' +
+ '
' +
+ ' ' +
+ ' ' +
+ '
' +
+ ' ' +
+ ' ' +
+ ' ' +
+ '',
+ statusHintTemplate = '
',
- update = function (item) {
+ update = function (item) {
- var $html = $(template),
- $indicator = $html.find('.indicator'),
- $a = $html.find('a'),
- $img = $html.find('.icon img'),
- $label = $html.find('.label');
+ var $html = $(template),
+ $indicator = $html.find('.indicator'),
+ $a = $html.find('a'),
+ $img = $html.find('.icon img'),
+ $label = $html.find('.label');
- $html
- .addClass(item.isFolder() ? 'folder' : 'file')
- .data('item', item);
+ $html
+ .addClass(item.isFolder() ? 'folder' : 'file')
+ .data('item', item);
- location.setLink($a, item);
- $img.attr('src', resource.image('folder'));
- $label.text(item.label);
+ location.setLink($a, item);
+ $img.attr('src', resource.image('folder'));
+ $label.text(item.label);
- if (item.isFolder()) {
+ if (item.isFolder()) {
- var subfolders = item.getSubfolders();
+ var subfolders = item.getSubfolders();
- // indicator
- if ((item.isManaged && !item.isContentFetched) || subfolders.length) {
+ // indicator
+ if ((item.isManaged && !item.isContentFetched) || subfolders.length) {
- $indicator.removeClass('none');
+ $indicator.removeClass('none');
- if ((item.isManaged && !item.isContentFetched)) {
- $indicator.addClass('unknown');
- } else if (item.isContentVisible) {
- $indicator.addClass('open');
- } else {
- $indicator.addClass('close');
- }
- }
+ if ((item.isManaged && !item.isContentFetched)) {
+ $indicator.addClass('unknown');
+ } else if (item.isContentVisible) {
+ $indicator.addClass('open');
+ } else {
+ $indicator.addClass('close');
+ }
+ }
- // is it the domain?
- if (item.isDomain()) {
- $html.addClass('domain');
- $img.attr('src', resource.image('home'));
- }
+ // is it the domain?
+ if (item.isDomain()) {
+ $html.addClass('domain');
+ $img.attr('src', resource.image('home'));
+ }
- // is it the root?
- if (item.isRoot()) {
- $html.addClass('root');
- $img.attr('src', resource.image('home'));
- }
+ // is it the root?
+ if (item.isRoot()) {
+ $html.addClass('root');
+ $img.attr('src', resource.image('home'));
+ }
- // is it the current folder?
- if (item.isCurrentFolder()) {
- $html.addClass('current');
- // $img.attr('src', resource.image('folder-open'));
- }
+ // is it the current folder?
+ if (item.isCurrentFolder()) {
+ $html.addClass('current');
+ // $img.attr('src', resource.image('folder-open'));
+ }
- // does it have subfolders?
- if (subfolders.length) {
- var $ul = $('
').appendTo($html),
- counter = 0;
- _.each(subfolders, function (e) {
- counter += 1;
- if (counter <= settings.maxSubfolders) {
- $('
').append(update(e)).appendTo($ul);
- }
- });
- if (subfolders.length > settings.maxSubfolders) {
- $('
… ' + (subfolders.length - settings.maxSubfolders) + ' more subfolders ').appendTo($ul);
- }
- if (!item.isContentVisible) {
- $ul.hide();
- }
- }
+ // does it have subfolders?
+ if (subfolders.length) {
+ var $ul = $('
').appendTo($html),
+ counter = 0;
+ _.each(subfolders, function (e) {
+ counter += 1;
+ if (counter <= settings.maxSubfolders) {
+ $('
').append(update(e)).appendTo($ul);
+ }
+ });
+ if (subfolders.length > settings.maxSubfolders) {
+ $('
… ' + (subfolders.length - settings.maxSubfolders) + ' more subfolders ').appendTo($ul);
+ }
+ if (!item.isContentVisible) {
+ $ul.hide();
+ }
+ }
- // reflect folder status
- if (!item.isManaged) {
- $img.attr('src', resource.image('folder-page'));
- }
- }
+ // reflect folder status
+ if (!item.isManaged) {
+ $img.attr('src', resource.image('folder-page'));
+ }
+ }
- if (item.$tree) {
- item.$tree.replaceWith($html);
- }
- item.$tree = $html;
+ if (item.$tree) {
+ item.$tree.replaceWith($html);
+ }
+ item.$tree = $html;
- return $html;
- },
+ return $html;
+ },
- createOnIndicatorClick = function () {
+ createOnIndicatorClick = function () {
- var $tree = $('#tree'),
- slide = function (item, $indicator, $content, down) {
+ var $tree = $('#tree'),
+ slide = function (item, $indicator, $content, down) {
- item.isContentVisible = down;
- $indicator.removeClass('open close').addClass(down ? 'open' : 'close');
- $tree.scrollpanel('update', true);
- $content[down ? 'slideDown' : 'slideUp'](function () {
+ item.isContentVisible = down;
+ $indicator.removeClass('open close').addClass(down ? 'open' : 'close');
+ $tree.scrollpanel('update', true);
+ $content[down ? 'slideDown' : 'slideUp'](function () {
- $tree.scrollpanel('update');
- });
- };
+ $tree.scrollpanel('update');
+ });
+ };
- return function () {
+ return function () {
- var $indicator = $(this),
- $item = $indicator.closest('.item'),
- item = $item.data('item'),
- $content = $item.find('> ul.content');
+ var $indicator = $(this),
+ $item = $indicator.closest('.item'),
+ item = $item.data('item'),
+ $content = $item.find('> ul.content');
- if ($indicator.hasClass('unknown')) {
+ if ($indicator.hasClass('unknown')) {
- item.fetchContent(function (item) {
+ item.fetchContent(function (item) {
- item.isContentVisible = false;
+ item.isContentVisible = false;
- var $item = update(item),
- $indicator = $item.find('> .indicator'),
- $content = $item.find('> ul.content');
+ var $item = update(item),
+ $indicator = $item.find('> .indicator'),
+ $content = $item.find('> ul.content');
- if (!$indicator.hasClass('none')) {
- slide(item, $indicator, $content, true);
- }
- });
+ if (!$indicator.hasClass('none')) {
+ slide(item, $indicator, $content, true);
+ }
+ });
- } else if ($indicator.hasClass('open')) {
+ } else if ($indicator.hasClass('open')) {
- slide(item, $indicator, $content, false);
+ slide(item, $indicator, $content, false);
- } else if ($indicator.hasClass('close')) {
+ } else if ($indicator.hasClass('close')) {
- slide(item, $indicator, $content, true);
- }
- };
- },
+ slide(item, $indicator, $content, true);
+ }
+ };
+ },
- shiftTree = function (forceVisible, dontAnimate) {
+ shiftTree = function (forceVisible, dontAnimate) {
- var $tree = $("#tree"),
- $view = $("#view"),
- left = ((settings.slide && $tree.outerWidth() < $view.offset().left) || forceVisible || !$view.is(':visible')) ? 0 : 18 - $tree.outerWidth();
+ var $tree = $("#tree"),
+ $view = $("#view"),
+ left = ((settings.slide && $tree.outerWidth() < $view.offset().left) || forceVisible || !$view.is(':visible')) ? 0 : 18 - $tree.outerWidth();
- if (dontAnimate) {
- $tree.stop().css({ left: left });
- } else {
- $tree.stop().animate({ left: left });
- }
- },
+ if (dontAnimate) {
+ $tree.stop().css({ left: left });
+ } else {
+ $tree.stop().animate({ left: left });
+ }
+ },
- fetchTree = function (item, callback) {
+ fetchTree = function (item, callback) {
- item.isContentVisible = true;
- item.fetchContent(function (item) {
+ item.isContentVisible = true;
+ item.fetchContent(function (item) {
- if (item.parent) {
- fetchTree(item.parent, callback);
- } else {
- callback(item);
- }
- });
- },
+ if (item.parent) {
+ fetchTree(item.parent, callback);
+ } else {
+ callback(item);
+ }
+ });
+ },
- adjustSpacing = function () {
+ adjustSpacing = function () {
- var $tree = $('#tree'),
- winHeight = $(window).height(),
- navHeight = $('#topbar').outerHeight(),
- footerHeight = $('#bottombar').outerHeight();
+ var $tree = $('#tree'),
+ winHeight = $(window).height(),
+ navHeight = $('#topbar').outerHeight(),
+ footerHeight = $('#bottombar').outerHeight();
- $tree.css({
- top: navHeight,
- height: winHeight - navHeight - footerHeight - 16
- });
+ $tree.css({
+ top: navHeight,
+ height: winHeight - navHeight - footerHeight - 16
+ });
- $tree.scrollpanel('update');
- },
+ $tree.scrollpanel('update');
+ },
- onLocationChanged = function (item) {
+ onLocationChanged = function (item) {
- fetchTree(item, function (root) {
+ fetchTree(item, function (root) {
- $('#tree')
- .find('.sp-container').append(update(root)).end()
- .show();
- adjustSpacing();
- shiftTree(false, true);
- });
- },
+ $('#tree')
+ .find('.sp-container').append(update(root)).end()
+ .show();
+ adjustSpacing();
+ shiftTree(false, true);
+ });
+ },
- init = function () {
+ init = function () {
- if (!settings.enabled) {
- return;
- }
+ if (!settings.enabled) {
+ return;
+ }
- var $tree = $('
')
- .appendTo('body')
- .scrollpanel()
- .on('click', '.indicator', createOnIndicatorClick())
- .on('mouseenter', function () {
+ var $tree = $('
')
+ .appendTo('body')
+ .scrollpanel()
+ .on('click', '.indicator', createOnIndicatorClick())
+ .on('mouseenter', function () {
- shiftTree(true);
- })
- .on('mouseleave', function () {
+ shiftTree(true);
+ })
+ .on('mouseleave', function () {
- shiftTree();
- });
+ shiftTree();
+ });
- event.sub('ready', adjustSpacing);
- event.sub('location.changed', onLocationChanged);
+ event.sub('ready', adjustSpacing);
+ event.sub('location.changed', onLocationChanged);
- $(window).on('resize', function () {
+ $(window).on('resize', function () {
- adjustSpacing();
- shiftTree();
- });
- };
+ adjustSpacing();
+ shiftTree();
+ });
+ };
- init();
+ init();
});
diff --git a/src/_h5ai/client/js/inc/info.js b/src/_h5ai/client/js/inc/info.js
index 74df50f6..470dd8fc 100644
--- a/src/_h5ai/client/js/inc/info.js
+++ b/src/_h5ai/client/js/inc/info.js
@@ -1,167 +1,178 @@
modulejs.define('info', ['$', 'config'], function ($, config) {
- var testsTemp =
- '
',
+ var testsTemp =
+ '
',
- testTemp =
- '
' +
- ' ' +
- ' ' +
- '
' +
- ' ',
+ testTemp =
+ '
' +
+ ' ' +
+ ' ' +
+ '
' +
+ ' ',
- loginTemp =
- '
' +
- '
' +
- '
login ' +
- '
logout ' +
- '
' +
- 'The preset password is the empty string, so just hit login. ' +
- 'You might change it in the index file to keep this information private.' +
- '
' +
- '
',
+ loginTemp =
+ '
' +
+ '
' +
+ '
login ' +
+ '
logout ' +
+ '
' +
+ 'The preset password is the empty string, so just hit login. ' +
+ 'You might change it in the index file to keep this information private.' +
+ '
' +
+ '
',
- setup = config.setup,
+ setup = config.setup,
- addTests = function () {
+ addTests = function () {
- var addTest = function (label, info, passed, result) {
+ var addTest = function (label, info, passed, result) {
- $(testTemp)
- .find('.label')
- .text(label)
- .end()
- .find('.result')
- .addClass(passed ? 'passed' : 'failed')
- .text(result ? result : (passed ? 'yes' : 'no'))
- .end()
- .find('.info')
- .html(info)
- .end()
- .appendTo('#tests');
- };
+ $(testTemp)
+ .find('.label')
+ .text(label)
+ .end()
+ .find('.result')
+ .addClass(passed ? 'passed' : 'failed')
+ .text(result ? result : (passed ? 'yes' : 'no'))
+ .end()
+ .find('.info')
+ .html(info)
+ .end()
+ .appendTo('#tests');
+ };
- $(testsTemp).appendTo('body');
+ $(testsTemp).appendTo('body');
- addTest(
- 'Server software', 'Server is one of apache, lighttpd, nginx or cherokee',
- setup.HAS_SERVER, setup.SERVER_NAME + ' ' + setup.SERVER_VERSION
- );
+ addTest(
+ 'Index file found', 'Add
' + setup.INDEX_HREF + ' to your index file list',
+ setup.INDEX_HREF
+ );
- addTest(
- 'PHP version', 'PHP version >= ' + setup.MIN_PHP_VERSION,
- setup.HAS_PHP_VERSION, setup.PHP_VERSION
- );
+ addTest(
+ 'Options parsable', 'File
options.json is readable and syntax is correct',
+ config.options !== null
+ );
- addTest(
- 'Cache directory', 'Web server has write access',
- setup.HAS_WRITABLE_CACHE
- );
+ addTest(
+ 'Types parsable', 'File
types.json is readable and syntax is correct',
+ config.types !== null
+ );
- addTest(
- 'Image thumbs', 'PHP GD extension with JPEG support available',
- setup.HAS_PHP_JPG
- );
+ addTest(
+ 'Server software', 'Server is one of apache, lighttpd, nginx or cherokee',
+ setup.HAS_SERVER, setup.SERVER_NAME + ' ' + setup.SERVER_VERSION
+ );
- addTest(
- 'Use EXIF thumbs', 'PHP EXIF extension available',
- setup.HAS_PHP_EXIF
- );
+ addTest(
+ 'PHP version', 'PHP version >= ' + setup.MIN_PHP_VERSION,
+ setup.HAS_PHP_VERSION, setup.PHP_VERSION
+ );
- addTest(
- 'Movie thumbs', 'Command line program
avconv or
ffmpeg available',
- setup.HAS_CMD_AVCONV || setup.HAS_CMD_FFMPEG
- );
+ addTest(
+ 'Cache directory', 'Web server has write access',
+ setup.HAS_WRITABLE_CACHE
+ );
- addTest(
- 'PDF thumbs', 'Command line program
convert available',
- setup.HAS_CMD_CONVERT
- );
+ addTest(
+ 'Image thumbs', 'PHP GD extension with JPEG support available',
+ setup.HAS_PHP_JPG
+ );
- addTest(
- 'Shell tar', 'Command line program
tar available',
- setup.HAS_CMD_TAR
- );
+ addTest(
+ 'Use EXIF thumbs', 'PHP EXIF extension available',
+ setup.HAS_PHP_EXIF
+ );
- addTest(
- 'Shell zip', 'Command line program
zip available',
- setup.HAS_CMD_ZIP
- );
+ addTest(
+ 'Movie thumbs', 'Command line program
avconv or
ffmpeg available',
+ setup.HAS_CMD_AVCONV || setup.HAS_CMD_FFMPEG
+ );
- addTest(
- 'Shell du', 'Command line program
du available',
- setup.HAS_CMD_DU
- );
- },
+ addTest(
+ 'PDF thumbs', 'Command line program
convert available',
+ setup.HAS_CMD_CONVERT
+ );
- addLogin = function () {
+ addTest(
+ 'Shell tar', 'Command line program
tar available',
+ setup.HAS_CMD_TAR
+ );
- var request = function (data) {
+ addTest(
+ 'Shell zip', 'Command line program
zip available',
+ setup.HAS_CMD_ZIP
+ );
- $.ajax({
- url: 'server/php/index.php',
- type: 'POST',
- dataType: 'JSON',
- data: data
- })
- .always(function () {
+ addTest(
+ 'Shell du', 'Command line program
du available',
+ setup.HAS_CMD_DU
+ );
+ },
- window.location.reload();
- });
- },
+ addLogin = function () {
- onLogin = function () {
+ var request = function (data) {
- request({
- 'action': 'login',
- 'pass': $('#pass').val()
- });
- },
+ $.ajax({
+ url: 'server/php/index.php',
+ type: 'POST',
+ dataType: 'JSON',
+ data: data
+ })
+ .always(function () {
- onLogout = function () {
+ window.location.reload();
+ });
+ },
- request({
- 'action': 'logout'
- });
- },
+ onLogin = function () {
- onKeydown = function (event) {
+ request({
+ 'action': 'login',
+ 'pass': $('#pass').val()
+ });
+ },
- if (event.which === 13) {
- onLogin();
- }
- };
+ onLogout = function () {
- $(loginTemp).appendTo('body');
+ request({
+ 'action': 'logout'
+ });
+ },
- if (setup.AS_ADMIN) {
- $('#pass').remove();
- $('#login').remove();
- $('#logout').on('click', onLogout);
- } else {
- $('#pass').on('keydown', onKeydown).focus();
- $('#login').on('click', onLogin);
- $('#logout').remove();
- }
- if (setup.HAS_CUSTOM_PASSHASH) {
- $('#hint').remove();
- }
- },
+ onKeydown = function (event) {
- init = function () {
+ if (event.which === 13) {
+ onLogin();
+ }
+ };
- $('
Index: ')
- .appendTo('body')
- .find('.value').text(setup.INDEX_HREF);
+ $(loginTemp).appendTo('body');
- if (setup.AS_ADMIN) {
- addTests();
- }
- addLogin();
- };
+ if (setup.AS_ADMIN) {
+ $('#pass').remove();
+ $('#login').remove();
+ $('#logout').on('click', onLogout);
+ } else {
+ $('#pass').on('keydown', onKeydown).focus();
+ $('#login').on('click', onLogin);
+ $('#logout').remove();
+ }
+ if (setup.HAS_CUSTOM_PASSHASH) {
+ $('#hint').remove();
+ }
+ },
- init();
+ init = function () {
+
+ addLogin();
+ if (setup.AS_ADMIN) {
+ addTests();
+ }
+ };
+
+ init();
});
diff --git a/src/_h5ai/client/js/inc/main.js b/src/_h5ai/client/js/inc/main.js
index c8521a76..4f86d6fd 100644
--- a/src/_h5ai/client/js/inc/main.js
+++ b/src/_h5ai/client/js/inc/main.js
@@ -1,17 +1,17 @@
modulejs.define('main', ['_', 'core/event'], function (_, event) {
- modulejs.require('view/ensure');
- modulejs.require('view/items');
- modulejs.require('view/spacing');
- modulejs.require('view/viewmode');
+ modulejs.require('view/ensure');
+ modulejs.require('view/items');
+ modulejs.require('view/spacing');
+ modulejs.require('view/viewmode');
- _.each(modulejs.state(), function (state, id) {
+ _.each(modulejs.state(), function (state, id) {
- if (/^ext\/.+/.test(id)) {
- modulejs.require(id);
- }
- });
+ if (/^ext\/.+/.test(id)) {
+ modulejs.require(id);
+ }
+ });
- event.pub('ready');
+ event.pub('ready');
});
diff --git a/src/_h5ai/client/js/inc/model/item.js b/src/_h5ai/client/js/inc/model/item.js
index d702221e..712a3580 100644
--- a/src/_h5ai/client/js/inc/model/item.js
+++ b/src/_h5ai/client/js/inc/model/item.js
@@ -2,248 +2,248 @@
modulejs.define('model/item', ['_', 'core/types', 'core/event', 'core/settings', 'core/server', 'core/location'], function (_, types, event, settings, server, location) {
- var reEndsWithSlash = /\/$/,
+ var reEndsWithSlash = /\/$/,
- startsWith = function (sequence, part) {
+ startsWith = function (sequence, part) {
- return sequence.slice && part.length && sequence.slice(0, part.length) === part;
- },
+ return sequence.slice && part.length && sequence.slice(0, part.length) === part;
+ },
- createLabel = function (sequence) {
+ createLabel = function (sequence) {
- sequence = sequence.replace(reEndsWithSlash, '');
- try { sequence = decodeURIComponent(sequence); } catch (e) {}
- return sequence;
- },
+ sequence = sequence.replace(reEndsWithSlash, '');
+ try { sequence = decodeURIComponent(sequence); } catch (e) {}
+ return sequence;
+ },
- reSplitPath = /^(.*\/)([^\/]+\/?)$/,
+ reSplitPath = /^(.*\/)([^\/]+\/?)$/,
- splitPath = function (sequence) {
+ splitPath = function (sequence) {
- if (sequence === '/') {
- return { parent: null, name: '/' };
- }
+ if (sequence === '/') {
+ return { parent: null, name: '/' };
+ }
- var match = reSplitPath.exec(sequence);
- if (match) {
- var split = { parent: match[1], name: match[2] };
+ var match = reSplitPath.exec(sequence);
+ if (match) {
+ var split = { parent: match[1], name: match[2] };
- if (split.parent && !startsWith(split.parent, settings.rootHref)) {
- split.parent = null;
- }
- return split;
- }
- },
+ if (split.parent && !startsWith(split.parent, settings.rootHref)) {
+ split.parent = null;
+ }
+ return split;
+ }
+ },
- cache = {},
+ cache = {},
- getItem = function (absHref, time, size, isManaged, isContentFetched, md5, sha1) {
+ getItem = function (absHref, time, size, isManaged, isContentFetched, md5, sha1) {
- absHref = location.forceEncoding(absHref);
+ absHref = location.forceEncoding(absHref);
- if (!startsWith(absHref, settings.rootHref)) {
- return null;
- }
+ if (!startsWith(absHref, settings.rootHref)) {
+ return null;
+ }
- var self = cache[absHref] || new Item(absHref);
+ var self = cache[absHref] || new Item(absHref);
- if (_.isNumber(time)) {
- self.time = time;
- }
- if (_.isNumber(size)) {
- self.size = size;
- }
- if (isManaged) {
- self.isManaged = true;
- }
- if (isContentFetched) {
- self.isContentFetched = true;
- }
- if (md5) {
- self.md5 = md5;
- }
- if (sha1) {
- self.sha1 = sha1;
- }
+ if (_.isNumber(time)) {
+ self.time = time;
+ }
+ if (_.isNumber(size)) {
+ self.size = size;
+ }
+ if (isManaged) {
+ self.isManaged = true;
+ }
+ if (isContentFetched) {
+ self.isContentFetched = true;
+ }
+ if (md5) {
+ self.md5 = md5;
+ }
+ if (sha1) {
+ self.sha1 = sha1;
+ }
- return self;
- },
+ return self;
+ },
- removeItem = function (absHref) {
+ removeItem = function (absHref) {
- absHref = location.forceEncoding(absHref);
+ absHref = location.forceEncoding(absHref);
- var self = cache[absHref];
+ var self = cache[absHref];
- if (self) {
- delete cache[absHref];
- if (self.parent) {
- delete self.parent.content[self.absHref];
- }
- _.each(self.content, function (item) {
+ if (self) {
+ delete cache[absHref];
+ if (self.parent) {
+ delete self.parent.content[self.absHref];
+ }
+ _.each(self.content, function (item) {
- removeItem(item.absHref);
- });
- }
- },
+ removeItem(item.absHref);
+ });
+ }
+ },
- fetchContent = function (absHref, callback) {
+ fetchContent = function (absHref, callback) {
- var self = getItem(absHref);
+ var self = getItem(absHref);
- if (!_.isFunction(callback)) {
- callback = function () {};
- }
+ if (!_.isFunction(callback)) {
+ callback = function () {};
+ }
- if (self.isContentFetched) {
- callback(self);
- } else {
- server.request({action: 'get', items: true, itemsHref: self.absHref, itemsWhat: 1}, function (response) {
+ if (self.isContentFetched) {
+ callback(self);
+ } else {
+ server.request({action: 'get', items: true, itemsHref: self.absHref, itemsWhat: 1}, function (response) {
- if (response.items) {
- _.each(response.items, function (item) {
- getItem(item.absHref, item.time, item.size, item.is_managed, item.content, item.md5, item.sha1);
- });
- }
+ if (response.items) {
+ _.each(response.items, function (item) {
+ getItem(item.absHref, item.time, item.size, item.is_managed, item.content, item.md5, item.sha1);
+ });
+ }
- callback(self);
- });
- }
- };
+ callback(self);
+ });
+ }
+ };
- var Item = function (absHref) {
+ var Item = function (absHref) {
- var split = splitPath(absHref);
+ var split = splitPath(absHref);
- cache[absHref] = this;
+ cache[absHref] = this;
- this.absHref = absHref;
- this.type = types.getType(absHref);
- this.label = createLabel(absHref === '/' ? location.getDomain() : split.name);
- this.time = null;
- this.size = null;
- this.parent = null;
- this.isManaged = null;
- this.content = {};
+ this.absHref = absHref;
+ this.type = types.getType(absHref);
+ this.label = createLabel(absHref === '/' ? location.getDomain() : split.name);
+ this.time = null;
+ this.size = null;
+ this.parent = null;
+ this.isManaged = null;
+ this.content = {};
- if (split.parent) {
- this.parent = getItem(split.parent);
- this.parent.content[this.absHref] = this;
- if (_.keys(this.parent.content).length > 1) {
- this.parent.isContentFetched = true;
- }
- }
- };
+ if (split.parent) {
+ this.parent = getItem(split.parent);
+ this.parent.content[this.absHref] = this;
+ if (_.keys(this.parent.content).length > 1) {
+ this.parent.isContentFetched = true;
+ }
+ }
+ };
- _.extend(Item.prototype, {
+ _.extend(Item.prototype, {
- isFolder: function () {
+ isFolder: function () {
- return reEndsWithSlash.test(this.absHref);
- },
+ return reEndsWithSlash.test(this.absHref);
+ },
- isCurrentFolder: function () {
+ isCurrentFolder: function () {
- return this.absHref === location.getAbsHref();
- },
+ return this.absHref === location.getAbsHref();
+ },
- isInCurrentFolder: function () {
+ isInCurrentFolder: function () {
- return !!this.parent && this.parent.isCurrentFolder();
- },
+ return !!this.parent && this.parent.isCurrentFolder();
+ },
- isCurrentParentFolder: function () {
+ isCurrentParentFolder: function () {
- return this === getItem(location.getAbsHref()).parent;
- },
+ return this === getItem(location.getAbsHref()).parent;
+ },
- isDomain: function () {
+ isDomain: function () {
- return this.absHref === '/';
- },
+ return this.absHref === '/';
+ },
- isRoot: function () {
+ isRoot: function () {
- return this.absHref === settings.rootHref;
- },
+ return this.absHref === settings.rootHref;
+ },
- isH5ai: function () {
+ isH5ai: function () {
- return this.absHref === settings.appHref;
- },
+ return this.absHref === settings.appHref;
+ },
- isEmpty: function () {
+ isEmpty: function () {
- return _.keys(this.content).length === 0;
- },
+ return _.keys(this.content).length === 0;
+ },
- fetchContent: function (callback) {
+ fetchContent: function (callback) {
- return fetchContent(this.absHref, callback);
- },
+ return fetchContent(this.absHref, callback);
+ },
- getCrumb: function () {
+ getCrumb: function () {
- var item = this,
- crumb = [item];
+ var item = this,
+ crumb = [item];
- while (item.parent) {
- item = item.parent;
- crumb.unshift(item);
- }
+ while (item.parent) {
+ item = item.parent;
+ crumb.unshift(item);
+ }
- return crumb;
- },
+ return crumb;
+ },
- getSubfolders: function () {
+ getSubfolders: function () {
- return _.sortBy(_.filter(this.content, function (item) {
+ return _.sortBy(_.filter(this.content, function (item) {
- return item.isFolder();
- }), function (item) {
+ return item.isFolder();
+ }), function (item) {
- return item.label.toLowerCase();
- });
- },
+ return item.label.toLowerCase();
+ });
+ },
- getStats: function () {
+ getStats: function () {
- var folders = 0,
- files = 0;
+ var folders = 0,
+ files = 0;
- _.each(this.content, function (item) {
+ _.each(this.content, function (item) {
- if (item.isFolder()) {
- folders += 1;
- } else {
- files += 1;
- }
- });
+ if (item.isFolder()) {
+ folders += 1;
+ } else {
+ files += 1;
+ }
+ });
- var depth = 0,
- item = this;
+ var depth = 0,
+ item = this;
- while (item.parent) {
- depth += 1;
- item = item.parent;
- }
+ while (item.parent) {
+ depth += 1;
+ item = item.parent;
+ }
- return {
- folders: folders,
- files: files,
- depth: depth
- };
- }
- });
+ return {
+ folders: folders,
+ files: files,
+ depth: depth
+ };
+ }
+ });
- return {
- get: getItem,
- remove: removeItem
- };
+ return {
+ get: getItem,
+ remove: removeItem
+ };
});
diff --git a/src/_h5ai/client/js/inc/view/ensure.js b/src/_h5ai/client/js/inc/view/ensure.js
index 3616383c..253e977f 100644
--- a/src/_h5ai/client/js/inc/view/ensure.js
+++ b/src/_h5ai/client/js/inc/view/ensure.js
@@ -1,49 +1,50 @@
modulejs.define('view/ensure', ['$', 'config', 'core/event'], function ($, config, event) {
- var selb = '#bottombar',
- selr = selb + ' .right',
- sela = selr + ' a',
- sequence = 'powered by h5ai ' + config.setup.VERSION,
- url = 'http://larsjung.de/h5ai/',
- isVisible = ':visible',
- styleKey = 'style',
- styleVal = 'display: inline !important',
+ var selb = '#bottombar',
+ selr = selb + ' .right',
+ sela = selr + ' a',
+ sequence = 'powered by h5ai ' + config.setup.VERSION,
+ url = 'http://larsjung.de/h5ai/',
+ isVisible = ':visible',
+ styleKey = 'style',
+ styleVal = 'display: inline !important',
- ensure = function () {
+ ensure = function () {
- if (
- $(selr).text() !== sequence ||
- $(sela).filter(isVisible).length !== 1 ||
- $(selr).filter(isVisible).length !== 1 ||
- $(selb).filter(isVisible).length !== 1
- ) {
- if ($(selb).filter(isVisible).length !== 1) {
- $(selb).remove();
- $('
').attr(styleKey, styleVal).appendTo('body');
- }
- $(selr).remove();
- $('
')
- .addClass('right')
- .attr(styleKey, styleVal)
- .find('a')
- .attr('href', url)
- .attr('title', sequence)
- .text(sequence)
- .attr(styleKey, styleVal)
- .end()
- .prependTo(selb);
- }
- },
+ if (
+ $(selr).text() !== sequence ||
+ $(sela).attr('href') !== url ||
+ $(sela).filter(isVisible).length !== 1 ||
+ $(selr).filter(isVisible).length !== 1 ||
+ $(selb).filter(isVisible).length !== 1
+ ) {
+ if ($(selb).filter(isVisible).length !== 1) {
+ $(selb).remove();
+ $('
').attr(styleKey, styleVal).appendTo('body');
+ }
+ $(selr).remove();
+ $('
')
+ .addClass('right')
+ .attr(styleKey, styleVal)
+ .find('a')
+ .attr('href', url)
+ .attr('title', sequence)
+ .text(sequence)
+ .attr(styleKey, styleVal)
+ .end()
+ .prependTo(selb);
+ }
+ },
- init = function () {
+ init = function () {
- event.sub('ready', function () {
+ event.sub('ready', function () {
- ensure();
- setInterval(ensure, 60000);
- });
- };
+ ensure();
+ setInterval(ensure, 60000);
+ });
+ };
- init();
+ init();
});
diff --git a/src/_h5ai/client/js/inc/view/items.js b/src/_h5ai/client/js/inc/view/items.js
index 9fe17f10..6cfa9db3 100644
--- a/src/_h5ai/client/js/inc/view/items.js
+++ b/src/_h5ai/client/js/inc/view/items.js
@@ -1,165 +1,167 @@
modulejs.define('view/items', ['_', '$', 'core/settings', 'core/resource', 'core/format', 'core/event', 'core/location'], function (_, $, allsettings, resource, format, event, location) {
- var settings = _.extend({
- binaryPrefix: false,
- hideFolders: false,
- hideParentFolder: false,
- setParentFolderLabels: false
- }, allsettings.view),
+ var settings = _.extend({
+ binaryPrefix: false,
+ hideFolders: false,
+ hideParentFolder: false,
+ setParentFolderLabels: false
+ }, allsettings.view),
- itemTemplate = '
' +
- '' +
- ' ' +
- ' ' +
- ' ' +
- ' ' +
- ' ' +
- ' ' +
- ' ',
- hintTemplate = '
',
- contentTemplate = '
',
+ itemTemplate =
+ '
' +
+ '' +
+ ' ' +
+ ' ' +
+ ' ' +
+ ' ' +
+ ' ' +
+ ' ' +
+ ' ',
+ hintTemplate = '
',
+ contentTemplate =
+ '
',
- update = function (item, force) {
+ update = function (item, force) {
- if (!force && item.$view) {
- return item.$view;
- }
+ if (!force && item.$view) {
+ return item.$view;
+ }
- var $html = $(itemTemplate),
- $a = $html.find('a'),
- $iconImg = $html.find('.icon img'),
- $label = $html.find('.label'),
- $date = $html.find('.date'),
- $size = $html.find('.size');
+ var $html = $(itemTemplate),
+ $a = $html.find('a'),
+ $iconImg = $html.find('.icon img'),
+ $label = $html.find('.label'),
+ $date = $html.find('.date'),
+ $size = $html.find('.size');
- $html
- .addClass(item.isFolder() ? 'folder' : 'file')
- .data('item', item);
+ $html
+ .addClass(item.isFolder() ? 'folder' : 'file')
+ .data('item', item);
- location.setLink($a, item);
+ location.setLink($a, item);
- $iconImg.attr('src', resource.icon(item.type)).attr('alt', item.type);
- $label.text(item.label);
- $date.data('time', item.time).text(format.formatDate(item.time));
- $size.data('bytes', item.size).text(format.formatSize(item.size));
+ $iconImg.attr('src', resource.icon(item.type)).attr('alt', item.type);
+ $label.text(item.label);
+ $date.data('time', item.time).text(format.formatDate(item.time));
+ $size.data('bytes', item.size).text(format.formatSize(item.size));
- if (item.isFolder() && !item.isManaged) {
- $html.addClass('page');
- $iconImg.attr('src', resource.icon('folder-page'));
- }
+ if (item.isFolder() && !item.isManaged) {
+ $html.addClass('page');
+ $iconImg.attr('src', resource.icon('folder-page'));
+ }
- if (item.isCurrentParentFolder()) {
- $iconImg.attr('src', resource.icon('folder-parent'));
- if (!settings.setParentFolderLabels) {
- $label.addClass('l10n-parentDirectory');
- }
- $html.addClass('folder-parent');
- }
+ if (item.isCurrentParentFolder()) {
+ $iconImg.attr('src', resource.icon('folder-parent'));
+ if (!settings.setParentFolderLabels) {
+ $label.addClass('l10n-parentDirectory');
+ }
+ $html.addClass('folder-parent');
+ }
- if (item.$view) {
- item.$view.replaceWith($html);
- }
- item.$view = $html;
+ if (item.$view) {
+ item.$view.replaceWith($html);
+ }
+ item.$view = $html;
- return $html;
- },
+ return $html;
+ },
- onMouseenter = function () {
+ onMouseenter = function () {
- var item = $(this).closest('.item').data('item');
- event.pub('item.mouseenter', item);
- },
+ var item = $(this).closest('.item').data('item');
+ event.pub('item.mouseenter', item);
+ },
- onMouseleave = function () {
+ onMouseleave = function () {
- var item = $(this).closest('.item').data('item');
- event.pub('item.mouseleave', item);
- },
+ var item = $(this).closest('.item').data('item');
+ event.pub('item.mouseleave', item);
+ },
- onLocationChanged = function (item) {
+ onLocationChanged = function (item) {
- var $items = $('#items'),
- $empty = $('#view').find('.empty');
+ var $items = $('#items'),
+ $empty = $('#view').find('.empty');
- $items.find('.item').remove();
+ $items.find('.item').remove();
- if (item.parent && !settings.hideParentFolder) {
- $items.append(update(item.parent, true));
- }
+ if (item.parent && !settings.hideParentFolder) {
+ $items.append(update(item.parent, true));
+ }
- _.each(item.content, function (e) {
+ _.each(item.content, function (e) {
- if (!(e.isFolder() && settings.hideFolders)) {
- $items.append(update(e, true));
- }
- });
+ if (!(e.isFolder() && settings.hideFolders)) {
+ $items.append(update(e, true));
+ }
+ });
- if (item.isEmpty()) {
- $empty.show();
- } else {
- $empty.hide();
- }
+ if (item.isEmpty()) {
+ $empty.show();
+ } else {
+ $empty.hide();
+ }
- $('html,body').scrollLeft(0).scrollTop(0);
- },
+ $('html,body').scrollLeft(0).scrollTop(0);
+ },
- onLocationRefreshed = function (item, added, removed) {
+ onLocationRefreshed = function (item, added, removed) {
- var $items = $('#items'),
- $empty = $('#view').find('.empty');
+ var $items = $('#items'),
+ $empty = $('#view').find('.empty');
- _.each(added, function (item) {
+ _.each(added, function (item) {
- if (!(item.isFolder() && settings.hideFolders)) {
- update(item, true).hide().appendTo($items).fadeIn(400);
- }
- });
+ if (!(item.isFolder() && settings.hideFolders)) {
+ update(item, true).hide().appendTo($items).fadeIn(400);
+ }
+ });
- _.each(removed, function (item) {
+ _.each(removed, function (item) {
- item.$view.fadeOut(400, function () {
- item.$view.remove();
- });
- });
+ item.$view.fadeOut(400, function () {
+ item.$view.remove();
+ });
+ });
- if (item.isEmpty()) {
- setTimeout(function () { $empty.show(); }, 400);
- } else {
- $empty.hide();
- }
- },
+ if (item.isEmpty()) {
+ setTimeout(function () { $empty.show(); }, 400);
+ } else {
+ $empty.hide();
+ }
+ },
- init = function () {
+ init = function () {
- var $content = $(contentTemplate),
- $view = $content.find('#view'),
- $items = $view.find('#items'),
- $emtpy = $view.find('.empty').hide();
+ var $content = $(contentTemplate),
+ $view = $content.find('#view'),
+ $items = $view.find('#items'),
+ $emtpy = $view.find('.empty').hide();
- format.setDefaultMetric(settings.binaryPrefix);
+ format.setDefaultMetric(settings.binaryPrefix);
- $items
- .on('mouseenter', '.item a', onMouseenter)
- .on('mouseleave', '.item a', onMouseleave);
+ $items
+ .on('mouseenter', '.item a', onMouseenter)
+ .on('mouseleave', '.item a', onMouseleave);
- event.sub('location.changed', onLocationChanged);
- event.sub('location.refreshed', onLocationRefreshed);
+ event.sub('location.changed', onLocationChanged);
+ event.sub('location.refreshed', onLocationRefreshed);
- $content.appendTo('body');
- };
+ $content.appendTo('body');
+ };
- init();
+ init();
});
diff --git a/src/_h5ai/client/js/inc/view/spacing.js b/src/_h5ai/client/js/inc/view/spacing.js
index 805752ce..7f1ec0f1 100644
--- a/src/_h5ai/client/js/inc/view/spacing.js
+++ b/src/_h5ai/client/js/inc/view/spacing.js
@@ -1,33 +1,33 @@
modulejs.define('view/spacing', ['_', '$', 'core/settings', 'core/event'], function (_, $, allsettings, event) {
- var settings = _.extend({
- maxWidth: 960,
- top: 50,
- right: 'auto',
- bottom: 50,
- left: 'auto'
- }, allsettings.spacing),
+ var settings = _.extend({
+ maxWidth: 960,
+ top: 50,
+ right: 'auto',
+ bottom: 50,
+ left: 'auto'
+ }, allsettings.spacing),
- adjustSpacing = function () {
+ adjustSpacing = function () {
- $('#content').css({
- 'margin-top': settings.top + $('#topbar').outerHeight(),
- 'margin-bottom': settings.bottom + $('#bottombar').outerHeight()
- });
- },
+ $('#content').css({
+ 'margin-top': settings.top + $('#topbar').outerHeight(),
+ 'margin-bottom': settings.bottom + $('#bottombar').outerHeight()
+ });
+ },
- init = function () {
+ init = function () {
- $('#content').css({
- 'max-width': settings.maxWidth,
- 'margin-right': settings.right,
- 'margin-left': settings.left
- });
+ $('#content').css({
+ 'max-width': settings.maxWidth,
+ 'margin-right': settings.right,
+ 'margin-left': settings.left
+ });
- event.sub('ready', adjustSpacing);
- $(window).on('resize', adjustSpacing);
- };
+ event.sub('ready', adjustSpacing);
+ $(window).on('resize', adjustSpacing);
+ };
- init();
+ init();
});
diff --git a/src/_h5ai/client/js/inc/view/viewmode.js b/src/_h5ai/client/js/inc/view/viewmode.js
index d12156be..a53550dd 100644
--- a/src/_h5ai/client/js/inc/view/viewmode.js
+++ b/src/_h5ai/client/js/inc/view/viewmode.js
@@ -1,129 +1,129 @@
modulejs.define('view/viewmode', ['_', '$', 'core/settings', 'core/resource', 'core/store', 'core/event'], function (_, $, allsettings, resource, store, event) {
- var modes = ['details', 'grid', 'icons'],
- sizes = [16, 24, 32, 48, 64, 96, 128, 192, 256, 384],
+ var modes = ['details', 'grid', 'icons'],
+ sizes = [16, 24, 32, 48, 64, 96, 128, 192, 256, 384],
- settings = _.extend({}, {
- modes: modes,
- sizes: sizes
- }, allsettings.view),
+ settings = _.extend({}, {
+ modes: modes,
+ sizes: sizes
+ }, allsettings.view),
- storekey = 'viewmode',
- menuIsVisible = false,
+ storekey = 'viewmode',
+ menuIsVisible = false,
- sidebarToggleTemplate =
- '',
+ sidebarToggleTemplate =
+ '',
- modeTemplate =
- '
',
+ modeTemplate =
+ '
',
- sizeTemplate =
- '
',
+ sizeTemplate =
+ '
',
- adjustSpacing = function () {
+ adjustSpacing = function () {
- var contentWidth = $('#content').width(),
- $view = $('#view'),
- itemWidth = ($view.hasClass('view-icons') || $view.hasClass('view-grid')) ? ($view.find('.item').eq(0).outerWidth(true) || 1) : 1;
+ var contentWidth = $('#content').width(),
+ $view = $('#view'),
+ itemWidth = ($view.hasClass('view-icons') || $view.hasClass('view-grid')) ? ($view.find('.item').eq(0).outerWidth(true) || 1) : 1;
- $view.width(Math.floor(contentWidth / itemWidth) * itemWidth);
- },
+ $view.width(Math.floor(contentWidth / itemWidth) * itemWidth);
+ },
- update = function (mode, size) {
+ update = function (mode, size) {
- var $view = $('#view'),
- stored = store.get(storekey);
+ var $view = $('#view'),
+ stored = store.get(storekey);
- mode = mode || stored && stored.mode;
- size = size || stored && stored.size;
- mode = _.contains(settings.modes, mode) ? mode : settings.modes[0];
- size = _.contains(settings.sizes, size) ? size : settings.sizes[0];
- store.put(storekey, {mode: mode, size: size});
+ mode = mode || stored && stored.mode;
+ size = size || stored && stored.size;
+ mode = _.contains(settings.modes, mode) ? mode : settings.modes[0];
+ size = _.contains(settings.sizes, size) ? size : settings.sizes[0];
+ store.put(storekey, {mode: mode, size: size});
- _.each(modes, function (m) {
- if (m === mode) {
- $('#view-' + m).addClass('current');
- $view.addClass('view-' + m).show();
- } else {
- $('#view-' + m).removeClass('current');
- $view.removeClass('view-' + m);
- }
- });
+ _.each(modes, function (m) {
+ if (m === mode) {
+ $('#view-' + m).addClass('current');
+ $view.addClass('view-' + m).show();
+ } else {
+ $('#view-' + m).removeClass('current');
+ $view.removeClass('view-' + m);
+ }
+ });
- _.each(sizes, function (s) {
- if (s === size) {
- $view.addClass('size-' + s).show();
- } else {
- $view.removeClass('size-' + s);
- }
- });
+ _.each(sizes, function (s) {
+ if (s === size) {
+ $view.addClass('size-' + s).show();
+ } else {
+ $view.removeClass('size-' + s);
+ }
+ });
- $('#view-size').val(_.indexOf(_.intersection(sizes, settings.sizes), size));
+ $('#view-size').val(_.indexOf(_.intersection(sizes, settings.sizes), size));
- adjustSpacing();
- },
+ adjustSpacing();
+ },
- init = function () {
+ init = function () {
- var $sidebar = $('#sidebar'),
- $settings = $('#settings'),
- $viewBlock = $('
'),
- max;
+ var $sidebar = $('#sidebar'),
+ $settings = $('#settings'),
+ $viewBlock = $('
'),
+ max;
- $(sidebarToggleTemplate)
- .on('click', 'a', function (event) {
+ $(sidebarToggleTemplate)
+ .on('click', 'a', function (event) {
- menuIsVisible = !menuIsVisible;
- $sidebar.stop().animate({
- right: menuIsVisible ? 0 : -$sidebar.outerWidth()-1
- });
- event.preventDefault();
- })
- .appendTo('#navbar');
+ menuIsVisible = !menuIsVisible;
+ $sidebar.stop().animate({
+ right: menuIsVisible ? 0 : -$sidebar.outerWidth()-1
+ });
+ event.preventDefault();
+ })
+ .appendTo('#navbar');
- settings.modes = _.intersection(settings.modes, modes);
+ settings.modes = _.intersection(settings.modes, modes);
- if (settings.modes.length > 1) {
- _.each(modes, function (mode) {
- if (_.contains(settings.modes, mode)) {
- $(modeTemplate.replace(/\[MODE\]/g, mode))
- .appendTo($viewBlock)
- .on('click', 'a', function (event) {
+ if (settings.modes.length > 1) {
+ _.each(modes, function (mode) {
+ if (_.contains(settings.modes, mode)) {
+ $(modeTemplate.replace(/\[MODE\]/g, mode))
+ .appendTo($viewBlock)
+ .on('click', 'a', function (event) {
- update(mode);
- event.preventDefault();
- });
- }
- });
- }
+ update(mode);
+ event.preventDefault();
+ });
+ }
+ });
+ }
- if (settings.sizes.length > 1) {
- max = settings.sizes.length-1;
- $(sizeTemplate)
- .prop('max', max).attr('max', max)
- .on('input change', function (event) {
+ if (settings.sizes.length > 1) {
+ max = settings.sizes.length-1;
+ $(sizeTemplate)
+ .prop('max', max).attr('max', max)
+ .on('input change', function (event) {
- update(null, settings.sizes[parseInt(event.target.value, 10)]);
- })
- .appendTo($viewBlock);
- }
+ update(null, settings.sizes[parseInt(event.target.value, 10)]);
+ })
+ .appendTo($viewBlock);
+ }
- $viewBlock.appendTo($settings);
+ $viewBlock.appendTo($settings);
- update();
+ update();
- event.sub('location.changed', adjustSpacing);
- $(window).on('resize', adjustSpacing);
- };
+ event.sub('location.changed', adjustSpacing);
+ $(window).on('resize', adjustSpacing);
+ };
- init();
+ init();
});
diff --git a/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.12.js b/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.12.js
new file mode 100644
index 00000000..6756fa61
--- /dev/null
+++ b/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.12.js
@@ -0,0 +1,221 @@
+/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
+ * Licensed under the MIT License (LICENSE.txt).
+ *
+ * Version: 3.1.12
+ *
+ * Requires: jQuery 1.2.2+
+ */
+
+(function (factory) {
+ if ( typeof define === 'function' && define.amd ) {
+ // AMD. Register as an anonymous module.
+ define(['jquery'], factory);
+ } else if (typeof exports === 'object') {
+ // Node/CommonJS style for Browserify
+ module.exports = factory;
+ } else {
+ // Browser globals
+ factory(jQuery);
+ }
+}(function ($) {
+
+ var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'],
+ toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ?
+ ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'],
+ slice = Array.prototype.slice,
+ nullLowestDeltaTimeout, lowestDelta;
+
+ if ( $.event.fixHooks ) {
+ for ( var i = toFix.length; i; ) {
+ $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
+ }
+ }
+
+ var special = $.event.special.mousewheel = {
+ version: '3.1.12',
+
+ setup: function() {
+ if ( this.addEventListener ) {
+ for ( var i = toBind.length; i; ) {
+ this.addEventListener( toBind[--i], handler, false );
+ }
+ } else {
+ this.onmousewheel = handler;
+ }
+ // Store the line height and page height for this particular element
+ $.data(this, 'mousewheel-line-height', special.getLineHeight(this));
+ $.data(this, 'mousewheel-page-height', special.getPageHeight(this));
+ },
+
+ teardown: function() {
+ if ( this.removeEventListener ) {
+ for ( var i = toBind.length; i; ) {
+ this.removeEventListener( toBind[--i], handler, false );
+ }
+ } else {
+ this.onmousewheel = null;
+ }
+ // Clean up the data we added to the element
+ $.removeData(this, 'mousewheel-line-height');
+ $.removeData(this, 'mousewheel-page-height');
+ },
+
+ getLineHeight: function(elem) {
+ var $elem = $(elem),
+ $parent = $elem['offsetParent' in $.fn ? 'offsetParent' : 'parent']();
+ if (!$parent.length) {
+ $parent = $('body');
+ }
+ return parseInt($parent.css('fontSize'), 10) || parseInt($elem.css('fontSize'), 10) || 16;
+ },
+
+ getPageHeight: function(elem) {
+ return $(elem).height();
+ },
+
+ settings: {
+ adjustOldDeltas: true, // see shouldAdjustOldDeltas() below
+ normalizeOffset: true // calls getBoundingClientRect for each event
+ }
+ };
+
+ $.fn.extend({
+ mousewheel: function(fn) {
+ return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel');
+ },
+
+ unmousewheel: function(fn) {
+ return this.unbind('mousewheel', fn);
+ }
+ });
+
+
+ function handler(event) {
+ var orgEvent = event || window.event,
+ args = slice.call(arguments, 1),
+ delta = 0,
+ deltaX = 0,
+ deltaY = 0,
+ absDelta = 0,
+ offsetX = 0,
+ offsetY = 0;
+ event = $.event.fix(orgEvent);
+ event.type = 'mousewheel';
+
+ // Old school scrollwheel delta
+ if ( 'detail' in orgEvent ) { deltaY = orgEvent.detail * -1; }
+ if ( 'wheelDelta' in orgEvent ) { deltaY = orgEvent.wheelDelta; }
+ if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY; }
+ if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }
+
+ // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
+ if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
+ deltaX = deltaY * -1;
+ deltaY = 0;
+ }
+
+ // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
+ delta = deltaY === 0 ? deltaX : deltaY;
+
+ // New school wheel delta (wheel event)
+ if ( 'deltaY' in orgEvent ) {
+ deltaY = orgEvent.deltaY * -1;
+ delta = deltaY;
+ }
+ if ( 'deltaX' in orgEvent ) {
+ deltaX = orgEvent.deltaX;
+ if ( deltaY === 0 ) { delta = deltaX * -1; }
+ }
+
+ // No change actually happened, no reason to go any further
+ if ( deltaY === 0 && deltaX === 0 ) { return; }
+
+ // Need to convert lines and pages to pixels if we aren't already in pixels
+ // There are three delta modes:
+ // * deltaMode 0 is by pixels, nothing to do
+ // * deltaMode 1 is by lines
+ // * deltaMode 2 is by pages
+ if ( orgEvent.deltaMode === 1 ) {
+ var lineHeight = $.data(this, 'mousewheel-line-height');
+ delta *= lineHeight;
+ deltaY *= lineHeight;
+ deltaX *= lineHeight;
+ } else if ( orgEvent.deltaMode === 2 ) {
+ var pageHeight = $.data(this, 'mousewheel-page-height');
+ delta *= pageHeight;
+ deltaY *= pageHeight;
+ deltaX *= pageHeight;
+ }
+
+ // Store lowest absolute delta to normalize the delta values
+ absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );
+
+ if ( !lowestDelta || absDelta < lowestDelta ) {
+ lowestDelta = absDelta;
+
+ // Adjust older deltas if necessary
+ if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
+ lowestDelta /= 40;
+ }
+ }
+
+ // Adjust older deltas if necessary
+ if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
+ // Divide all the things by 40!
+ delta /= 40;
+ deltaX /= 40;
+ deltaY /= 40;
+ }
+
+ // Get a whole, normalized value for the deltas
+ delta = Math[ delta >= 1 ? 'floor' : 'ceil' ](delta / lowestDelta);
+ deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta);
+ deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta);
+
+ // Normalise offsetX and offsetY properties
+ if ( special.settings.normalizeOffset && this.getBoundingClientRect ) {
+ var boundingRect = this.getBoundingClientRect();
+ offsetX = event.clientX - boundingRect.left;
+ offsetY = event.clientY - boundingRect.top;
+ }
+
+ // Add information to the event object
+ event.deltaX = deltaX;
+ event.deltaY = deltaY;
+ event.deltaFactor = lowestDelta;
+ event.offsetX = offsetX;
+ event.offsetY = offsetY;
+ // Go ahead and set deltaMode to 0 since we converted to pixels
+ // Although this is a little odd since we overwrite the deltaX/Y
+ // properties with normalized deltas.
+ event.deltaMode = 0;
+
+ // Add event and delta to the front of the arguments
+ args.unshift(event, delta, deltaX, deltaY);
+
+ // Clearout lowestDelta after sometime to better
+ // handle multiple device types that give different
+ // a different lowestDelta
+ // Ex: trackpad = 3 and mouse wheel = 120
+ if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
+ nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);
+
+ return ($.event.dispatch || $.event.handle).apply(this, args);
+ }
+
+ function nullLowestDelta() {
+ lowestDelta = null;
+ }
+
+ function shouldAdjustOldDeltas(orgEvent, absDelta) {
+ // If this is an older event and the delta is divisable by 120,
+ // then we are assuming that the browser is treating this as an
+ // older mouse wheel event and that we should divide the deltas
+ // by 40 to try and get a more usable deltaFactor.
+ // Side note, this actually impacts the reported scroll distance
+ // in older browsers and can cause scrolling to be slower than native.
+ // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
+ return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0;
+ }
+
+}));
diff --git a/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.3.js b/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.3.js
deleted file mode 100644
index 9d65c716..00000000
--- a/src/_h5ai/client/js/lib/jquery.mousewheel-3.1.3.js
+++ /dev/null
@@ -1,117 +0,0 @@
-/*! Copyright (c) 2013 Brandon Aaron (http://brandonaaron.net)
- * Licensed under the MIT License (LICENSE.txt).
- *
- * Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
- * Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
- * Thanks to: Seamus Leahy for adding deltaX and deltaY
- *
- * Version: 3.1.3
- *
- * Requires: 1.2.2+
- */
-
-(function (factory) {
- if ( typeof define === 'function' && define.amd ) {
- // AMD. Register as an anonymous module.
- define(['jquery'], factory);
- } else if (typeof exports === 'object') {
- // Node/CommonJS style for Browserify
- module.exports = factory;
- } else {
- // Browser globals
- factory(jQuery);
- }
-}(function ($) {
-
- var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'];
- var toBind = 'onwheel' in document || document.documentMode >= 9 ? ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'];
- var lowestDelta, lowestDeltaXY;
-
- if ( $.event.fixHooks ) {
- for ( var i = toFix.length; i; ) {
- $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
- }
- }
-
- $.event.special.mousewheel = {
- setup: function() {
- if ( this.addEventListener ) {
- for ( var i = toBind.length; i; ) {
- this.addEventListener( toBind[--i], handler, false );
- }
- } else {
- this.onmousewheel = handler;
- }
- },
-
- teardown: function() {
- if ( this.removeEventListener ) {
- for ( var i = toBind.length; i; ) {
- this.removeEventListener( toBind[--i], handler, false );
- }
- } else {
- this.onmousewheel = null;
- }
- }
- };
-
- $.fn.extend({
- mousewheel: function(fn) {
- return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
- },
-
- unmousewheel: function(fn) {
- return this.unbind("mousewheel", fn);
- }
- });
-
-
- function handler(event) {
- var orgEvent = event || window.event,
- args = [].slice.call(arguments, 1),
- delta = 0,
- deltaX = 0,
- deltaY = 0,
- absDelta = 0,
- absDeltaXY = 0,
- fn;
- event = $.event.fix(orgEvent);
- event.type = "mousewheel";
-
- // Old school scrollwheel delta
- if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta; }
- if ( orgEvent.detail ) { delta = orgEvent.detail * -1; }
-
- // New school wheel delta (wheel event)
- if ( orgEvent.deltaY ) {
- deltaY = orgEvent.deltaY * -1;
- delta = deltaY;
- }
- if ( orgEvent.deltaX ) {
- deltaX = orgEvent.deltaX;
- delta = deltaX * -1;
- }
-
- // Webkit
- if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY; }
- if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = orgEvent.wheelDeltaX * -1; }
-
- // Look for lowest delta to normalize the delta values
- absDelta = Math.abs(delta);
- if ( !lowestDelta || absDelta < lowestDelta ) { lowestDelta = absDelta; }
- absDeltaXY = Math.max(Math.abs(deltaY), Math.abs(deltaX));
- if ( !lowestDeltaXY || absDeltaXY < lowestDeltaXY ) { lowestDeltaXY = absDeltaXY; }
-
- // Get a whole value for the deltas
- fn = delta > 0 ? 'floor' : 'ceil';
- delta = Math[fn](delta / lowestDelta);
- deltaX = Math[fn](deltaX / lowestDeltaXY);
- deltaY = Math[fn](deltaY / lowestDeltaXY);
-
- // Add event and delta to the front of the arguments
- args.unshift(event, delta, deltaX, deltaY);
-
- return ($.event.dispatch || $.event.handle).apply(this, args);
- }
-
-}));
diff --git a/src/_h5ai/client/js/lib/jquery.qrcode-0.4.js b/src/_h5ai/client/js/lib/jquery.qrcode-0.8.0.js
similarity index 78%
rename from src/_h5ai/client/js/lib/jquery.qrcode-0.4.js
rename to src/_h5ai/client/js/lib/jquery.qrcode-0.8.0.js
index 9619e759..022914df 100644
--- a/src/_h5ai/client/js/lib/jquery.qrcode-0.4.js
+++ b/src/_h5ai/client/js/lib/jquery.qrcode-0.8.0.js
@@ -1,207 +1,474 @@
-/*! jQuery.qrcode 0.4 - //larsjung.de/qrcode - MIT License */
-
-// Uses [QR Code Generator](http://www.d-project.com/qrcode/index.html) (MIT), appended to the end of this file.
-// Kudos to [jquery.qrcode.js](http://github.com/jeromeetienne/jquery-qrcode) (MIT).
-
-(function ($) {
- 'use strict';
-
- // Check if canvas is available in the browser (as Modernizr does)
- var canvasAvailable = (function () {
-
- var elem = document.createElement('canvas');
- return !!(elem.getContext && elem.getContext('2d'));
- }()),
-
- // Wrapper for the original QR code generator.
- createQr = function (typeNumber, correctLevel, text) {
-
- // `qrcode` is the single public function that will be defined by the `QR Code Generator`
- // at the end of the file.
- var qr = qrcode(typeNumber, correctLevel);
- qr.addData(text);
- qr.make();
-
- return qr;
- },
-
- // Returns a minimal QR code for the given text. Returns `null` if `text`
- // is to long to be encoded. At the moment it should work with up to 271 characters.
- createBestQr = function (text) {
-
- for (var type = 2; type <= 40; type += 1) {
- try {
- return createQr(type, 'L', text);
- } catch (err) {}
- }
-
- return null;
- },
-
- // Draws QR code to the given `canvas` and returns it.
- drawOnCanvas = function (canvas, settings) {
-
- // some shortcuts to improve compression
- var settings_text = settings.text,
- settings_left = settings.left,
- settings_top = settings.top,
- settings_width = settings.width,
- settings_height = settings.height,
- settings_color = settings.color,
- settings_bgColor = settings.bgColor,
-
- qr = createBestQr(settings_text),
- $canvas = $(canvas),
- ctx = $canvas[0].getContext('2d');
-
- if (settings_bgColor) {
- ctx.fillStyle = settings_bgColor;
- ctx.fillRect(settings_left, settings_top, settings_width, settings_height);
- }
-
- if (qr) {
- var moduleCount = qr.getModuleCount(),
- moduleWidth = settings_width / moduleCount,
- moduleHeight = settings_height / moduleCount,
- row, col;
-
- ctx.beginPath();
- for (row = 0; row < moduleCount; row += 1) {
- for (col = 0; col < moduleCount; col += 1) {
- if (qr.isDark(row, col)) {
- ctx.rect(settings_left + col * moduleWidth, settings_top + row * moduleHeight, moduleWidth, moduleHeight);
- }
- }
- }
- ctx.fillStyle = settings_color;
- ctx.fill();
- }
-
- return $canvas;
- },
-
- // Returns a `canvas` element representing the QR code for the given settings.
- createCanvas = function (settings) {
-
- var $canvas = $('
').attr('width', settings.width).attr('height', settings.height);
-
- return drawOnCanvas($canvas, settings);
- },
-
- // Returns a `div` element representing the QR code for the given settings.
- createDiv = function (settings) {
-
- // some shortcuts to improve compression
- var settings_text = settings.text,
- settings_width = settings.width,
- settings_height = settings.height,
- settings_color = settings.color,
- settings_bgColor = settings.bgColor,
- math_floor = Math.floor,
-
- qr = createBestQr(settings_text),
- $div = $('
').css({
- position: 'relative',
- left: 0,
- top: 0,
- padding: 0,
- margin: 0,
- width: settings_width,
- height: settings_height
- });
-
- if (settings_bgColor) {
- $div.css('background-color', settings_bgColor);
- }
-
- if (qr) {
- var moduleCount = qr.getModuleCount(),
- moduleWidth = math_floor(settings_width / moduleCount),
- moduleHeight = math_floor(settings_height / moduleCount),
- offsetLeft = math_floor(0.5 * (settings_width - moduleWidth * moduleCount)),
- offsetTop = math_floor(0.5 * (settings_height - moduleHeight * moduleCount)),
- row, col;
-
- for (row = 0; row < moduleCount; row += 1) {
- for (col = 0; col < moduleCount; col += 1) {
- if (qr.isDark(row, col)) {
- $('
')
- .css({
- left: offsetLeft + col * moduleWidth,
- top: offsetTop + row * moduleHeight
- })
- .appendTo($div);
- }
- }
- }
-
- $div.children()
- .css({
- position: 'absolute',
- padding: 0,
- margin: 0,
- width: moduleWidth,
- height: moduleHeight,
- 'background-color': settings_color
- });
- }
-
- return $div;
- },
-
- createHTML = function (settings) {
-
- return canvasAvailable && settings.render === 'canvas' ? createCanvas(settings) : createDiv(settings);
- },
-
- // Plugin
- // ======
-
- // Default settings
- // ----------------
- defaults = {
-
- // render method: `'canvas'` or `'div'`
- render: 'canvas',
-
- // left and top in pixel if drawn onto existing canvas
- left: 0,
- top: 0,
-
- // width and height in pixel
- width: 256,
- height: 256,
-
- // code color
- color: '#000',
-
- // background color, `null` for transparent background
- bgColor: null,
-
- // the encoded text
- text: 'no text'
- };
-
- // Register the plugin
- // -------------------
- $.fn.qrcode = function(options) {
-
- var settings = $.extend({}, defaults, options);
-
- return this.each(function () {
-
- if (this.nodeName.toLowerCase() === 'canvas') {
- drawOnCanvas(this, settings);
- } else {
- $(this).append(createHTML(settings));
- }
- });
- };
-
- // jQuery.qrcode plug in code ends here
-
- // QR Code Generator
- // =================
+/*! jQuery.qrcode 0.8.0 - //larsjung.de/qrcode - MIT License */
+
+// Uses [QR Code Generator](http://www.d-project.com/qrcode/index.html) (MIT), appended to the end of this file.
+// Kudos to [jquery.qrcode.js](http://github.com/jeromeetienne/jquery-qrcode) (MIT).
+
+(function ($) {
+ 'use strict';
+
+
+ // Wrapper for the original QR code generator.
+ var QRCode = function (text, level, version, quiet) {
+
+ // `qrcode` is the single public function that will be defined by the `QR Code Generator`
+ // at the end of the file.
+ var qr = qrcode(version, level);
+ qr.addData(text);
+ qr.make();
+
+ quiet = quiet || 0;
+
+ var qrModuleCount = qr.getModuleCount(),
+ quietModuleCount = qr.getModuleCount() + 2*quiet,
+ isDark = function (row, col) {
+
+ row -= quiet;
+ col -= quiet;
+
+ if (row < 0 || row >= qrModuleCount || col < 0 || col >= qrModuleCount) {
+ return false;
+ }
+
+ return qr.isDark(row, col);
+ },
+ addBlank = function (l, t, r, b) {
+
+ var prevIsDark = this.isDark,
+ moduleSize = 1 / quietModuleCount;
+
+ this.isDark = function (row, col) {
+
+ var ml = col * moduleSize,
+ mt = row * moduleSize,
+ mr = ml + moduleSize,
+ mb = mt + moduleSize;
+
+ return prevIsDark(row, col) && (l > mr || ml > r || t > mb || mt > b);
+ };
+ };
+
+ this.text = text;
+ this.level = level;
+ this.version = version;
+ this.moduleCount = quietModuleCount;
+ this.isDark = isDark;
+ this.addBlank = addBlank;
+ },
+
+ // Check if canvas is available in the browser (as Modernizr does)
+ canvasAvailable = (function () {
+
+ var elem = document.createElement('canvas');
+ return !!(elem.getContext && elem.getContext('2d'));
+ }()),
+
+ arcToAvailable = Object.prototype.toString.call(window.opera) !== '[object Opera]',
+
+ // Returns a minimal QR code for the given text starting with version `minVersion`.
+ // Returns `null` if `text` is too long to be encoded in `maxVersion`.
+ createQRCode = function (text, level, minVersion, maxVersion, quiet) {
+
+ minVersion = Math.max(1, minVersion || 1);
+ maxVersion = Math.min(40, maxVersion || 40);
+ for (var version = minVersion; version <= maxVersion; version += 1) {
+ try {
+ return new QRCode(text, level, version, quiet);
+ } catch (err) {}
+ }
+ },
+
+ drawBackgroundLabel = function (qr, context, settings) {
+
+ var size = settings.size,
+ font = "bold " + (settings.mSize * size) + "px " + settings.fontname,
+ ctx = $('
')[0].getContext("2d");
+
+ ctx.font = font;
+
+ var w = ctx.measureText(settings.label).width,
+ sh = settings.mSize,
+ sw = w / size,
+ sl = (1 - sw) * settings.mPosX,
+ st = (1 - sh) * settings.mPosY,
+ sr = sl + sw,
+ sb = st + sh,
+ pad = 0.01;
+
+ if (settings.mode === 1) {
+ // Strip
+ qr.addBlank(0, st - pad, size, sb + pad);
+ } else {
+ // Box
+ qr.addBlank(sl - pad, st - pad, sr + pad, sb + pad);
+ }
+
+ context.fillStyle = settings.fontcolor;
+ context.font = font;
+ context.fillText(settings.label, sl*size, st*size + 0.75 * settings.mSize * size);
+ },
+
+ drawBackgroundImage = function (qr, context, settings) {
+
+ var size = settings.size,
+ w = settings.image.naturalWidth || 1,
+ h = settings.image.naturalHeight || 1,
+ sh = settings.mSize,
+ sw = sh * w / h,
+ sl = (1 - sw) * settings.mPosX,
+ st = (1 - sh) * settings.mPosY,
+ sr = sl + sw,
+ sb = st + sh,
+ pad = 0.01;
+
+ if (settings.mode === 3) {
+ // Strip
+ qr.addBlank(0, st - pad, size, sb + pad);
+ } else {
+ // Box
+ qr.addBlank(sl - pad, st - pad, sr + pad, sb + pad);
+ }
+
+ context.drawImage(settings.image, sl*size, st*size, sw*size, sh*size);
+ },
+
+ drawBackground = function (qr, context, settings) {
+
+ if ($(settings.background).is('img')) {
+ context.drawImage(settings.background, 0, 0, settings.size, settings.size);
+ } else if (settings.background) {
+ context.fillStyle = settings.background;
+ context.fillRect(settings.left, settings.top, settings.size, settings.size);
+ }
+
+ var mode = settings.mode;
+ if (mode === 1 || mode === 2) {
+ drawBackgroundLabel(qr, context, settings);
+ } else if (mode === 3 || mode === 4) {
+ drawBackgroundImage(qr, context, settings);
+ }
+ },
+
+ drawModuleDefault = function (qr, context, settings, left, top, width, row, col) {
+
+ if (qr.isDark(row, col)) {
+ context.rect(left, top, width, width);
+ }
+ },
+
+ drawModuleRoundedDark = function (ctx, l, t, r, b, rad, nw, ne, se, sw) {
+
+ if (nw) {
+ ctx.moveTo(l + rad, t);
+ } else {
+ ctx.moveTo(l, t);
+ }
+
+ if (ne) {
+ ctx.lineTo(r - rad, t);
+ ctx.arcTo(r, t, r, b, rad);
+ } else {
+ ctx.lineTo(r, t);
+ }
+
+ if (se) {
+ ctx.lineTo(r, b - rad);
+ ctx.arcTo(r, b, l, b, rad);
+ } else {
+ ctx.lineTo(r, b);
+ }
+
+ if (sw) {
+ ctx.lineTo(l + rad, b);
+ ctx.arcTo(l, b, l, t, rad);
+ } else {
+ ctx.lineTo(l, b);
+ }
+
+ if (nw) {
+ ctx.lineTo(l, t + rad);
+ ctx.arcTo(l, t, r, t, rad);
+ } else {
+ ctx.lineTo(l, t);
+ }
+ },
+
+ drawModuleRoundendLight = function (ctx, l, t, r, b, rad, nw, ne, se, sw) {
+
+ if (nw) {
+ ctx.moveTo(l + rad, t);
+ ctx.lineTo(l, t);
+ ctx.lineTo(l, t + rad);
+ ctx.arcTo(l, t, l + rad, t, rad);
+ }
+
+ if (ne) {
+ ctx.moveTo(r - rad, t);
+ ctx.lineTo(r, t);
+ ctx.lineTo(r, t + rad);
+ ctx.arcTo(r, t, r - rad, t, rad);
+ }
+
+ if (se) {
+ ctx.moveTo(r - rad, b);
+ ctx.lineTo(r, b);
+ ctx.lineTo(r, b - rad);
+ ctx.arcTo(r, b, r - rad, b, rad);
+ }
+
+ if (sw) {
+ ctx.moveTo(l + rad, b);
+ ctx.lineTo(l, b);
+ ctx.lineTo(l, b - rad);
+ ctx.arcTo(l, b, l + rad, b, rad);
+ }
+ },
+
+ drawModuleRounded = function (qr, context, settings, left, top, width, row, col) {
+
+ var isDark = qr.isDark,
+ right = left + width,
+ bottom = top + width,
+ radius = settings.radius * width,
+ rowT = row - 1,
+ rowB = row + 1,
+ colL = col - 1,
+ colR = col + 1,
+ center = isDark(row, col),
+ northwest = isDark(rowT, colL),
+ north = isDark(rowT, col),
+ northeast = isDark(rowT, colR),
+ east = isDark(row, colR),
+ southeast = isDark(rowB, colR),
+ south = isDark(rowB, col),
+ southwest = isDark(rowB, colL),
+ west = isDark(row, colL);
+
+ if (center) {
+ drawModuleRoundedDark(context, left, top, right, bottom, radius, !north && !west, !north && !east, !south && !east, !south && !west);
+ } else {
+ drawModuleRoundendLight(context, left, top, right, bottom, radius, north && west && northwest, north && east && northeast, south && east && southeast, south && west && southwest);
+ }
+ },
+
+ drawModules = function (qr, context, settings) {
+
+ var moduleCount = qr.moduleCount,
+ moduleSize = settings.size / moduleCount,
+ fn = drawModuleDefault,
+ row, col;
+
+ if (arcToAvailable && settings.radius > 0 && settings.radius <= 0.5) {
+ fn = drawModuleRounded;
+ }
+
+ context.beginPath();
+ for (row = 0; row < moduleCount; row += 1) {
+ for (col = 0; col < moduleCount; col += 1) {
+
+ var l = settings.left + col * moduleSize,
+ t = settings.top + row * moduleSize,
+ w = moduleSize;
+
+ fn(qr, context, settings, l, t, w, row, col);
+ }
+ }
+ if ($(settings.fill).is('img')) {
+ context.strokeStyle = 'rgba(0,0,0,0.5)';
+ context.lineWidth = 2;
+ context.stroke();
+ var prev = context.globalCompositeOperation;
+ context.globalCompositeOperation = "destination-out";
+ context.fill();
+ context.globalCompositeOperation = prev;
+
+ context.clip();
+ context.drawImage(settings.fill, 0, 0, settings.size, settings.size);
+ context.restore();
+ } else {
+ context.fillStyle = settings.fill;
+ context.fill();
+ }
+ },
+
+ // Draws QR code to the given `canvas` and returns it.
+ drawOnCanvas = function (canvas, settings) {
+
+ var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
+ if (!qr) {
+ return null;
+ }
+
+ var $canvas = $(canvas).data('qrcode', qr),
+ context = $canvas[0].getContext('2d');
+
+ drawBackground(qr, context, settings);
+ drawModules(qr, context, settings);
+
+ return $canvas;
+ },
+
+ // Returns a `canvas` element representing the QR code for the given settings.
+ createCanvas = function (settings) {
+
+ var $canvas = $('
').attr('width', settings.size).attr('height', settings.size);
+ return drawOnCanvas($canvas, settings);
+ },
+
+ // Returns an `image` element representing the QR code for the given settings.
+ createImage = function (settings) {
+
+ return $('
').attr('src', createCanvas(settings)[0].toDataURL('image/png'));
+ },
+
+ // Returns a `div` element representing the QR code for the given settings.
+ createDiv = function (settings) {
+
+ var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
+ if (!qr) {
+ return null;
+ }
+
+ // some shortcuts to improve compression
+ var settings_size = settings.size,
+ settings_bgColor = settings.background,
+ math_floor = Math.floor,
+
+ moduleCount = qr.moduleCount,
+ moduleSize = math_floor(settings_size / moduleCount),
+ offset = math_floor(0.5 * (settings_size - moduleSize * moduleCount)),
+
+ row, col,
+
+ containerCSS = {
+ position: 'relative',
+ left: 0,
+ top: 0,
+ padding: 0,
+ margin: 0,
+ width: settings_size,
+ height: settings_size
+ },
+ darkCSS = {
+ position: 'absolute',
+ padding: 0,
+ margin: 0,
+ width: moduleSize,
+ height: moduleSize,
+ 'background-color': settings.fill
+ },
+
+ $div = $('
').data('qrcode', qr).css(containerCSS);
+
+ if (settings_bgColor) {
+ $div.css('background-color', settings_bgColor);
+ }
+
+ for (row = 0; row < moduleCount; row += 1) {
+ for (col = 0; col < moduleCount; col += 1) {
+ if (qr.isDark(row, col)) {
+ $('
')
+ .css(darkCSS)
+ .css({
+ left: offset + col * moduleSize,
+ top: offset + row * moduleSize
+ })
+ .appendTo($div);
+ }
+ }
+ }
+
+ return $div;
+ },
+
+ createHTML = function (settings) {
+
+ if (canvasAvailable && settings.render === 'canvas') {
+ return createCanvas(settings);
+ } else if (canvasAvailable && settings.render === 'image') {
+ return createImage(settings);
+ }
+
+ return createDiv(settings);
+ },
+
+ // Plugin
+ // ======
+
+ // Default settings
+ // ----------------
+ defaults = {
+
+ // render method: `'canvas'`, `'image'` or `'div'`
+ render: 'canvas',
+
+ // version range somewhere in 1 .. 40
+ minVersion: 1,
+ maxVersion: 40,
+
+ // error correction level: `'L'`, `'M'`, `'Q'` or `'H'`
+ ecLevel: 'L',
+
+ // offset in pixel if drawn onto existing canvas
+ left: 0,
+ top: 0,
+
+ // size in pixel
+ size: 200,
+
+ // code color or image element
+ fill: '#000',
+
+ // background color or image element, `null` for transparent background
+ background: null,
+
+ // content
+ text: 'no text',
+
+ // corner radius relative to module width: 0.0 .. 0.5
+ radius: 0,
+
+ // quiet zone in modules
+ quiet: 0,
+
+ // modes
+ // 0: normal
+ // 1: label strip
+ // 2: label box
+ // 3: image strip
+ // 4: image box
+ mode: 0,
+
+ mSize: 0.1,
+ mPosX: 0.5,
+ mPosY: 0.5,
+
+ label: 'no label',
+ fontname: 'sans',
+ fontcolor: '#000',
+
+ image: null
+ };
+
+ // Register the plugin
+ // -------------------
+ $.fn.qrcode = function(options) {
+
+ var settings = $.extend({}, defaults, options);
+
+ return this.each(function () {
+
+ if (this.nodeName.toLowerCase() === 'canvas') {
+ drawOnCanvas(this, settings);
+ } else {
+ $(this).append(createHTML(settings));
+ }
+ });
+ };
+
+ // jQuery.qrcode plug in code ends here
+
+ // QR Code Generator
+ // =================
//---------------------------------------------------------------------
//
// QR Code Generator for JavaScript
@@ -1618,5 +1885,5 @@
// returns qrcode function.
return qrcode;
}();
-
-}(jQuery));
+
+}(jQuery));
diff --git a/src/_h5ai/client/js/lib/json2-2014-02-04.js b/src/_h5ai/client/js/lib/json2-2014-02-04.js
deleted file mode 100644
index deb88ec9..00000000
--- a/src/_h5ai/client/js/lib/json2-2014-02-04.js
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- json2.js
- 2014-02-04
-
- Public Domain.
-
- NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
-
- See http://www.JSON.org/js.html
-
-
- This code should be minified before deployment.
- See http://javascript.crockford.com/jsmin.html
-
- USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
- NOT CONTROL.
-
-
- This file creates a global JSON object containing two methods: stringify
- and parse.
-
- JSON.stringify(value, replacer, space)
- value any JavaScript value, usually an object or array.
-
- replacer an optional parameter that determines how object
- values are stringified for objects. It can be a
- function or an array of strings.
-
- space an optional parameter that specifies the indentation
- of nested structures. If it is omitted, the text will
- be packed without extra whitespace. If it is a number,
- it will specify the number of spaces to indent at each
- level. If it is a string (such as '\t' or ' '),
- it contains the characters used to indent at each level.
-
- This method produces a JSON text from a JavaScript value.
-
- When an object value is found, if the object contains a toJSON
- method, its toJSON method will be called and the result will be
- stringified. A toJSON method does not serialize: it returns the
- value represented by the name/value pair that should be serialized,
- or undefined if nothing should be serialized. The toJSON method
- will be passed the key associated with the value, and this will be
- bound to the value
-
- For example, this would serialize Dates as ISO strings.
-
- Date.prototype.toJSON = function (key) {
- function f(n) {
- // Format integers to have at least two digits.
- return n < 10 ? '0' + n : n;
- }
-
- return this.getUTCFullYear() + '-' +
- f(this.getUTCMonth() + 1) + '-' +
- f(this.getUTCDate()) + 'T' +
- f(this.getUTCHours()) + ':' +
- f(this.getUTCMinutes()) + ':' +
- f(this.getUTCSeconds()) + 'Z';
- };
-
- You can provide an optional replacer method. It will be passed the
- key and value of each member, with this bound to the containing
- object. The value that is returned from your method will be
- serialized. If your method returns undefined, then the member will
- be excluded from the serialization.
-
- If the replacer parameter is an array of strings, then it will be
- used to select the members to be serialized. It filters the results
- such that only members with keys listed in the replacer array are
- stringified.
-
- Values that do not have JSON representations, such as undefined or
- functions, will not be serialized. Such values in objects will be
- dropped; in arrays they will be replaced with null. You can use
- a replacer function to replace those with JSON values.
- JSON.stringify(undefined) returns undefined.
-
- The optional space parameter produces a stringification of the
- value that is filled with line breaks and indentation to make it
- easier to read.
-
- If the space parameter is a non-empty string, then that string will
- be used for indentation. If the space parameter is a number, then
- the indentation will be that many spaces.
-
- Example:
-
- text = JSON.stringify(['e', {pluribus: 'unum'}]);
- // text is '["e",{"pluribus":"unum"}]'
-
-
- text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
- // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
-
- text = JSON.stringify([new Date()], function (key, value) {
- return this[key] instanceof Date ?
- 'Date(' + this[key] + ')' : value;
- });
- // text is '["Date(---current time---)"]'
-
-
- JSON.parse(text, reviver)
- This method parses a JSON text to produce an object or array.
- It can throw a SyntaxError exception.
-
- The optional reviver parameter is a function that can filter and
- transform the results. It receives each of the keys and values,
- and its return value is used instead of the original value.
- If it returns what it received, then the structure is not modified.
- If it returns undefined then the member is deleted.
-
- Example:
-
- // Parse the text. Values that look like ISO date strings will
- // be converted to Date objects.
-
- myData = JSON.parse(text, function (key, value) {
- var a;
- if (typeof value === 'string') {
- a =
-/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
- if (a) {
- return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
- +a[5], +a[6]));
- }
- }
- return value;
- });
-
- myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
- var d;
- if (typeof value === 'string' &&
- value.slice(0, 5) === 'Date(' &&
- value.slice(-1) === ')') {
- d = new Date(value.slice(5, -1));
- if (d) {
- return d;
- }
- }
- return value;
- });
-
-
- This is a reference implementation. You are free to copy, modify, or
- redistribute.
-*/
-
-/*jslint evil: true, regexp: true */
-
-/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
- call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
- getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
- lastIndex, length, parse, prototype, push, replace, slice, stringify,
- test, toJSON, toString, valueOf
-*/
-
-
-// Create a JSON object only if one does not already exist. We create the
-// methods in a closure to avoid creating global variables.
-
-if (typeof JSON !== 'object') {
- JSON = {};
-}
-
-(function () {
- 'use strict';
-
- function f(n) {
- // Format integers to have at least two digits.
- return n < 10 ? '0' + n : n;
- }
-
- if (typeof Date.prototype.toJSON !== 'function') {
-
- Date.prototype.toJSON = function () {
-
- return isFinite(this.valueOf())
- ? this.getUTCFullYear() + '-' +
- f(this.getUTCMonth() + 1) + '-' +
- f(this.getUTCDate()) + 'T' +
- f(this.getUTCHours()) + ':' +
- f(this.getUTCMinutes()) + ':' +
- f(this.getUTCSeconds()) + 'Z'
- : null;
- };
-
- String.prototype.toJSON =
- Number.prototype.toJSON =
- Boolean.prototype.toJSON = function () {
- return this.valueOf();
- };
- }
-
- var cx,
- escapable,
- gap,
- indent,
- meta,
- rep;
-
-
- function quote(string) {
-
-// If the string contains no control characters, no quote characters, and no
-// backslash characters, then we can safely slap some quotes around it.
-// Otherwise we must also replace the offending characters with safe escape
-// sequences.
-
- escapable.lastIndex = 0;
- return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
- var c = meta[a];
- return typeof c === 'string'
- ? c
- : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
- }) + '"' : '"' + string + '"';
- }
-
-
- function str(key, holder) {
-
-// Produce a string from holder[key].
-
- var i, // The loop counter.
- k, // The member key.
- v, // The member value.
- length,
- mind = gap,
- partial,
- value = holder[key];
-
-// If the value has a toJSON method, call it to obtain a replacement value.
-
- if (value && typeof value === 'object' &&
- typeof value.toJSON === 'function') {
- value = value.toJSON(key);
- }
-
-// If we were called with a replacer function, then call the replacer to
-// obtain a replacement value.
-
- if (typeof rep === 'function') {
- value = rep.call(holder, key, value);
- }
-
-// What happens next depends on the value's type.
-
- switch (typeof value) {
- case 'string':
- return quote(value);
-
- case 'number':
-
-// JSON numbers must be finite. Encode non-finite numbers as null.
-
- return isFinite(value) ? String(value) : 'null';
-
- case 'boolean':
- case 'null':
-
-// If the value is a boolean or null, convert it to a string. Note:
-// typeof null does not produce 'null'. The case is included here in
-// the remote chance that this gets fixed someday.
-
- return String(value);
-
-// If the type is 'object', we might be dealing with an object or an array or
-// null.
-
- case 'object':
-
-// Due to a specification blunder in ECMAScript, typeof null is 'object',
-// so watch out for that case.
-
- if (!value) {
- return 'null';
- }
-
-// Make an array to hold the partial results of stringifying this object value.
-
- gap += indent;
- partial = [];
-
-// Is the value an array?
-
- if (Object.prototype.toString.apply(value) === '[object Array]') {
-
-// The value is an array. Stringify every element. Use null as a placeholder
-// for non-JSON values.
-
- length = value.length;
- for (i = 0; i < length; i += 1) {
- partial[i] = str(i, value) || 'null';
- }
-
-// Join all of the elements together, separated with commas, and wrap them in
-// brackets.
-
- v = partial.length === 0
- ? '[]'
- : gap
- ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']'
- : '[' + partial.join(',') + ']';
- gap = mind;
- return v;
- }
-
-// If the replacer is an array, use it to select the members to be stringified.
-
- if (rep && typeof rep === 'object') {
- length = rep.length;
- for (i = 0; i < length; i += 1) {
- if (typeof rep[i] === 'string') {
- k = rep[i];
- v = str(k, value);
- if (v) {
- partial.push(quote(k) + (gap ? ': ' : ':') + v);
- }
- }
- }
- } else {
-
-// Otherwise, iterate through all of the keys in the object.
-
- for (k in value) {
- if (Object.prototype.hasOwnProperty.call(value, k)) {
- v = str(k, value);
- if (v) {
- partial.push(quote(k) + (gap ? ': ' : ':') + v);
- }
- }
- }
- }
-
-// Join all of the member texts together, separated with commas,
-// and wrap them in braces.
-
- v = partial.length === 0
- ? '{}'
- : gap
- ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}'
- : '{' + partial.join(',') + '}';
- gap = mind;
- return v;
- }
- }
-
-// If the JSON object does not yet have a stringify method, give it one.
-
- if (typeof JSON.stringify !== 'function') {
- escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
- meta = { // table of character substitutions
- '\b': '\\b',
- '\t': '\\t',
- '\n': '\\n',
- '\f': '\\f',
- '\r': '\\r',
- '"' : '\\"',
- '\\': '\\\\'
- };
- JSON.stringify = function (value, replacer, space) {
-
-// The stringify method takes a value and an optional replacer, and an optional
-// space parameter, and returns a JSON text. The replacer can be a function
-// that can replace values, or an array of strings that will select the keys.
-// A default replacer method can be provided. Use of the space parameter can
-// produce text that is more easily readable.
-
- var i;
- gap = '';
- indent = '';
-
-// If the space parameter is a number, make an indent string containing that
-// many spaces.
-
- if (typeof space === 'number') {
- for (i = 0; i < space; i += 1) {
- indent += ' ';
- }
-
-// If the space parameter is a string, it will be used as the indent string.
-
- } else if (typeof space === 'string') {
- indent = space;
- }
-
-// If there is a replacer, it must be a function or an array.
-// Otherwise, throw an error.
-
- rep = replacer;
- if (replacer && typeof replacer !== 'function' &&
- (typeof replacer !== 'object' ||
- typeof replacer.length !== 'number')) {
- throw new Error('JSON.stringify');
- }
-
-// Make a fake root object containing our value under the key of ''.
-// Return the result of stringifying the value.
-
- return str('', {'': value});
- };
- }
-
-
-// If the JSON object does not yet have a parse method, give it one.
-
- if (typeof JSON.parse !== 'function') {
- cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
- JSON.parse = function (text, reviver) {
-
-// The parse method takes a text and an optional reviver function, and returns
-// a JavaScript value if the text is a valid JSON text.
-
- var j;
-
- function walk(holder, key) {
-
-// The walk method is used to recursively walk the resulting structure so
-// that modifications can be made.
-
- var k, v, value = holder[key];
- if (value && typeof value === 'object') {
- for (k in value) {
- if (Object.prototype.hasOwnProperty.call(value, k)) {
- v = walk(value, k);
- if (v !== undefined) {
- value[k] = v;
- } else {
- delete value[k];
- }
- }
- }
- }
- return reviver.call(holder, key, value);
- }
-
-
-// Parsing happens in four stages. In the first stage, we replace certain
-// Unicode characters with escape sequences. JavaScript handles many characters
-// incorrectly, either silently deleting them, or treating them as line endings.
-
- text = String(text);
- cx.lastIndex = 0;
- if (cx.test(text)) {
- text = text.replace(cx, function (a) {
- return '\\u' +
- ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
- });
- }
-
-// In the second stage, we run the text against regular expressions that look
-// for non-JSON patterns. We are especially concerned with '()' and 'new'
-// because they can cause invocation, and '=' because it can cause mutation.
-// But just to be safe, we want to reject all unexpected forms.
-
-// We split the second stage into 4 regexp operations in order to work around
-// crippling inefficiencies in IE's and Safari's regexp engines. First we
-// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
-// replace all simple value tokens with ']' characters. Third, we delete all
-// open brackets that follow a colon or comma or that begin the text. Finally,
-// we look to see that the remaining characters are only whitespace or ']' or
-// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
-
- if (/^[\],:{}\s]*$/
- .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
- .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
- .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
-
-// In the third stage we use the eval function to compile the text into a
-// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
-// in JavaScript: it can begin a block or an object literal. We wrap the text
-// in parens to eliminate the ambiguity.
-
- j = eval('(' + text + ')');
-
-// In the optional fourth stage, we recursively walk the new structure, passing
-// each name/value pair to a reviver function for possible transformation.
-
- return typeof reviver === 'function'
- ? walk({'': j}, '')
- : j;
- }
-
-// If the text is not JSON parseable, then a SyntaxError is thrown.
-
- throw new SyntaxError('JSON.parse');
- };
- }
-}());
diff --git a/src/_h5ai/client/js/lib/lodash-2.4.1.js b/src/_h5ai/client/js/lib/lodash-2.4.1.js
new file mode 100644
index 00000000..d653e5ae
--- /dev/null
+++ b/src/_h5ai/client/js/lib/lodash-2.4.1.js
@@ -0,0 +1,6785 @@
+/**
+ * @license
+ * Lo-Dash 2.4.1 (Custom Build)
+ * Build: `lodash modern -o ./dist/lodash.js`
+ * Copyright 2012-2013 The Dojo Foundation
+ * Based on Underscore.js 1.5.2
+ * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license
+ */
+;(function() {
+
+ /** Used as a safe reference for `undefined` in pre ES5 environments */
+ var undefined;
+
+ /** Used to pool arrays and objects used internally */
+ var arrayPool = [],
+ objectPool = [];
+
+ /** Used to generate unique IDs */
+ var idCounter = 0;
+
+ /** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
+ var keyPrefix = +new Date + '';
+
+ /** Used as the size when optimizations are enabled for large arrays */
+ var largeArraySize = 75;
+
+ /** Used as the max size of the `arrayPool` and `objectPool` */
+ var maxPoolSize = 40;
+
+ /** Used to detect and test whitespace */
+ var whitespace = (
+ // whitespace
+ ' \t\x0B\f\xA0\ufeff' +
+
+ // line terminators
+ '\n\r\u2028\u2029' +
+
+ // unicode category "Zs" space separators
+ '\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
+ );
+
+ /** Used to match empty string literals in compiled template source */
+ var reEmptyStringLeading = /\b__p \+= '';/g,
+ reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+ reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+ /**
+ * Used to match ES6 template delimiters
+ * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
+ */
+ var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+ /** Used to match regexp flags from their coerced string values */
+ var reFlags = /\w*$/;
+
+ /** Used to detected named functions */
+ var reFuncName = /^\s*function[ \n\r\t]+\w/;
+
+ /** Used to match "interpolate" template delimiters */
+ var reInterpolate = /<%=([\s\S]+?)%>/g;
+
+ /** Used to match leading whitespace and zeros to be removed */
+ var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
+
+ /** Used to ensure capturing order of template delimiters */
+ var reNoMatch = /($^)/;
+
+ /** Used to detect functions containing a `this` reference */
+ var reThis = /\bthis\b/;
+
+ /** Used to match unescaped characters in compiled string literals */
+ var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
+
+ /** Used to assign default `context` object properties */
+ var contextProps = [
+ 'Array', 'Boolean', 'Date', 'Function', 'Math', 'Number', 'Object',
+ 'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
+ 'parseInt', 'setTimeout'
+ ];
+
+ /** Used to make template sourceURLs easier to identify */
+ var templateCounter = 0;
+
+ /** `Object#toString` result shortcuts */
+ var argsClass = '[object Arguments]',
+ arrayClass = '[object Array]',
+ boolClass = '[object Boolean]',
+ dateClass = '[object Date]',
+ funcClass = '[object Function]',
+ numberClass = '[object Number]',
+ objectClass = '[object Object]',
+ regexpClass = '[object RegExp]',
+ stringClass = '[object String]';
+
+ /** Used to identify object classifications that `_.clone` supports */
+ var cloneableClasses = {};
+ cloneableClasses[funcClass] = false;
+ cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
+ cloneableClasses[boolClass] = cloneableClasses[dateClass] =
+ cloneableClasses[numberClass] = cloneableClasses[objectClass] =
+ cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
+
+ /** Used as an internal `_.debounce` options object */
+ var debounceOptions = {
+ 'leading': false,
+ 'maxWait': 0,
+ 'trailing': false
+ };
+
+ /** Used as the property descriptor for `__bindData__` */
+ var descriptor = {
+ 'configurable': false,
+ 'enumerable': false,
+ 'value': null,
+ 'writable': false
+ };
+
+ /** Used to determine if values are of the language type Object */
+ var objectTypes = {
+ 'boolean': false,
+ 'function': true,
+ 'object': true,
+ 'number': false,
+ 'string': false,
+ 'undefined': false
+ };
+
+ /** Used to escape characters for inclusion in compiled string literals */
+ var stringEscapes = {
+ '\\': '\\',
+ "'": "'",
+ '\n': 'n',
+ '\r': 'r',
+ '\t': 't',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ /** Used as a reference to the global object */
+ var root = (objectTypes[typeof window] && window) || this;
+
+ /** Detect free variable `exports` */
+ var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+ /** Detect free variable `module` */
+ var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+
+ /** Detect the popular CommonJS extension `module.exports` */
+ var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+
+ /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
+ var freeGlobal = objectTypes[typeof global] && global;
+ if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
+ root = freeGlobal;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * The base implementation of `_.indexOf` without support for binary searches
+ * or `fromIndex` constraints.
+ *
+ * @private
+ * @param {Array} array The array to search.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {number} Returns the index of the matched value or `-1`.
+ */
+ function baseIndexOf(array, value, fromIndex) {
+ var index = (fromIndex || 0) - 1,
+ length = array ? array.length : 0;
+
+ while (++index < length) {
+ if (array[index] === value) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * An implementation of `_.contains` for cache objects that mimics the return
+ * signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
+ *
+ * @private
+ * @param {Object} cache The cache object to inspect.
+ * @param {*} value The value to search for.
+ * @returns {number} Returns `0` if `value` is found, else `-1`.
+ */
+ function cacheIndexOf(cache, value) {
+ var type = typeof value;
+ cache = cache.cache;
+
+ if (type == 'boolean' || value == null) {
+ return cache[value] ? 0 : -1;
+ }
+ if (type != 'number' && type != 'string') {
+ type = 'object';
+ }
+ var key = type == 'number' ? value : keyPrefix + value;
+ cache = (cache = cache[type]) && cache[key];
+
+ return type == 'object'
+ ? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
+ : (cache ? 0 : -1);
+ }
+
+ /**
+ * Adds a given value to the corresponding cache object.
+ *
+ * @private
+ * @param {*} value The value to add to the cache.
+ */
+ function cachePush(value) {
+ var cache = this.cache,
+ type = typeof value;
+
+ if (type == 'boolean' || value == null) {
+ cache[value] = true;
+ } else {
+ if (type != 'number' && type != 'string') {
+ type = 'object';
+ }
+ var key = type == 'number' ? value : keyPrefix + value,
+ typeCache = cache[type] || (cache[type] = {});
+
+ if (type == 'object') {
+ (typeCache[key] || (typeCache[key] = [])).push(value);
+ } else {
+ typeCache[key] = true;
+ }
+ }
+ }
+
+ /**
+ * Used by `_.max` and `_.min` as the default callback when a given
+ * collection is a string value.
+ *
+ * @private
+ * @param {string} value The character to inspect.
+ * @returns {number} Returns the code unit of given character.
+ */
+ function charAtCallback(value) {
+ return value.charCodeAt(0);
+ }
+
+ /**
+ * Used by `sortBy` to compare transformed `collection` elements, stable sorting
+ * them in ascending order.
+ *
+ * @private
+ * @param {Object} a The object to compare to `b`.
+ * @param {Object} b The object to compare to `a`.
+ * @returns {number} Returns the sort order indicator of `1` or `-1`.
+ */
+ function compareAscending(a, b) {
+ var ac = a.criteria,
+ bc = b.criteria,
+ index = -1,
+ length = ac.length;
+
+ while (++index < length) {
+ var value = ac[index],
+ other = bc[index];
+
+ if (value !== other) {
+ if (value > other || typeof value == 'undefined') {
+ return 1;
+ }
+ if (value < other || typeof other == 'undefined') {
+ return -1;
+ }
+ }
+ }
+ // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+ // that causes it, under certain circumstances, to return the same value for
+ // `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
+ //
+ // This also ensures a stable sort in V8 and other engines.
+ // See http://code.google.com/p/v8/issues/detail?id=90
+ return a.index - b.index;
+ }
+
+ /**
+ * Creates a cache object to optimize linear searches of large arrays.
+ *
+ * @private
+ * @param {Array} [array=[]] The array to search.
+ * @returns {null|Object} Returns the cache object or `null` if caching should not be used.
+ */
+ function createCache(array) {
+ var index = -1,
+ length = array.length,
+ first = array[0],
+ mid = array[(length / 2) | 0],
+ last = array[length - 1];
+
+ if (first && typeof first == 'object' &&
+ mid && typeof mid == 'object' && last && typeof last == 'object') {
+ return false;
+ }
+ var cache = getObject();
+ cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
+
+ var result = getObject();
+ result.array = array;
+ result.cache = cache;
+ result.push = cachePush;
+
+ while (++index < length) {
+ result.push(array[index]);
+ }
+ return result;
+ }
+
+ /**
+ * Used by `template` to escape characters for inclusion in compiled
+ * string literals.
+ *
+ * @private
+ * @param {string} match The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ function escapeStringChar(match) {
+ return '\\' + stringEscapes[match];
+ }
+
+ /**
+ * Gets an array from the array pool or creates a new one if the pool is empty.
+ *
+ * @private
+ * @returns {Array} The array from the pool.
+ */
+ function getArray() {
+ return arrayPool.pop() || [];
+ }
+
+ /**
+ * Gets an object from the object pool or creates a new one if the pool is empty.
+ *
+ * @private
+ * @returns {Object} The object from the pool.
+ */
+ function getObject() {
+ return objectPool.pop() || {
+ 'array': null,
+ 'cache': null,
+ 'criteria': null,
+ 'false': false,
+ 'index': 0,
+ 'null': false,
+ 'number': null,
+ 'object': null,
+ 'push': null,
+ 'string': null,
+ 'true': false,
+ 'undefined': false,
+ 'value': null
+ };
+ }
+
+ /**
+ * Releases the given array back to the array pool.
+ *
+ * @private
+ * @param {Array} [array] The array to release.
+ */
+ function releaseArray(array) {
+ array.length = 0;
+ if (arrayPool.length < maxPoolSize) {
+ arrayPool.push(array);
+ }
+ }
+
+ /**
+ * Releases the given object back to the object pool.
+ *
+ * @private
+ * @param {Object} [object] The object to release.
+ */
+ function releaseObject(object) {
+ var cache = object.cache;
+ if (cache) {
+ releaseObject(cache);
+ }
+ object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
+ if (objectPool.length < maxPoolSize) {
+ objectPool.push(object);
+ }
+ }
+
+ /**
+ * Slices the `collection` from the `start` index up to, but not including,
+ * the `end` index.
+ *
+ * Note: This function is used instead of `Array#slice` to support node lists
+ * in IE < 9 and to ensure dense arrays are returned.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to slice.
+ * @param {number} start The start index.
+ * @param {number} end The end index.
+ * @returns {Array} Returns the new array.
+ */
+ function slice(array, start, end) {
+ start || (start = 0);
+ if (typeof end == 'undefined') {
+ end = array ? array.length : 0;
+ }
+ var index = -1,
+ length = end - start || 0,
+ result = Array(length < 0 ? 0 : length);
+
+ while (++index < length) {
+ result[index] = array[start + index];
+ }
+ return result;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Create a new `lodash` function using the given context object.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {Object} [context=root] The context object.
+ * @returns {Function} Returns the `lodash` function.
+ */
+ function runInContext(context) {
+ // Avoid issues with some ES3 environments that attempt to use values, named
+ // after built-in constructors like `Object`, for the creation of literals.
+ // ES5 clears this up by stating that literals must use built-in constructors.
+ // See http://es5.github.io/#x11.1.5.
+ context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+
+ /** Native constructor references */
+ var Array = context.Array,
+ Boolean = context.Boolean,
+ Date = context.Date,
+ Function = context.Function,
+ Math = context.Math,
+ Number = context.Number,
+ Object = context.Object,
+ RegExp = context.RegExp,
+ String = context.String,
+ TypeError = context.TypeError;
+
+ /**
+ * Used for `Array` method references.
+ *
+ * Normally `Array.prototype` would suffice, however, using an array literal
+ * avoids issues in Narwhal.
+ */
+ var arrayRef = [];
+
+ /** Used for native method references */
+ var objectProto = Object.prototype;
+
+ /** Used to restore the original `_` reference in `noConflict` */
+ var oldDash = context._;
+
+ /** Used to resolve the internal [[Class]] of values */
+ var toString = objectProto.toString;
+
+ /** Used to detect if a method is native */
+ var reNative = RegExp('^' +
+ String(toString)
+ .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+ .replace(/toString| for [^\]]+/g, '.*?') + '$'
+ );
+
+ /** Native method shortcuts */
+ var ceil = Math.ceil,
+ clearTimeout = context.clearTimeout,
+ floor = Math.floor,
+ fnToString = Function.prototype.toString,
+ getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
+ hasOwnProperty = objectProto.hasOwnProperty,
+ push = arrayRef.push,
+ setTimeout = context.setTimeout,
+ splice = arrayRef.splice,
+ unshift = arrayRef.unshift;
+
+ /** Used to set meta data on functions */
+ var defineProperty = (function() {
+ // IE 8 only accepts DOM elements
+ try {
+ var o = {},
+ func = isNative(func = Object.defineProperty) && func,
+ result = func(o, o, o) && func;
+ } catch(e) { }
+ return result;
+ }());
+
+ /* Native method shortcuts for methods with the same name as other `lodash` methods */
+ var nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
+ nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
+ nativeIsFinite = context.isFinite,
+ nativeIsNaN = context.isNaN,
+ nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
+ nativeMax = Math.max,
+ nativeMin = Math.min,
+ nativeParseInt = context.parseInt,
+ nativeRandom = Math.random;
+
+ /** Used to lookup a built-in constructor by [[Class]] */
+ var ctorByClass = {};
+ ctorByClass[arrayClass] = Array;
+ ctorByClass[boolClass] = Boolean;
+ ctorByClass[dateClass] = Date;
+ ctorByClass[funcClass] = Function;
+ ctorByClass[objectClass] = Object;
+ ctorByClass[numberClass] = Number;
+ ctorByClass[regexpClass] = RegExp;
+ ctorByClass[stringClass] = String;
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Creates a `lodash` object which wraps the given value to enable intuitive
+ * method chaining.
+ *
+ * In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
+ * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
+ * and `unshift`
+ *
+ * Chaining is supported in custom builds as long as the `value` method is
+ * implicitly or explicitly included in the build.
+ *
+ * The chainable wrapper functions are:
+ * `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
+ * `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
+ * `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
+ * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
+ * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
+ * `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
+ * `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
+ * `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
+ * `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
+ * `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
+ * and `zip`
+ *
+ * The non-chainable wrapper functions are:
+ * `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
+ * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
+ * `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
+ * `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
+ * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
+ * `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
+ * `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
+ * `template`, `unescape`, `uniqueId`, and `value`
+ *
+ * The wrapper functions `first` and `last` return wrapped values when `n` is
+ * provided, otherwise they return unwrapped values.
+ *
+ * Explicit chaining can be enabled by using the `_.chain` method.
+ *
+ * @name _
+ * @constructor
+ * @category Chaining
+ * @param {*} value The value to wrap in a `lodash` instance.
+ * @returns {Object} Returns a `lodash` instance.
+ * @example
+ *
+ * var wrapped = _([1, 2, 3]);
+ *
+ * // returns an unwrapped value
+ * wrapped.reduce(function(sum, num) {
+ * return sum + num;
+ * });
+ * // => 6
+ *
+ * // returns a wrapped value
+ * var squares = wrapped.map(function(num) {
+ * return num * num;
+ * });
+ *
+ * _.isArray(squares);
+ * // => false
+ *
+ * _.isArray(squares.value());
+ * // => true
+ */
+ function lodash(value) {
+ // don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
+ return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
+ ? value
+ : new lodashWrapper(value);
+ }
+
+ /**
+ * A fast path for creating `lodash` wrapper objects.
+ *
+ * @private
+ * @param {*} value The value to wrap in a `lodash` instance.
+ * @param {boolean} chainAll A flag to enable chaining for all methods
+ * @returns {Object} Returns a `lodash` instance.
+ */
+ function lodashWrapper(value, chainAll) {
+ this.__chain__ = !!chainAll;
+ this.__wrapped__ = value;
+ }
+ // ensure `new lodashWrapper` is an instance of `lodash`
+ lodashWrapper.prototype = lodash.prototype;
+
+ /**
+ * An object used to flag environments features.
+ *
+ * @static
+ * @memberOf _
+ * @type Object
+ */
+ var support = lodash.support = {};
+
+ /**
+ * Detect if functions can be decompiled by `Function#toString`
+ * (all but PS3 and older Opera mobile browsers & avoided in Windows 8 apps).
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
+
+ /**
+ * Detect if `Function#name` is supported (all but IE).
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ support.funcNames = typeof Function.name == 'string';
+
+ /**
+ * By default, the template delimiters used by Lo-Dash are similar to those in
+ * embedded Ruby (ERB). Change the following template settings to use alternative
+ * delimiters.
+ *
+ * @static
+ * @memberOf _
+ * @type Object
+ */
+ lodash.templateSettings = {
+
+ /**
+ * Used to detect `data` property values to be HTML-escaped.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'escape': /<%-([\s\S]+?)%>/g,
+
+ /**
+ * Used to detect code to be evaluated.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'evaluate': /<%([\s\S]+?)%>/g,
+
+ /**
+ * Used to detect `data` property values to inject.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'interpolate': reInterpolate,
+
+ /**
+ * Used to reference the data object in the template text.
+ *
+ * @memberOf _.templateSettings
+ * @type string
+ */
+ 'variable': '',
+
+ /**
+ * Used to import variables into the compiled template.
+ *
+ * @memberOf _.templateSettings
+ * @type Object
+ */
+ 'imports': {
+
+ /**
+ * A reference to the `lodash` function.
+ *
+ * @memberOf _.templateSettings.imports
+ * @type Function
+ */
+ '_': lodash
+ }
+ };
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * The base implementation of `_.bind` that creates the bound function and
+ * sets its meta data.
+ *
+ * @private
+ * @param {Array} bindData The bind data array.
+ * @returns {Function} Returns the new bound function.
+ */
+ function baseBind(bindData) {
+ var func = bindData[0],
+ partialArgs = bindData[2],
+ thisArg = bindData[4];
+
+ function bound() {
+ // `Function#bind` spec
+ // http://es5.github.io/#x15.3.4.5
+ if (partialArgs) {
+ // avoid `arguments` object deoptimizations by using `slice` instead
+ // of `Array.prototype.slice.call` and not assigning `arguments` to a
+ // variable as a ternary expression
+ var args = slice(partialArgs);
+ push.apply(args, arguments);
+ }
+ // mimic the constructor's `return` behavior
+ // http://es5.github.io/#x13.2.2
+ if (this instanceof bound) {
+ // ensure `new bound` is an instance of `func`
+ var thisBinding = baseCreate(func.prototype),
+ result = func.apply(thisBinding, args || arguments);
+ return isObject(result) ? result : thisBinding;
+ }
+ return func.apply(thisArg, args || arguments);
+ }
+ setBindData(bound, bindData);
+ return bound;
+ }
+
+ /**
+ * The base implementation of `_.clone` without argument juggling or support
+ * for `thisArg` binding.
+ *
+ * @private
+ * @param {*} value The value to clone.
+ * @param {boolean} [isDeep=false] Specify a deep clone.
+ * @param {Function} [callback] The function to customize cloning values.
+ * @param {Array} [stackA=[]] Tracks traversed source objects.
+ * @param {Array} [stackB=[]] Associates clones with source counterparts.
+ * @returns {*} Returns the cloned value.
+ */
+ function baseClone(value, isDeep, callback, stackA, stackB) {
+ if (callback) {
+ var result = callback(value);
+ if (typeof result != 'undefined') {
+ return result;
+ }
+ }
+ // inspect [[Class]]
+ var isObj = isObject(value);
+ if (isObj) {
+ var className = toString.call(value);
+ if (!cloneableClasses[className]) {
+ return value;
+ }
+ var ctor = ctorByClass[className];
+ switch (className) {
+ case boolClass:
+ case dateClass:
+ return new ctor(+value);
+
+ case numberClass:
+ case stringClass:
+ return new ctor(value);
+
+ case regexpClass:
+ result = ctor(value.source, reFlags.exec(value));
+ result.lastIndex = value.lastIndex;
+ return result;
+ }
+ } else {
+ return value;
+ }
+ var isArr = isArray(value);
+ if (isDeep) {
+ // check for circular references and return corresponding clone
+ var initedStack = !stackA;
+ stackA || (stackA = getArray());
+ stackB || (stackB = getArray());
+
+ var length = stackA.length;
+ while (length--) {
+ if (stackA[length] == value) {
+ return stackB[length];
+ }
+ }
+ result = isArr ? ctor(value.length) : {};
+ }
+ else {
+ result = isArr ? slice(value) : assign({}, value);
+ }
+ // add array properties assigned by `RegExp#exec`
+ if (isArr) {
+ if (hasOwnProperty.call(value, 'index')) {
+ result.index = value.index;
+ }
+ if (hasOwnProperty.call(value, 'input')) {
+ result.input = value.input;
+ }
+ }
+ // exit for shallow clone
+ if (!isDeep) {
+ return result;
+ }
+ // add the source value to the stack of traversed objects
+ // and associate it with its clone
+ stackA.push(value);
+ stackB.push(result);
+
+ // recursively populate clone (susceptible to call stack limits)
+ (isArr ? forEach : forOwn)(value, function(objValue, key) {
+ result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
+ });
+
+ if (initedStack) {
+ releaseArray(stackA);
+ releaseArray(stackB);
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} prototype The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+ function baseCreate(prototype, properties) {
+ return isObject(prototype) ? nativeCreate(prototype) : {};
+ }
+ // fallback for browsers without `Object.create`
+ if (!nativeCreate) {
+ baseCreate = (function() {
+ function Object() {}
+ return function(prototype) {
+ if (isObject(prototype)) {
+ Object.prototype = prototype;
+ var result = new Object;
+ Object.prototype = null;
+ }
+ return result || context.Object();
+ };
+ }());
+ }
+
+ /**
+ * The base implementation of `_.createCallback` without support for creating
+ * "_.pluck" or "_.where" style callbacks.
+ *
+ * @private
+ * @param {*} [func=identity] The value to convert to a callback.
+ * @param {*} [thisArg] The `this` binding of the created callback.
+ * @param {number} [argCount] The number of arguments the callback accepts.
+ * @returns {Function} Returns a callback function.
+ */
+ function baseCreateCallback(func, thisArg, argCount) {
+ if (typeof func != 'function') {
+ return identity;
+ }
+ // exit early for no `thisArg` or already bound by `Function#bind`
+ if (typeof thisArg == 'undefined' || !('prototype' in func)) {
+ return func;
+ }
+ var bindData = func.__bindData__;
+ if (typeof bindData == 'undefined') {
+ if (support.funcNames) {
+ bindData = !func.name;
+ }
+ bindData = bindData || !support.funcDecomp;
+ if (!bindData) {
+ var source = fnToString.call(func);
+ if (!support.funcNames) {
+ bindData = !reFuncName.test(source);
+ }
+ if (!bindData) {
+ // checks if `func` references the `this` keyword and stores the result
+ bindData = reThis.test(source);
+ setBindData(func, bindData);
+ }
+ }
+ }
+ // exit early if there are no `this` references or `func` is bound
+ if (bindData === false || (bindData !== true && bindData[1] & 1)) {
+ return func;
+ }
+ switch (argCount) {
+ case 1: return function(value) {
+ return func.call(thisArg, value);
+ };
+ case 2: return function(a, b) {
+ return func.call(thisArg, a, b);
+ };
+ case 3: return function(value, index, collection) {
+ return func.call(thisArg, value, index, collection);
+ };
+ case 4: return function(accumulator, value, index, collection) {
+ return func.call(thisArg, accumulator, value, index, collection);
+ };
+ }
+ return bind(func, thisArg);
+ }
+
+ /**
+ * The base implementation of `createWrapper` that creates the wrapper and
+ * sets its meta data.
+ *
+ * @private
+ * @param {Array} bindData The bind data array.
+ * @returns {Function} Returns the new function.
+ */
+ function baseCreateWrapper(bindData) {
+ var func = bindData[0],
+ bitmask = bindData[1],
+ partialArgs = bindData[2],
+ partialRightArgs = bindData[3],
+ thisArg = bindData[4],
+ arity = bindData[5];
+
+ var isBind = bitmask & 1,
+ isBindKey = bitmask & 2,
+ isCurry = bitmask & 4,
+ isCurryBound = bitmask & 8,
+ key = func;
+
+ function bound() {
+ var thisBinding = isBind ? thisArg : this;
+ if (partialArgs) {
+ var args = slice(partialArgs);
+ push.apply(args, arguments);
+ }
+ if (partialRightArgs || isCurry) {
+ args || (args = slice(arguments));
+ if (partialRightArgs) {
+ push.apply(args, partialRightArgs);
+ }
+ if (isCurry && args.length < arity) {
+ bitmask |= 16 & ~32;
+ return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
+ }
+ }
+ args || (args = arguments);
+ if (isBindKey) {
+ func = thisBinding[key];
+ }
+ if (this instanceof bound) {
+ thisBinding = baseCreate(func.prototype);
+ var result = func.apply(thisBinding, args);
+ return isObject(result) ? result : thisBinding;
+ }
+ return func.apply(thisBinding, args);
+ }
+ setBindData(bound, bindData);
+ return bound;
+ }
+
+ /**
+ * The base implementation of `_.difference` that accepts a single array
+ * of values to exclude.
+ *
+ * @private
+ * @param {Array} array The array to process.
+ * @param {Array} [values] The array of values to exclude.
+ * @returns {Array} Returns a new array of filtered values.
+ */
+ function baseDifference(array, values) {
+ var index = -1,
+ indexOf = getIndexOf(),
+ length = array ? array.length : 0,
+ isLarge = length >= largeArraySize && indexOf === baseIndexOf,
+ result = [];
+
+ if (isLarge) {
+ var cache = createCache(values);
+ if (cache) {
+ indexOf = cacheIndexOf;
+ values = cache;
+ } else {
+ isLarge = false;
+ }
+ }
+ while (++index < length) {
+ var value = array[index];
+ if (indexOf(values, value) < 0) {
+ result.push(value);
+ }
+ }
+ if (isLarge) {
+ releaseObject(values);
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.flatten` without support for callback
+ * shorthands or `thisArg` binding.
+ *
+ * @private
+ * @param {Array} array The array to flatten.
+ * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+ * @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
+ * @param {number} [fromIndex=0] The index to start from.
+ * @returns {Array} Returns a new flattened array.
+ */
+ function baseFlatten(array, isShallow, isStrict, fromIndex) {
+ var index = (fromIndex || 0) - 1,
+ length = array ? array.length : 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+
+ if (value && typeof value == 'object' && typeof value.length == 'number'
+ && (isArray(value) || isArguments(value))) {
+ // recursively flatten arrays (susceptible to call stack limits)
+ if (!isShallow) {
+ value = baseFlatten(value, isShallow, isStrict);
+ }
+ var valIndex = -1,
+ valLength = value.length,
+ resIndex = result.length;
+
+ result.length += valLength;
+ while (++valIndex < valLength) {
+ result[resIndex++] = value[valIndex];
+ }
+ } else if (!isStrict) {
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.isEqual`, without support for `thisArg` binding,
+ * that allows partial "_.where" style comparisons.
+ *
+ * @private
+ * @param {*} a The value to compare.
+ * @param {*} b The other value to compare.
+ * @param {Function} [callback] The function to customize comparing values.
+ * @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
+ * @param {Array} [stackA=[]] Tracks traversed `a` objects.
+ * @param {Array} [stackB=[]] Tracks traversed `b` objects.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ */
+ function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
+ // used to indicate that when comparing objects, `a` has at least the properties of `b`
+ if (callback) {
+ var result = callback(a, b);
+ if (typeof result != 'undefined') {
+ return !!result;
+ }
+ }
+ // exit early for identical values
+ if (a === b) {
+ // treat `+0` vs. `-0` as not equal
+ return a !== 0 || (1 / a == 1 / b);
+ }
+ var type = typeof a,
+ otherType = typeof b;
+
+ // exit early for unlike primitive values
+ if (a === a &&
+ !(a && objectTypes[type]) &&
+ !(b && objectTypes[otherType])) {
+ return false;
+ }
+ // exit early for `null` and `undefined` avoiding ES3's Function#call behavior
+ // http://es5.github.io/#x15.3.4.4
+ if (a == null || b == null) {
+ return a === b;
+ }
+ // compare [[Class]] names
+ var className = toString.call(a),
+ otherClass = toString.call(b);
+
+ if (className == argsClass) {
+ className = objectClass;
+ }
+ if (otherClass == argsClass) {
+ otherClass = objectClass;
+ }
+ if (className != otherClass) {
+ return false;
+ }
+ switch (className) {
+ case boolClass:
+ case dateClass:
+ // coerce dates and booleans to numbers, dates to milliseconds and booleans
+ // to `1` or `0` treating invalid dates coerced to `NaN` as not equal
+ return +a == +b;
+
+ case numberClass:
+ // treat `NaN` vs. `NaN` as equal
+ return (a != +a)
+ ? b != +b
+ // but treat `+0` vs. `-0` as not equal
+ : (a == 0 ? (1 / a == 1 / b) : a == +b);
+
+ case regexpClass:
+ case stringClass:
+ // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
+ // treat string primitives and their corresponding object instances as equal
+ return a == String(b);
+ }
+ var isArr = className == arrayClass;
+ if (!isArr) {
+ // unwrap any `lodash` wrapped values
+ var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
+ bWrapped = hasOwnProperty.call(b, '__wrapped__');
+
+ if (aWrapped || bWrapped) {
+ return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
+ }
+ // exit for functions and DOM nodes
+ if (className != objectClass) {
+ return false;
+ }
+ // in older versions of Opera, `arguments` objects have `Array` constructors
+ var ctorA = a.constructor,
+ ctorB = b.constructor;
+
+ // non `Object` object instances with different constructors are not equal
+ if (ctorA != ctorB &&
+ !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
+ ('constructor' in a && 'constructor' in b)
+ ) {
+ return false;
+ }
+ }
+ // assume cyclic structures are equal
+ // the algorithm for detecting cyclic structures is adapted from ES 5.1
+ // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
+ var initedStack = !stackA;
+ stackA || (stackA = getArray());
+ stackB || (stackB = getArray());
+
+ var length = stackA.length;
+ while (length--) {
+ if (stackA[length] == a) {
+ return stackB[length] == b;
+ }
+ }
+ var size = 0;
+ result = true;
+
+ // add `a` and `b` to the stack of traversed objects
+ stackA.push(a);
+ stackB.push(b);
+
+ // recursively compare objects and arrays (susceptible to call stack limits)
+ if (isArr) {
+ // compare lengths to determine if a deep comparison is necessary
+ length = a.length;
+ size = b.length;
+ result = size == length;
+
+ if (result || isWhere) {
+ // deep compare the contents, ignoring non-numeric properties
+ while (size--) {
+ var index = length,
+ value = b[size];
+
+ if (isWhere) {
+ while (index--) {
+ if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+ break;
+ }
+ }
+ } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+ break;
+ }
+ }
+ }
+ }
+ else {
+ // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+ // which, in this case, is more costly
+ forIn(b, function(value, key, b) {
+ if (hasOwnProperty.call(b, key)) {
+ // count the number of properties.
+ size++;
+ // deep compare each property value.
+ return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
+ }
+ });
+
+ if (result && !isWhere) {
+ // ensure both objects have the same number of properties
+ forIn(a, function(value, key, a) {
+ if (hasOwnProperty.call(a, key)) {
+ // `size` will be `-1` if `a` has more properties than `b`
+ return (result = --size > -1);
+ }
+ });
+ }
+ }
+ stackA.pop();
+ stackB.pop();
+
+ if (initedStack) {
+ releaseArray(stackA);
+ releaseArray(stackB);
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.merge` without argument juggling or support
+ * for `thisArg` binding.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {Function} [callback] The function to customize merging properties.
+ * @param {Array} [stackA=[]] Tracks traversed source objects.
+ * @param {Array} [stackB=[]] Associates values with source counterparts.
+ */
+ function baseMerge(object, source, callback, stackA, stackB) {
+ (isArray(source) ? forEach : forOwn)(source, function(source, key) {
+ var found,
+ isArr,
+ result = source,
+ value = object[key];
+
+ if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
+ // avoid merging previously merged cyclic sources
+ var stackLength = stackA.length;
+ while (stackLength--) {
+ if ((found = stackA[stackLength] == source)) {
+ value = stackB[stackLength];
+ break;
+ }
+ }
+ if (!found) {
+ var isShallow;
+ if (callback) {
+ result = callback(value, source);
+ if ((isShallow = typeof result != 'undefined')) {
+ value = result;
+ }
+ }
+ if (!isShallow) {
+ value = isArr
+ ? (isArray(value) ? value : [])
+ : (isPlainObject(value) ? value : {});
+ }
+ // add `source` and associated `value` to the stack of traversed objects
+ stackA.push(source);
+ stackB.push(value);
+
+ // recursively merge objects and arrays (susceptible to call stack limits)
+ if (!isShallow) {
+ baseMerge(value, source, callback, stackA, stackB);
+ }
+ }
+ }
+ else {
+ if (callback) {
+ result = callback(value, source);
+ if (typeof result == 'undefined') {
+ result = source;
+ }
+ }
+ if (typeof result != 'undefined') {
+ value = result;
+ }
+ }
+ object[key] = value;
+ });
+ }
+
+ /**
+ * The base implementation of `_.random` without argument juggling or support
+ * for returning floating-point numbers.
+ *
+ * @private
+ * @param {number} min The minimum possible value.
+ * @param {number} max The maximum possible value.
+ * @returns {number} Returns a random number.
+ */
+ function baseRandom(min, max) {
+ return min + floor(nativeRandom() * (max - min + 1));
+ }
+
+ /**
+ * The base implementation of `_.uniq` without support for callback shorthands
+ * or `thisArg` binding.
+ *
+ * @private
+ * @param {Array} array The array to process.
+ * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+ * @param {Function} [callback] The function called per iteration.
+ * @returns {Array} Returns a duplicate-value-free array.
+ */
+ function baseUniq(array, isSorted, callback) {
+ var index = -1,
+ indexOf = getIndexOf(),
+ length = array ? array.length : 0,
+ result = [];
+
+ var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
+ seen = (callback || isLarge) ? getArray() : result;
+
+ if (isLarge) {
+ var cache = createCache(seen);
+ indexOf = cacheIndexOf;
+ seen = cache;
+ }
+ while (++index < length) {
+ var value = array[index],
+ computed = callback ? callback(value, index, array) : value;
+
+ if (isSorted
+ ? !index || seen[seen.length - 1] !== computed
+ : indexOf(seen, computed) < 0
+ ) {
+ if (callback || isLarge) {
+ seen.push(computed);
+ }
+ result.push(value);
+ }
+ }
+ if (isLarge) {
+ releaseArray(seen.array);
+ releaseObject(seen);
+ } else if (callback) {
+ releaseArray(seen);
+ }
+ return result;
+ }
+
+ /**
+ * Creates a function that aggregates a collection, creating an object composed
+ * of keys generated from the results of running each element of the collection
+ * through a callback. The given `setter` function sets the keys and values
+ * of the composed object.
+ *
+ * @private
+ * @param {Function} setter The setter function.
+ * @returns {Function} Returns the new aggregator function.
+ */
+ function createAggregator(setter) {
+ return function(collection, callback, thisArg) {
+ var result = {};
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ if (typeof length == 'number') {
+ while (++index < length) {
+ var value = collection[index];
+ setter(result, value, callback(value, index, collection), collection);
+ }
+ } else {
+ forOwn(collection, function(value, key, collection) {
+ setter(result, value, callback(value, key, collection), collection);
+ });
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Creates a function that, when called, either curries or invokes `func`
+ * with an optional `this` binding and partially applied arguments.
+ *
+ * @private
+ * @param {Function|string} func The function or method name to reference.
+ * @param {number} bitmask The bitmask of method flags to compose.
+ * The bitmask may be composed of the following flags:
+ * 1 - `_.bind`
+ * 2 - `_.bindKey`
+ * 4 - `_.curry`
+ * 8 - `_.curry` (bound)
+ * 16 - `_.partial`
+ * 32 - `_.partialRight`
+ * @param {Array} [partialArgs] An array of arguments to prepend to those
+ * provided to the new function.
+ * @param {Array} [partialRightArgs] An array of arguments to append to those
+ * provided to the new function.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {number} [arity] The arity of `func`.
+ * @returns {Function} Returns the new function.
+ */
+ function createWrapper(func, bitmask, partialArgs, partialRightArgs, thisArg, arity) {
+ var isBind = bitmask & 1,
+ isBindKey = bitmask & 2,
+ isCurry = bitmask & 4,
+ isCurryBound = bitmask & 8,
+ isPartial = bitmask & 16,
+ isPartialRight = bitmask & 32;
+
+ if (!isBindKey && !isFunction(func)) {
+ throw new TypeError;
+ }
+ if (isPartial && !partialArgs.length) {
+ bitmask &= ~16;
+ isPartial = partialArgs = false;
+ }
+ if (isPartialRight && !partialRightArgs.length) {
+ bitmask &= ~32;
+ isPartialRight = partialRightArgs = false;
+ }
+ var bindData = func && func.__bindData__;
+ if (bindData && bindData !== true) {
+ // clone `bindData`
+ bindData = slice(bindData);
+ if (bindData[2]) {
+ bindData[2] = slice(bindData[2]);
+ }
+ if (bindData[3]) {
+ bindData[3] = slice(bindData[3]);
+ }
+ // set `thisBinding` is not previously bound
+ if (isBind && !(bindData[1] & 1)) {
+ bindData[4] = thisArg;
+ }
+ // set if previously bound but not currently (subsequent curried functions)
+ if (!isBind && bindData[1] & 1) {
+ bitmask |= 8;
+ }
+ // set curried arity if not yet set
+ if (isCurry && !(bindData[1] & 4)) {
+ bindData[5] = arity;
+ }
+ // append partial left arguments
+ if (isPartial) {
+ push.apply(bindData[2] || (bindData[2] = []), partialArgs);
+ }
+ // append partial right arguments
+ if (isPartialRight) {
+ unshift.apply(bindData[3] || (bindData[3] = []), partialRightArgs);
+ }
+ // merge flags
+ bindData[1] |= bitmask;
+ return createWrapper.apply(null, bindData);
+ }
+ // fast path for `_.bind`
+ var creater = (bitmask == 1 || bitmask === 17) ? baseBind : baseCreateWrapper;
+ return creater([func, bitmask, partialArgs, partialRightArgs, thisArg, arity]);
+ }
+
+ /**
+ * Used by `escape` to convert characters to HTML entities.
+ *
+ * @private
+ * @param {string} match The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ function escapeHtmlChar(match) {
+ return htmlEscapes[match];
+ }
+
+ /**
+ * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
+ * customized, this method returns the custom method, otherwise it returns
+ * the `baseIndexOf` function.
+ *
+ * @private
+ * @returns {Function} Returns the "indexOf" function.
+ */
+ function getIndexOf() {
+ var result = (result = lodash.indexOf) === indexOf ? baseIndexOf : result;
+ return result;
+ }
+
+ /**
+ * Checks if `value` is a native function.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
+ */
+ function isNative(value) {
+ return typeof value == 'function' && reNative.test(value);
+ }
+
+ /**
+ * Sets `this` binding data on a given function.
+ *
+ * @private
+ * @param {Function} func The function to set data on.
+ * @param {Array} value The data array to set.
+ */
+ var setBindData = !defineProperty ? noop : function(func, value) {
+ descriptor.value = value;
+ defineProperty(func, '__bindData__', descriptor);
+ };
+
+ /**
+ * A fallback implementation of `isPlainObject` which checks if a given value
+ * is an object created by the `Object` constructor, assuming objects created
+ * by the `Object` constructor have no inherited enumerable properties and that
+ * there are no `Object.prototype` extensions.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+ */
+ function shimIsPlainObject(value) {
+ var ctor,
+ result;
+
+ // avoid non Object objects, `arguments` objects, and DOM elements
+ if (!(value && toString.call(value) == objectClass) ||
+ (ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor))) {
+ return false;
+ }
+ // In most environments an object's own properties are iterated before
+ // its inherited properties. If the last iterated property is an object's
+ // own property then there are no inherited enumerable properties.
+ forIn(value, function(value, key) {
+ result = key;
+ });
+ return typeof result == 'undefined' || hasOwnProperty.call(value, result);
+ }
+
+ /**
+ * Used by `unescape` to convert HTML entities to characters.
+ *
+ * @private
+ * @param {string} match The matched character to unescape.
+ * @returns {string} Returns the unescaped character.
+ */
+ function unescapeHtmlChar(match) {
+ return htmlUnescapes[match];
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Checks if `value` is an `arguments` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is an `arguments` object, else `false`.
+ * @example
+ *
+ * (function() { return _.isArguments(arguments); })(1, 2, 3);
+ * // => true
+ *
+ * _.isArguments([1, 2, 3]);
+ * // => false
+ */
+ function isArguments(value) {
+ return value && typeof value == 'object' && typeof value.length == 'number' &&
+ toString.call(value) == argsClass || false;
+ }
+
+ /**
+ * Checks if `value` is an array.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is an array, else `false`.
+ * @example
+ *
+ * (function() { return _.isArray(arguments); })();
+ * // => false
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ */
+ var isArray = nativeIsArray || function(value) {
+ return value && typeof value == 'object' && typeof value.length == 'number' &&
+ toString.call(value) == arrayClass || false;
+ };
+
+ /**
+ * A fallback implementation of `Object.keys` which produces an array of the
+ * given object's own enumerable property names.
+ *
+ * @private
+ * @type Function
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns an array of property names.
+ */
+ var shimKeys = function(object) {
+ var index, iterable = object, result = [];
+ if (!iterable) return result;
+ if (!(objectTypes[typeof object])) return result;
+ for (index in iterable) {
+ if (hasOwnProperty.call(iterable, index)) {
+ result.push(index);
+ }
+ }
+ return result
+ };
+
+ /**
+ * Creates an array composed of the own enumerable property names of an object.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns an array of property names.
+ * @example
+ *
+ * _.keys({ 'one': 1, 'two': 2, 'three': 3 });
+ * // => ['one', 'two', 'three'] (property order is not guaranteed across environments)
+ */
+ var keys = !nativeKeys ? shimKeys : function(object) {
+ if (!isObject(object)) {
+ return [];
+ }
+ return nativeKeys(object);
+ };
+
+ /**
+ * Used to convert characters to HTML entities:
+ *
+ * Though the `>` character is escaped for symmetry, characters like `>` and `/`
+ * don't require escaping in HTML and have no special meaning unless they're part
+ * of a tag or an unquoted attribute value.
+ * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
+ */
+ var htmlEscapes = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ "'": '''
+ };
+
+ /** Used to convert HTML entities to characters */
+ var htmlUnescapes = invert(htmlEscapes);
+
+ /** Used to match HTML entities and HTML characters */
+ var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
+ reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Assigns own enumerable properties of source object(s) to the destination
+ * object. Subsequent sources will overwrite property assignments of previous
+ * sources. If a callback is provided it will be executed to produce the
+ * assigned values. The callback is bound to `thisArg` and invoked with two
+ * arguments; (objectValue, sourceValue).
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @alias extend
+ * @category Objects
+ * @param {Object} object The destination object.
+ * @param {...Object} [source] The source objects.
+ * @param {Function} [callback] The function to customize assigning values.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns the destination object.
+ * @example
+ *
+ * _.assign({ 'name': 'fred' }, { 'employer': 'slate' });
+ * // => { 'name': 'fred', 'employer': 'slate' }
+ *
+ * var defaults = _.partialRight(_.assign, function(a, b) {
+ * return typeof a == 'undefined' ? b : a;
+ * });
+ *
+ * var object = { 'name': 'barney' };
+ * defaults(object, { 'name': 'fred', 'employer': 'slate' });
+ * // => { 'name': 'barney', 'employer': 'slate' }
+ */
+ var assign = function(object, source, guard) {
+ var index, iterable = object, result = iterable;
+ if (!iterable) return result;
+ var args = arguments,
+ argsIndex = 0,
+ argsLength = typeof guard == 'number' ? 2 : args.length;
+ if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
+ var callback = baseCreateCallback(args[--argsLength - 1], args[argsLength--], 2);
+ } else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
+ callback = args[--argsLength];
+ }
+ while (++argsIndex < argsLength) {
+ iterable = args[argsIndex];
+ if (iterable && objectTypes[typeof iterable]) {
+ var ownIndex = -1,
+ ownProps = objectTypes[typeof iterable] && keys(iterable),
+ length = ownProps ? ownProps.length : 0;
+
+ while (++ownIndex < length) {
+ index = ownProps[ownIndex];
+ result[index] = callback ? callback(result[index], iterable[index]) : iterable[index];
+ }
+ }
+ }
+ return result
+ };
+
+ /**
+ * Creates a clone of `value`. If `isDeep` is `true` nested objects will also
+ * be cloned, otherwise they will be assigned by reference. If a callback
+ * is provided it will be executed to produce the cloned values. If the
+ * callback returns `undefined` cloning will be handled by the method instead.
+ * The callback is bound to `thisArg` and invoked with one argument; (value).
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to clone.
+ * @param {boolean} [isDeep=false] Specify a deep clone.
+ * @param {Function} [callback] The function to customize cloning values.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the cloned value.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * var shallow = _.clone(characters);
+ * shallow[0] === characters[0];
+ * // => true
+ *
+ * var deep = _.clone(characters, true);
+ * deep[0] === characters[0];
+ * // => false
+ *
+ * _.mixin({
+ * 'clone': _.partialRight(_.clone, function(value) {
+ * return _.isElement(value) ? value.cloneNode(false) : undefined;
+ * })
+ * });
+ *
+ * var clone = _.clone(document.body);
+ * clone.childNodes.length;
+ * // => 0
+ */
+ function clone(value, isDeep, callback, thisArg) {
+ // allows working with "Collections" methods without using their `index`
+ // and `collection` arguments for `isDeep` and `callback`
+ if (typeof isDeep != 'boolean' && isDeep != null) {
+ thisArg = callback;
+ callback = isDeep;
+ isDeep = false;
+ }
+ return baseClone(value, isDeep, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+ }
+
+ /**
+ * Creates a deep clone of `value`. If a callback is provided it will be
+ * executed to produce the cloned values. If the callback returns `undefined`
+ * cloning will be handled by the method instead. The callback is bound to
+ * `thisArg` and invoked with one argument; (value).
+ *
+ * Note: This method is loosely based on the structured clone algorithm. Functions
+ * and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
+ * objects created by constructors other than `Object` are cloned to plain `Object` objects.
+ * See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to deep clone.
+ * @param {Function} [callback] The function to customize cloning values.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the deep cloned value.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * var deep = _.cloneDeep(characters);
+ * deep[0] === characters[0];
+ * // => false
+ *
+ * var view = {
+ * 'label': 'docs',
+ * 'node': element
+ * };
+ *
+ * var clone = _.cloneDeep(view, function(value) {
+ * return _.isElement(value) ? value.cloneNode(true) : undefined;
+ * });
+ *
+ * clone.node == view.node;
+ * // => false
+ */
+ function cloneDeep(value, callback, thisArg) {
+ return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
+ }
+
+ /**
+ * Creates an object that inherits from the given `prototype` object. If a
+ * `properties` object is provided its own enumerable properties are assigned
+ * to the created object.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} prototype The object to inherit from.
+ * @param {Object} [properties] The properties to assign to the object.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * function Shape() {
+ * this.x = 0;
+ * this.y = 0;
+ * }
+ *
+ * function Circle() {
+ * Shape.call(this);
+ * }
+ *
+ * Circle.prototype = _.create(Shape.prototype, { 'constructor': Circle });
+ *
+ * var circle = new Circle;
+ * circle instanceof Circle;
+ * // => true
+ *
+ * circle instanceof Shape;
+ * // => true
+ */
+ function create(prototype, properties) {
+ var result = baseCreate(prototype);
+ return properties ? assign(result, properties) : result;
+ }
+
+ /**
+ * Assigns own enumerable properties of source object(s) to the destination
+ * object for all destination properties that resolve to `undefined`. Once a
+ * property is set, additional defaults of the same property will be ignored.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Objects
+ * @param {Object} object The destination object.
+ * @param {...Object} [source] The source objects.
+ * @param- {Object} [guard] Allows working with `_.reduce` without using its
+ * `key` and `object` arguments as sources.
+ * @returns {Object} Returns the destination object.
+ * @example
+ *
+ * var object = { 'name': 'barney' };
+ * _.defaults(object, { 'name': 'fred', 'employer': 'slate' });
+ * // => { 'name': 'barney', 'employer': 'slate' }
+ */
+ var defaults = function(object, source, guard) {
+ var index, iterable = object, result = iterable;
+ if (!iterable) return result;
+ var args = arguments,
+ argsIndex = 0,
+ argsLength = typeof guard == 'number' ? 2 : args.length;
+ while (++argsIndex < argsLength) {
+ iterable = args[argsIndex];
+ if (iterable && objectTypes[typeof iterable]) {
+ var ownIndex = -1,
+ ownProps = objectTypes[typeof iterable] && keys(iterable),
+ length = ownProps ? ownProps.length : 0;
+
+ while (++ownIndex < length) {
+ index = ownProps[ownIndex];
+ if (typeof result[index] == 'undefined') result[index] = iterable[index];
+ }
+ }
+ }
+ return result
+ };
+
+ /**
+ * This method is like `_.findIndex` except that it returns the key of the
+ * first element that passes the callback check, instead of the element itself.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to search.
+ * @param {Function|Object|string} [callback=identity] The function called per
+ * iteration. If a property name or object is provided it will be used to
+ * create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+ * @example
+ *
+ * var characters = {
+ * 'barney': { 'age': 36, 'blocked': false },
+ * 'fred': { 'age': 40, 'blocked': true },
+ * 'pebbles': { 'age': 1, 'blocked': false }
+ * };
+ *
+ * _.findKey(characters, function(chr) {
+ * return chr.age < 40;
+ * });
+ * // => 'barney' (property order is not guaranteed across environments)
+ *
+ * // using "_.where" callback shorthand
+ * _.findKey(characters, { 'age': 1 });
+ * // => 'pebbles'
+ *
+ * // using "_.pluck" callback shorthand
+ * _.findKey(characters, 'blocked');
+ * // => 'fred'
+ */
+ function findKey(object, callback, thisArg) {
+ var result;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ forOwn(object, function(value, key, object) {
+ if (callback(value, key, object)) {
+ result = key;
+ return false;
+ }
+ });
+ return result;
+ }
+
+ /**
+ * This method is like `_.findKey` except that it iterates over elements
+ * of a `collection` in the opposite order.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to search.
+ * @param {Function|Object|string} [callback=identity] The function called per
+ * iteration. If a property name or object is provided it will be used to
+ * create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {string|undefined} Returns the key of the found element, else `undefined`.
+ * @example
+ *
+ * var characters = {
+ * 'barney': { 'age': 36, 'blocked': true },
+ * 'fred': { 'age': 40, 'blocked': false },
+ * 'pebbles': { 'age': 1, 'blocked': true }
+ * };
+ *
+ * _.findLastKey(characters, function(chr) {
+ * return chr.age < 40;
+ * });
+ * // => returns `pebbles`, assuming `_.findKey` returns `barney`
+ *
+ * // using "_.where" callback shorthand
+ * _.findLastKey(characters, { 'age': 40 });
+ * // => 'fred'
+ *
+ * // using "_.pluck" callback shorthand
+ * _.findLastKey(characters, 'blocked');
+ * // => 'pebbles'
+ */
+ function findLastKey(object, callback, thisArg) {
+ var result;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ forOwnRight(object, function(value, key, object) {
+ if (callback(value, key, object)) {
+ result = key;
+ return false;
+ }
+ });
+ return result;
+ }
+
+ /**
+ * Iterates over own and inherited enumerable properties of an object,
+ * executing the callback for each property. The callback is bound to `thisArg`
+ * and invoked with three arguments; (value, key, object). Callbacks may exit
+ * iteration early by explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Objects
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * function Shape() {
+ * this.x = 0;
+ * this.y = 0;
+ * }
+ *
+ * Shape.prototype.move = function(x, y) {
+ * this.x += x;
+ * this.y += y;
+ * };
+ *
+ * _.forIn(new Shape, function(value, key) {
+ * console.log(key);
+ * });
+ * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
+ */
+ var forIn = function(collection, callback, thisArg) {
+ var index, iterable = collection, result = iterable;
+ if (!iterable) return result;
+ if (!objectTypes[typeof iterable]) return result;
+ callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+ for (index in iterable) {
+ if (callback(iterable[index], index, collection) === false) return result;
+ }
+ return result
+ };
+
+ /**
+ * This method is like `_.forIn` except that it iterates over elements
+ * of a `collection` in the opposite order.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * function Shape() {
+ * this.x = 0;
+ * this.y = 0;
+ * }
+ *
+ * Shape.prototype.move = function(x, y) {
+ * this.x += x;
+ * this.y += y;
+ * };
+ *
+ * _.forInRight(new Shape, function(value, key) {
+ * console.log(key);
+ * });
+ * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
+ */
+ function forInRight(object, callback, thisArg) {
+ var pairs = [];
+
+ forIn(object, function(value, key) {
+ pairs.push(key, value);
+ });
+
+ var length = pairs.length;
+ callback = baseCreateCallback(callback, thisArg, 3);
+ while (length--) {
+ if (callback(pairs[length--], pairs[length], object) === false) {
+ break;
+ }
+ }
+ return object;
+ }
+
+ /**
+ * Iterates over own enumerable properties of an object, executing the callback
+ * for each property. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, key, object). Callbacks may exit iteration early by
+ * explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Objects
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+ * console.log(key);
+ * });
+ * // => logs '0', '1', and 'length' (property order is not guaranteed across environments)
+ */
+ var forOwn = function(collection, callback, thisArg) {
+ var index, iterable = collection, result = iterable;
+ if (!iterable) return result;
+ if (!objectTypes[typeof iterable]) return result;
+ callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+ var ownIndex = -1,
+ ownProps = objectTypes[typeof iterable] && keys(iterable),
+ length = ownProps ? ownProps.length : 0;
+
+ while (++ownIndex < length) {
+ index = ownProps[ownIndex];
+ if (callback(iterable[index], index, collection) === false) return result;
+ }
+ return result
+ };
+
+ /**
+ * This method is like `_.forOwn` except that it iterates over elements
+ * of a `collection` in the opposite order.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
+ * console.log(key);
+ * });
+ * // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
+ */
+ function forOwnRight(object, callback, thisArg) {
+ var props = keys(object),
+ length = props.length;
+
+ callback = baseCreateCallback(callback, thisArg, 3);
+ while (length--) {
+ var key = props[length];
+ if (callback(object[key], key, object) === false) {
+ break;
+ }
+ }
+ return object;
+ }
+
+ /**
+ * Creates a sorted array of property names of all enumerable properties,
+ * own and inherited, of `object` that have function values.
+ *
+ * @static
+ * @memberOf _
+ * @alias methods
+ * @category Objects
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns an array of property names that have function values.
+ * @example
+ *
+ * _.functions(_);
+ * // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
+ */
+ function functions(object) {
+ var result = [];
+ forIn(object, function(value, key) {
+ if (isFunction(value)) {
+ result.push(key);
+ }
+ });
+ return result.sort();
+ }
+
+ /**
+ * Checks if the specified property name exists as a direct property of `object`,
+ * instead of an inherited property.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to inspect.
+ * @param {string} key The name of the property to check.
+ * @returns {boolean} Returns `true` if key is a direct property, else `false`.
+ * @example
+ *
+ * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
+ * // => true
+ */
+ function has(object, key) {
+ return object ? hasOwnProperty.call(object, key) : false;
+ }
+
+ /**
+ * Creates an object composed of the inverted keys and values of the given object.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to invert.
+ * @returns {Object} Returns the created inverted object.
+ * @example
+ *
+ * _.invert({ 'first': 'fred', 'second': 'barney' });
+ * // => { 'fred': 'first', 'barney': 'second' }
+ */
+ function invert(object) {
+ var index = -1,
+ props = keys(object),
+ length = props.length,
+ result = {};
+
+ while (++index < length) {
+ var key = props[index];
+ result[object[key]] = key;
+ }
+ return result;
+ }
+
+ /**
+ * Checks if `value` is a boolean value.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a boolean value, else `false`.
+ * @example
+ *
+ * _.isBoolean(null);
+ * // => false
+ */
+ function isBoolean(value) {
+ return value === true || value === false ||
+ value && typeof value == 'object' && toString.call(value) == boolClass || false;
+ }
+
+ /**
+ * Checks if `value` is a date.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a date, else `false`.
+ * @example
+ *
+ * _.isDate(new Date);
+ * // => true
+ */
+ function isDate(value) {
+ return value && typeof value == 'object' && toString.call(value) == dateClass || false;
+ }
+
+ /**
+ * Checks if `value` is a DOM element.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a DOM element, else `false`.
+ * @example
+ *
+ * _.isElement(document.body);
+ * // => true
+ */
+ function isElement(value) {
+ return value && value.nodeType === 1 || false;
+ }
+
+ /**
+ * Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
+ * length of `0` and objects with no own enumerable properties are considered
+ * "empty".
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Array|Object|string} value The value to inspect.
+ * @returns {boolean} Returns `true` if the `value` is empty, else `false`.
+ * @example
+ *
+ * _.isEmpty([1, 2, 3]);
+ * // => false
+ *
+ * _.isEmpty({});
+ * // => true
+ *
+ * _.isEmpty('');
+ * // => true
+ */
+ function isEmpty(value) {
+ var result = true;
+ if (!value) {
+ return result;
+ }
+ var className = toString.call(value),
+ length = value.length;
+
+ if ((className == arrayClass || className == stringClass || className == argsClass ) ||
+ (className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
+ return !length;
+ }
+ forOwn(value, function() {
+ return (result = false);
+ });
+ return result;
+ }
+
+ /**
+ * Performs a deep comparison between two values to determine if they are
+ * equivalent to each other. If a callback is provided it will be executed
+ * to compare values. If the callback returns `undefined` comparisons will
+ * be handled by the method instead. The callback is bound to `thisArg` and
+ * invoked with two arguments; (a, b).
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} a The value to compare.
+ * @param {*} b The other value to compare.
+ * @param {Function} [callback] The function to customize comparing values.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'name': 'fred' };
+ * var copy = { 'name': 'fred' };
+ *
+ * object == copy;
+ * // => false
+ *
+ * _.isEqual(object, copy);
+ * // => true
+ *
+ * var words = ['hello', 'goodbye'];
+ * var otherWords = ['hi', 'goodbye'];
+ *
+ * _.isEqual(words, otherWords, function(a, b) {
+ * var reGreet = /^(?:hello|hi)$/i,
+ * aGreet = _.isString(a) && reGreet.test(a),
+ * bGreet = _.isString(b) && reGreet.test(b);
+ *
+ * return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
+ * });
+ * // => true
+ */
+ function isEqual(a, b, callback, thisArg) {
+ return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
+ }
+
+ /**
+ * Checks if `value` is, or can be coerced to, a finite number.
+ *
+ * Note: This is not the same as native `isFinite` which will return true for
+ * booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is finite, else `false`.
+ * @example
+ *
+ * _.isFinite(-101);
+ * // => true
+ *
+ * _.isFinite('10');
+ * // => true
+ *
+ * _.isFinite(true);
+ * // => false
+ *
+ * _.isFinite('');
+ * // => false
+ *
+ * _.isFinite(Infinity);
+ * // => false
+ */
+ function isFinite(value) {
+ return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
+ }
+
+ /**
+ * Checks if `value` is a function.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a function, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ */
+ function isFunction(value) {
+ return typeof value == 'function';
+ }
+
+ /**
+ * Checks if `value` is the language type of Object.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+ function isObject(value) {
+ // check if the value is the ECMAScript language type of Object
+ // http://es5.github.io/#x8
+ // and avoid a V8 bug
+ // http://code.google.com/p/v8/issues/detail?id=2291
+ return !!(value && objectTypes[typeof value]);
+ }
+
+ /**
+ * Checks if `value` is `NaN`.
+ *
+ * Note: This is not the same as native `isNaN` which will return `true` for
+ * `undefined` and other non-numeric values. See http://es5.github.io/#x15.1.2.4.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is `NaN`, else `false`.
+ * @example
+ *
+ * _.isNaN(NaN);
+ * // => true
+ *
+ * _.isNaN(new Number(NaN));
+ * // => true
+ *
+ * isNaN(undefined);
+ * // => true
+ *
+ * _.isNaN(undefined);
+ * // => false
+ */
+ function isNaN(value) {
+ // `NaN` as a primitive is the only value that is not equal to itself
+ // (perform the [[Class]] check first to avoid errors with some host objects in IE)
+ return isNumber(value) && value != +value;
+ }
+
+ /**
+ * Checks if `value` is `null`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is `null`, else `false`.
+ * @example
+ *
+ * _.isNull(null);
+ * // => true
+ *
+ * _.isNull(undefined);
+ * // => false
+ */
+ function isNull(value) {
+ return value === null;
+ }
+
+ /**
+ * Checks if `value` is a number.
+ *
+ * Note: `NaN` is considered a number. See http://es5.github.io/#x8.5.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a number, else `false`.
+ * @example
+ *
+ * _.isNumber(8.4 * 5);
+ * // => true
+ */
+ function isNumber(value) {
+ return typeof value == 'number' ||
+ value && typeof value == 'object' && toString.call(value) == numberClass || false;
+ }
+
+ /**
+ * Checks if `value` is an object created by the `Object` constructor.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+ * @example
+ *
+ * function Shape() {
+ * this.x = 0;
+ * this.y = 0;
+ * }
+ *
+ * _.isPlainObject(new Shape);
+ * // => false
+ *
+ * _.isPlainObject([1, 2, 3]);
+ * // => false
+ *
+ * _.isPlainObject({ 'x': 0, 'y': 0 });
+ * // => true
+ */
+ var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
+ if (!(value && toString.call(value) == objectClass)) {
+ return false;
+ }
+ var valueOf = value.valueOf,
+ objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
+
+ return objProto
+ ? (value == objProto || getPrototypeOf(value) == objProto)
+ : shimIsPlainObject(value);
+ };
+
+ /**
+ * Checks if `value` is a regular expression.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a regular expression, else `false`.
+ * @example
+ *
+ * _.isRegExp(/fred/);
+ * // => true
+ */
+ function isRegExp(value) {
+ return value && typeof value == 'object' && toString.call(value) == regexpClass || false;
+ }
+
+ /**
+ * Checks if `value` is a string.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is a string, else `false`.
+ * @example
+ *
+ * _.isString('fred');
+ * // => true
+ */
+ function isString(value) {
+ return typeof value == 'string' ||
+ value && typeof value == 'object' && toString.call(value) == stringClass || false;
+ }
+
+ /**
+ * Checks if `value` is `undefined`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if the `value` is `undefined`, else `false`.
+ * @example
+ *
+ * _.isUndefined(void 0);
+ * // => true
+ */
+ function isUndefined(value) {
+ return typeof value == 'undefined';
+ }
+
+ /**
+ * Creates an object with the same keys as `object` and values generated by
+ * running each own enumerable property of `object` through the callback.
+ * The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, key, object).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new object with values of the results of each `callback` execution.
+ * @example
+ *
+ * _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(num) { return num * 3; });
+ * // => { 'a': 3, 'b': 6, 'c': 9 }
+ *
+ * var characters = {
+ * 'fred': { 'name': 'fred', 'age': 40 },
+ * 'pebbles': { 'name': 'pebbles', 'age': 1 }
+ * };
+ *
+ * // using "_.pluck" callback shorthand
+ * _.mapValues(characters, 'age');
+ * // => { 'fred': 40, 'pebbles': 1 }
+ */
+ function mapValues(object, callback, thisArg) {
+ var result = {};
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ forOwn(object, function(value, key, object) {
+ result[key] = callback(value, key, object);
+ });
+ return result;
+ }
+
+ /**
+ * Recursively merges own enumerable properties of the source object(s), that
+ * don't resolve to `undefined` into the destination object. Subsequent sources
+ * will overwrite property assignments of previous sources. If a callback is
+ * provided it will be executed to produce the merged values of the destination
+ * and source properties. If the callback returns `undefined` merging will
+ * be handled by the method instead. The callback is bound to `thisArg` and
+ * invoked with two arguments; (objectValue, sourceValue).
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The destination object.
+ * @param {...Object} [source] The source objects.
+ * @param {Function} [callback] The function to customize merging properties.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns the destination object.
+ * @example
+ *
+ * var names = {
+ * 'characters': [
+ * { 'name': 'barney' },
+ * { 'name': 'fred' }
+ * ]
+ * };
+ *
+ * var ages = {
+ * 'characters': [
+ * { 'age': 36 },
+ * { 'age': 40 }
+ * ]
+ * };
+ *
+ * _.merge(names, ages);
+ * // => { 'characters': [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }] }
+ *
+ * var food = {
+ * 'fruits': ['apple'],
+ * 'vegetables': ['beet']
+ * };
+ *
+ * var otherFood = {
+ * 'fruits': ['banana'],
+ * 'vegetables': ['carrot']
+ * };
+ *
+ * _.merge(food, otherFood, function(a, b) {
+ * return _.isArray(a) ? a.concat(b) : undefined;
+ * });
+ * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
+ */
+ function merge(object) {
+ var args = arguments,
+ length = 2;
+
+ if (!isObject(object)) {
+ return object;
+ }
+ // allows working with `_.reduce` and `_.reduceRight` without using
+ // their `index` and `collection` arguments
+ if (typeof args[2] != 'number') {
+ length = args.length;
+ }
+ if (length > 3 && typeof args[length - 2] == 'function') {
+ var callback = baseCreateCallback(args[--length - 1], args[length--], 2);
+ } else if (length > 2 && typeof args[length - 1] == 'function') {
+ callback = args[--length];
+ }
+ var sources = slice(arguments, 1, length),
+ index = -1,
+ stackA = getArray(),
+ stackB = getArray();
+
+ while (++index < length) {
+ baseMerge(object, sources[index], callback, stackA, stackB);
+ }
+ releaseArray(stackA);
+ releaseArray(stackB);
+ return object;
+ }
+
+ /**
+ * Creates a shallow clone of `object` excluding the specified properties.
+ * Property names may be specified as individual arguments or as arrays of
+ * property names. If a callback is provided it will be executed for each
+ * property of `object` omitting the properties the callback returns truey
+ * for. The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, key, object).
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The source object.
+ * @param {Function|...string|string[]} [callback] The properties to omit or the
+ * function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns an object without the omitted properties.
+ * @example
+ *
+ * _.omit({ 'name': 'fred', 'age': 40 }, 'age');
+ * // => { 'name': 'fred' }
+ *
+ * _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
+ * return typeof value == 'number';
+ * });
+ * // => { 'name': 'fred' }
+ */
+ function omit(object, callback, thisArg) {
+ var result = {};
+ if (typeof callback != 'function') {
+ var props = [];
+ forIn(object, function(value, key) {
+ props.push(key);
+ });
+ props = baseDifference(props, baseFlatten(arguments, true, false, 1));
+
+ var index = -1,
+ length = props.length;
+
+ while (++index < length) {
+ var key = props[index];
+ result[key] = object[key];
+ }
+ } else {
+ callback = lodash.createCallback(callback, thisArg, 3);
+ forIn(object, function(value, key, object) {
+ if (!callback(value, key, object)) {
+ result[key] = value;
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Creates a two dimensional array of an object's key-value pairs,
+ * i.e. `[[key1, value1], [key2, value2]]`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns new array of key-value pairs.
+ * @example
+ *
+ * _.pairs({ 'barney': 36, 'fred': 40 });
+ * // => [['barney', 36], ['fred', 40]] (property order is not guaranteed across environments)
+ */
+ function pairs(object) {
+ var index = -1,
+ props = keys(object),
+ length = props.length,
+ result = Array(length);
+
+ while (++index < length) {
+ var key = props[index];
+ result[index] = [key, object[key]];
+ }
+ return result;
+ }
+
+ /**
+ * Creates a shallow clone of `object` composed of the specified properties.
+ * Property names may be specified as individual arguments or as arrays of
+ * property names. If a callback is provided it will be executed for each
+ * property of `object` picking the properties the callback returns truey
+ * for. The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, key, object).
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The source object.
+ * @param {Function|...string|string[]} [callback] The function called per
+ * iteration or property names to pick, specified as individual property
+ * names or arrays of property names.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns an object composed of the picked properties.
+ * @example
+ *
+ * _.pick({ 'name': 'fred', '_userid': 'fred1' }, 'name');
+ * // => { 'name': 'fred' }
+ *
+ * _.pick({ 'name': 'fred', '_userid': 'fred1' }, function(value, key) {
+ * return key.charAt(0) != '_';
+ * });
+ * // => { 'name': 'fred' }
+ */
+ function pick(object, callback, thisArg) {
+ var result = {};
+ if (typeof callback != 'function') {
+ var index = -1,
+ props = baseFlatten(arguments, true, false, 1),
+ length = isObject(object) ? props.length : 0;
+
+ while (++index < length) {
+ var key = props[index];
+ if (key in object) {
+ result[key] = object[key];
+ }
+ }
+ } else {
+ callback = lodash.createCallback(callback, thisArg, 3);
+ forIn(object, function(value, key, object) {
+ if (callback(value, key, object)) {
+ result[key] = value;
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * An alternative to `_.reduce` this method transforms `object` to a new
+ * `accumulator` object which is the result of running each of its own
+ * enumerable properties through a callback, with each callback execution
+ * potentially mutating the `accumulator` object. The callback is bound to
+ * `thisArg` and invoked with four arguments; (accumulator, value, key, object).
+ * Callbacks may exit iteration early by explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Array|Object} object The object to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [accumulator] The custom accumulator value.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the accumulated value.
+ * @example
+ *
+ * var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
+ * num *= num;
+ * if (num % 2) {
+ * return result.push(num) < 3;
+ * }
+ * });
+ * // => [1, 9, 25]
+ *
+ * var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+ * result[key] = num * 3;
+ * });
+ * // => { 'a': 3, 'b': 6, 'c': 9 }
+ */
+ function transform(object, callback, accumulator, thisArg) {
+ var isArr = isArray(object);
+ if (accumulator == null) {
+ if (isArr) {
+ accumulator = [];
+ } else {
+ var ctor = object && object.constructor,
+ proto = ctor && ctor.prototype;
+
+ accumulator = baseCreate(proto);
+ }
+ }
+ if (callback) {
+ callback = lodash.createCallback(callback, thisArg, 4);
+ (isArr ? forEach : forOwn)(object, function(value, index, object) {
+ return callback(accumulator, value, index, object);
+ });
+ }
+ return accumulator;
+ }
+
+ /**
+ * Creates an array composed of the own enumerable property values of `object`.
+ *
+ * @static
+ * @memberOf _
+ * @category Objects
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns an array of property values.
+ * @example
+ *
+ * _.values({ 'one': 1, 'two': 2, 'three': 3 });
+ * // => [1, 2, 3] (property order is not guaranteed across environments)
+ */
+ function values(object) {
+ var index = -1,
+ props = keys(object),
+ length = props.length,
+ result = Array(length);
+
+ while (++index < length) {
+ result[index] = object[props[index]];
+ }
+ return result;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Creates an array of elements from the specified indexes, or keys, of the
+ * `collection`. Indexes may be specified as individual arguments or as arrays
+ * of indexes.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {...(number|number[]|string|string[])} [index] The indexes of `collection`
+ * to retrieve, specified as individual indexes or arrays of indexes.
+ * @returns {Array} Returns a new array of elements corresponding to the
+ * provided indexes.
+ * @example
+ *
+ * _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
+ * // => ['a', 'c', 'e']
+ *
+ * _.at(['fred', 'barney', 'pebbles'], 0, 2);
+ * // => ['fred', 'pebbles']
+ */
+ function at(collection) {
+ var args = arguments,
+ index = -1,
+ props = baseFlatten(args, true, false, 1),
+ length = (args[2] && args[2][args[1]] === collection) ? 1 : props.length,
+ result = Array(length);
+
+ while(++index < length) {
+ result[index] = collection[props[index]];
+ }
+ return result;
+ }
+
+ /**
+ * Checks if a given value is present in a collection using strict equality
+ * for comparisons, i.e. `===`. If `fromIndex` is negative, it is used as the
+ * offset from the end of the collection.
+ *
+ * @static
+ * @memberOf _
+ * @alias include
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {*} target The value to check for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {boolean} Returns `true` if the `target` element is found, else `false`.
+ * @example
+ *
+ * _.contains([1, 2, 3], 1);
+ * // => true
+ *
+ * _.contains([1, 2, 3], 1, 2);
+ * // => false
+ *
+ * _.contains({ 'name': 'fred', 'age': 40 }, 'fred');
+ * // => true
+ *
+ * _.contains('pebbles', 'eb');
+ * // => true
+ */
+ function contains(collection, target, fromIndex) {
+ var index = -1,
+ indexOf = getIndexOf(),
+ length = collection ? collection.length : 0,
+ result = false;
+
+ fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
+ if (isArray(collection)) {
+ result = indexOf(collection, target, fromIndex) > -1;
+ } else if (typeof length == 'number') {
+ result = (isString(collection) ? collection.indexOf(target, fromIndex) : indexOf(collection, target, fromIndex)) > -1;
+ } else {
+ forOwn(collection, function(value) {
+ if (++index >= fromIndex) {
+ return !(result = value === target);
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of `collection` through the callback. The corresponding value
+ * of each key is the number of times the key was returned by the callback.
+ * The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
+ * // => { '4': 1, '6': 2 }
+ *
+ * _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+ * // => { '4': 1, '6': 2 }
+ *
+ * _.countBy(['one', 'two', 'three'], 'length');
+ * // => { '3': 2, '5': 1 }
+ */
+ var countBy = createAggregator(function(result, value, key) {
+ (hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1);
+ });
+
+ /**
+ * Checks if the given callback returns truey value for **all** elements of
+ * a collection. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias all
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {boolean} Returns `true` if all elements passed the callback check,
+ * else `false`.
+ * @example
+ *
+ * _.every([true, 1, null, 'yes']);
+ * // => false
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.every(characters, 'age');
+ * // => true
+ *
+ * // using "_.where" callback shorthand
+ * _.every(characters, { 'age': 36 });
+ * // => false
+ */
+ function every(collection, callback, thisArg) {
+ var result = true;
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ if (typeof length == 'number') {
+ while (++index < length) {
+ if (!(result = !!callback(collection[index], index, collection))) {
+ break;
+ }
+ }
+ } else {
+ forOwn(collection, function(value, index, collection) {
+ return (result = !!callback(value, index, collection));
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Iterates over elements of a collection, returning an array of all elements
+ * the callback returns truey for. The callback is bound to `thisArg` and
+ * invoked with three arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias select
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new array of elements that passed the callback check.
+ * @example
+ *
+ * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+ * // => [2, 4, 6]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': false },
+ * { 'name': 'fred', 'age': 40, 'blocked': true }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.filter(characters, 'blocked');
+ * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+ *
+ * // using "_.where" callback shorthand
+ * _.filter(characters, { 'age': 36 });
+ * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+ */
+ function filter(collection, callback, thisArg) {
+ var result = [];
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ if (typeof length == 'number') {
+ while (++index < length) {
+ var value = collection[index];
+ if (callback(value, index, collection)) {
+ result.push(value);
+ }
+ }
+ } else {
+ forOwn(collection, function(value, index, collection) {
+ if (callback(value, index, collection)) {
+ result.push(value);
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Iterates over elements of a collection, returning the first element that
+ * the callback returns truey for. The callback is bound to `thisArg` and
+ * invoked with three arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias detect, findWhere
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the found element, else `undefined`.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': false },
+ * { 'name': 'fred', 'age': 40, 'blocked': true },
+ * { 'name': 'pebbles', 'age': 1, 'blocked': false }
+ * ];
+ *
+ * _.find(characters, function(chr) {
+ * return chr.age < 40;
+ * });
+ * // => { 'name': 'barney', 'age': 36, 'blocked': false }
+ *
+ * // using "_.where" callback shorthand
+ * _.find(characters, { 'age': 1 });
+ * // => { 'name': 'pebbles', 'age': 1, 'blocked': false }
+ *
+ * // using "_.pluck" callback shorthand
+ * _.find(characters, 'blocked');
+ * // => { 'name': 'fred', 'age': 40, 'blocked': true }
+ */
+ function find(collection, callback, thisArg) {
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ if (typeof length == 'number') {
+ while (++index < length) {
+ var value = collection[index];
+ if (callback(value, index, collection)) {
+ return value;
+ }
+ }
+ } else {
+ var result;
+ forOwn(collection, function(value, index, collection) {
+ if (callback(value, index, collection)) {
+ result = value;
+ return false;
+ }
+ });
+ return result;
+ }
+ }
+
+ /**
+ * This method is like `_.find` except that it iterates over elements
+ * of a `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the found element, else `undefined`.
+ * @example
+ *
+ * _.findLast([1, 2, 3, 4], function(num) {
+ * return num % 2 == 1;
+ * });
+ * // => 3
+ */
+ function findLast(collection, callback, thisArg) {
+ var result;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ forEachRight(collection, function(value, index, collection) {
+ if (callback(value, index, collection)) {
+ result = value;
+ return false;
+ }
+ });
+ return result;
+ }
+
+ /**
+ * Iterates over elements of a collection, executing the callback for each
+ * element. The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, index|key, collection). Callbacks may exit iteration early by
+ * explicitly returning `false`.
+ *
+ * Note: As with other "Collections" methods, objects with a `length` property
+ * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
+ * may be used for object iteration.
+ *
+ * @static
+ * @memberOf _
+ * @alias each
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array|Object|string} Returns `collection`.
+ * @example
+ *
+ * _([1, 2, 3]).forEach(function(num) { console.log(num); }).join(',');
+ * // => logs each number and returns '1,2,3'
+ *
+ * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { console.log(num); });
+ * // => logs each number and returns the object (property order is not guaranteed across environments)
+ */
+ function forEach(collection, callback, thisArg) {
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+ if (typeof length == 'number') {
+ while (++index < length) {
+ if (callback(collection[index], index, collection) === false) {
+ break;
+ }
+ }
+ } else {
+ forOwn(collection, callback);
+ }
+ return collection;
+ }
+
+ /**
+ * This method is like `_.forEach` except that it iterates over elements
+ * of a `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @alias eachRight
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array|Object|string} Returns `collection`.
+ * @example
+ *
+ * _([1, 2, 3]).forEachRight(function(num) { console.log(num); }).join(',');
+ * // => logs each number from right to left and returns '3,2,1'
+ */
+ function forEachRight(collection, callback, thisArg) {
+ var length = collection ? collection.length : 0;
+ callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3);
+ if (typeof length == 'number') {
+ while (length--) {
+ if (callback(collection[length], length, collection) === false) {
+ break;
+ }
+ }
+ } else {
+ var props = keys(collection);
+ length = props.length;
+ forOwn(collection, function(value, key, collection) {
+ key = props ? props[--length] : --length;
+ return callback(collection[key], key, collection);
+ });
+ }
+ return collection;
+ }
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of a collection through the callback. The corresponding value
+ * of each key is an array of the elements responsible for generating the key.
+ * The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
+ * // => { '4': [4.2], '6': [6.1, 6.4] }
+ *
+ * _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
+ * // => { '4': [4.2], '6': [6.1, 6.4] }
+ *
+ * // using "_.pluck" callback shorthand
+ * _.groupBy(['one', 'two', 'three'], 'length');
+ * // => { '3': ['one', 'two'], '5': ['three'] }
+ */
+ var groupBy = createAggregator(function(result, value, key) {
+ (hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
+ });
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of the collection through the given callback. The corresponding
+ * value of each key is the last element responsible for generating the key.
+ * The callback is bound to `thisArg` and invoked with three arguments;
+ * (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * var keys = [
+ * { 'dir': 'left', 'code': 97 },
+ * { 'dir': 'right', 'code': 100 }
+ * ];
+ *
+ * _.indexBy(keys, 'dir');
+ * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+ *
+ * _.indexBy(keys, function(key) { return String.fromCharCode(key.code); });
+ * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+ *
+ * _.indexBy(characters, function(key) { this.fromCharCode(key.code); }, String);
+ * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+ */
+ var indexBy = createAggregator(function(result, value, key) {
+ result[key] = value;
+ });
+
+ /**
+ * Invokes the method named by `methodName` on each element in the `collection`
+ * returning an array of the results of each invoked method. Additional arguments
+ * will be provided to each invoked method. If `methodName` is a function it
+ * will be invoked for, and `this` bound to, each element in the `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|string} methodName The name of the method to invoke or
+ * the function invoked per iteration.
+ * @param {...*} [arg] Arguments to invoke the method with.
+ * @returns {Array} Returns a new array of the results of each invoked method.
+ * @example
+ *
+ * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
+ * // => [[1, 5, 7], [1, 2, 3]]
+ *
+ * _.invoke([123, 456], String.prototype.split, '');
+ * // => [['1', '2', '3'], ['4', '5', '6']]
+ */
+ function invoke(collection, methodName) {
+ var args = slice(arguments, 2),
+ index = -1,
+ isFunc = typeof methodName == 'function',
+ length = collection ? collection.length : 0,
+ result = Array(typeof length == 'number' ? length : 0);
+
+ forEach(collection, function(value) {
+ result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
+ });
+ return result;
+ }
+
+ /**
+ * Creates an array of values by running each element in the collection
+ * through the callback. The callback is bound to `thisArg` and invoked with
+ * three arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias collect
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new array of the results of each `callback` execution.
+ * @example
+ *
+ * _.map([1, 2, 3], function(num) { return num * 3; });
+ * // => [3, 6, 9]
+ *
+ * _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
+ * // => [3, 6, 9] (property order is not guaranteed across environments)
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.map(characters, 'name');
+ * // => ['barney', 'fred']
+ */
+ function map(collection, callback, thisArg) {
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ callback = lodash.createCallback(callback, thisArg, 3);
+ if (typeof length == 'number') {
+ var result = Array(length);
+ while (++index < length) {
+ result[index] = callback(collection[index], index, collection);
+ }
+ } else {
+ result = [];
+ forOwn(collection, function(value, key, collection) {
+ result[++index] = callback(value, key, collection);
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Retrieves the maximum value of a collection. If the collection is empty or
+ * falsey `-Infinity` is returned. If a callback is provided it will be executed
+ * for each value in the collection to generate the criterion by which the value
+ * is ranked. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, index, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the maximum value.
+ * @example
+ *
+ * _.max([4, 2, 8, 6]);
+ * // => 8
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * _.max(characters, function(chr) { return chr.age; });
+ * // => { 'name': 'fred', 'age': 40 };
+ *
+ * // using "_.pluck" callback shorthand
+ * _.max(characters, 'age');
+ * // => { 'name': 'fred', 'age': 40 };
+ */
+ function max(collection, callback, thisArg) {
+ var computed = -Infinity,
+ result = computed;
+
+ // allows working with functions like `_.map` without using
+ // their `index` argument as a callback
+ if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+ callback = null;
+ }
+ if (callback == null && isArray(collection)) {
+ var index = -1,
+ length = collection.length;
+
+ while (++index < length) {
+ var value = collection[index];
+ if (value > result) {
+ result = value;
+ }
+ }
+ } else {
+ callback = (callback == null && isString(collection))
+ ? charAtCallback
+ : lodash.createCallback(callback, thisArg, 3);
+
+ forEach(collection, function(value, index, collection) {
+ var current = callback(value, index, collection);
+ if (current > computed) {
+ computed = current;
+ result = value;
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Retrieves the minimum value of a collection. If the collection is empty or
+ * falsey `Infinity` is returned. If a callback is provided it will be executed
+ * for each value in the collection to generate the criterion by which the value
+ * is ranked. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, index, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the minimum value.
+ * @example
+ *
+ * _.min([4, 2, 8, 6]);
+ * // => 2
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * _.min(characters, function(chr) { return chr.age; });
+ * // => { 'name': 'barney', 'age': 36 };
+ *
+ * // using "_.pluck" callback shorthand
+ * _.min(characters, 'age');
+ * // => { 'name': 'barney', 'age': 36 };
+ */
+ function min(collection, callback, thisArg) {
+ var computed = Infinity,
+ result = computed;
+
+ // allows working with functions like `_.map` without using
+ // their `index` argument as a callback
+ if (typeof callback != 'function' && thisArg && thisArg[callback] === collection) {
+ callback = null;
+ }
+ if (callback == null && isArray(collection)) {
+ var index = -1,
+ length = collection.length;
+
+ while (++index < length) {
+ var value = collection[index];
+ if (value < result) {
+ result = value;
+ }
+ }
+ } else {
+ callback = (callback == null && isString(collection))
+ ? charAtCallback
+ : lodash.createCallback(callback, thisArg, 3);
+
+ forEach(collection, function(value, index, collection) {
+ var current = callback(value, index, collection);
+ if (current < computed) {
+ computed = current;
+ result = value;
+ }
+ });
+ }
+ return result;
+ }
+
+ /**
+ * Retrieves the value of a specified property from all elements in the collection.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {string} property The name of the property to pluck.
+ * @returns {Array} Returns a new array of property values.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * _.pluck(characters, 'name');
+ * // => ['barney', 'fred']
+ */
+ var pluck = map;
+
+ /**
+ * Reduces a collection to a value which is the accumulated result of running
+ * each element in the collection through the callback, where each successive
+ * callback execution consumes the return value of the previous execution. If
+ * `accumulator` is not provided the first element of the collection will be
+ * used as the initial `accumulator` value. The callback is bound to `thisArg`
+ * and invoked with four arguments; (accumulator, value, index|key, collection).
+ *
+ * @static
+ * @memberOf _
+ * @alias foldl, inject
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [accumulator] Initial value of the accumulator.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the accumulated value.
+ * @example
+ *
+ * var sum = _.reduce([1, 2, 3], function(sum, num) {
+ * return sum + num;
+ * });
+ * // => 6
+ *
+ * var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
+ * result[key] = num * 3;
+ * return result;
+ * }, {});
+ * // => { 'a': 3, 'b': 6, 'c': 9 }
+ */
+ function reduce(collection, callback, accumulator, thisArg) {
+ if (!collection) return accumulator;
+ var noaccum = arguments.length < 3;
+ callback = lodash.createCallback(callback, thisArg, 4);
+
+ var index = -1,
+ length = collection.length;
+
+ if (typeof length == 'number') {
+ if (noaccum) {
+ accumulator = collection[++index];
+ }
+ while (++index < length) {
+ accumulator = callback(accumulator, collection[index], index, collection);
+ }
+ } else {
+ forOwn(collection, function(value, index, collection) {
+ accumulator = noaccum
+ ? (noaccum = false, value)
+ : callback(accumulator, value, index, collection)
+ });
+ }
+ return accumulator;
+ }
+
+ /**
+ * This method is like `_.reduce` except that it iterates over elements
+ * of a `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @alias foldr
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} [callback=identity] The function called per iteration.
+ * @param {*} [accumulator] Initial value of the accumulator.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the accumulated value.
+ * @example
+ *
+ * var list = [[0, 1], [2, 3], [4, 5]];
+ * var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
+ * // => [4, 5, 2, 3, 0, 1]
+ */
+ function reduceRight(collection, callback, accumulator, thisArg) {
+ var noaccum = arguments.length < 3;
+ callback = lodash.createCallback(callback, thisArg, 4);
+ forEachRight(collection, function(value, index, collection) {
+ accumulator = noaccum
+ ? (noaccum = false, value)
+ : callback(accumulator, value, index, collection);
+ });
+ return accumulator;
+ }
+
+ /**
+ * The opposite of `_.filter` this method returns the elements of a
+ * collection that the callback does **not** return truey for.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new array of elements that failed the callback check.
+ * @example
+ *
+ * var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
+ * // => [1, 3, 5]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': false },
+ * { 'name': 'fred', 'age': 40, 'blocked': true }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.reject(characters, 'blocked');
+ * // => [{ 'name': 'barney', 'age': 36, 'blocked': false }]
+ *
+ * // using "_.where" callback shorthand
+ * _.reject(characters, { 'age': 36 });
+ * // => [{ 'name': 'fred', 'age': 40, 'blocked': true }]
+ */
+ function reject(collection, callback, thisArg) {
+ callback = lodash.createCallback(callback, thisArg, 3);
+ return filter(collection, function(value, index, collection) {
+ return !callback(value, index, collection);
+ });
+ }
+
+ /**
+ * Retrieves a random element or `n` random elements from a collection.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to sample.
+ * @param {number} [n] The number of elements to sample.
+ * @param- {Object} [guard] Allows working with functions like `_.map`
+ * without using their `index` arguments as `n`.
+ * @returns {Array} Returns the random sample(s) of `collection`.
+ * @example
+ *
+ * _.sample([1, 2, 3, 4]);
+ * // => 2
+ *
+ * _.sample([1, 2, 3, 4], 2);
+ * // => [3, 1]
+ */
+ function sample(collection, n, guard) {
+ if (collection && typeof collection.length != 'number') {
+ collection = values(collection);
+ }
+ if (n == null || guard) {
+ return collection ? collection[baseRandom(0, collection.length - 1)] : undefined;
+ }
+ var result = shuffle(collection);
+ result.length = nativeMin(nativeMax(0, n), result.length);
+ return result;
+ }
+
+ /**
+ * Creates an array of shuffled values, using a version of the Fisher-Yates
+ * shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to shuffle.
+ * @returns {Array} Returns a new shuffled collection.
+ * @example
+ *
+ * _.shuffle([1, 2, 3, 4, 5, 6]);
+ * // => [4, 1, 6, 3, 5, 2]
+ */
+ function shuffle(collection) {
+ var index = -1,
+ length = collection ? collection.length : 0,
+ result = Array(typeof length == 'number' ? length : 0);
+
+ forEach(collection, function(value) {
+ var rand = baseRandom(0, ++index);
+ result[index] = result[rand];
+ result[rand] = value;
+ });
+ return result;
+ }
+
+ /**
+ * Gets the size of the `collection` by returning `collection.length` for arrays
+ * and array-like objects or the number of own enumerable properties for objects.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to inspect.
+ * @returns {number} Returns `collection.length` or number of own enumerable properties.
+ * @example
+ *
+ * _.size([1, 2]);
+ * // => 2
+ *
+ * _.size({ 'one': 1, 'two': 2, 'three': 3 });
+ * // => 3
+ *
+ * _.size('pebbles');
+ * // => 7
+ */
+ function size(collection) {
+ var length = collection ? collection.length : 0;
+ return typeof length == 'number' ? length : keys(collection).length;
+ }
+
+ /**
+ * Checks if the callback returns a truey value for **any** element of a
+ * collection. The function returns as soon as it finds a passing value and
+ * does not iterate over the entire collection. The callback is bound to
+ * `thisArg` and invoked with three arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias any
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {boolean} Returns `true` if any element passed the callback check,
+ * else `false`.
+ * @example
+ *
+ * _.some([null, 0, 'yes', false], Boolean);
+ * // => true
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': false },
+ * { 'name': 'fred', 'age': 40, 'blocked': true }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.some(characters, 'blocked');
+ * // => true
+ *
+ * // using "_.where" callback shorthand
+ * _.some(characters, { 'age': 1 });
+ * // => false
+ */
+ function some(collection, callback, thisArg) {
+ var result;
+ callback = lodash.createCallback(callback, thisArg, 3);
+
+ var index = -1,
+ length = collection ? collection.length : 0;
+
+ if (typeof length == 'number') {
+ while (++index < length) {
+ if ((result = callback(collection[index], index, collection))) {
+ break;
+ }
+ }
+ } else {
+ forOwn(collection, function(value, index, collection) {
+ return !(result = callback(value, index, collection));
+ });
+ }
+ return !!result;
+ }
+
+ /**
+ * Creates an array of elements, sorted in ascending order by the results of
+ * running each element in a collection through the callback. This method
+ * performs a stable sort, that is, it will preserve the original sort order
+ * of equal elements. The callback is bound to `thisArg` and invoked with
+ * three arguments; (value, index|key, collection).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an array of property names is provided for `callback` the collection
+ * will be sorted by each property value.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Array|Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new array of sorted elements.
+ * @example
+ *
+ * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
+ * // => [3, 1, 2]
+ *
+ * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
+ * // => [3, 1, 2]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 },
+ * { 'name': 'barney', 'age': 26 },
+ * { 'name': 'fred', 'age': 30 }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.map(_.sortBy(characters, 'age'), _.values);
+ * // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
+ *
+ * // sorting by multiple properties
+ * _.map(_.sortBy(characters, ['name', 'age']), _.values);
+ * // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
+ */
+ function sortBy(collection, callback, thisArg) {
+ var index = -1,
+ isArr = isArray(callback),
+ length = collection ? collection.length : 0,
+ result = Array(typeof length == 'number' ? length : 0);
+
+ if (!isArr) {
+ callback = lodash.createCallback(callback, thisArg, 3);
+ }
+ forEach(collection, function(value, key, collection) {
+ var object = result[++index] = getObject();
+ if (isArr) {
+ object.criteria = map(callback, function(key) { return value[key]; });
+ } else {
+ (object.criteria = getArray())[0] = callback(value, key, collection);
+ }
+ object.index = index;
+ object.value = value;
+ });
+
+ length = result.length;
+ result.sort(compareAscending);
+ while (length--) {
+ var object = result[length];
+ result[length] = object.value;
+ if (!isArr) {
+ releaseArray(object.criteria);
+ }
+ releaseObject(object);
+ }
+ return result;
+ }
+
+ /**
+ * Converts the `collection` to an array.
+ *
+ * @static
+ * @memberOf _
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to convert.
+ * @returns {Array} Returns the new converted array.
+ * @example
+ *
+ * (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
+ * // => [2, 3, 4]
+ */
+ function toArray(collection) {
+ if (collection && typeof collection.length == 'number') {
+ return slice(collection);
+ }
+ return values(collection);
+ }
+
+ /**
+ * Performs a deep comparison of each element in a `collection` to the given
+ * `properties` object, returning an array of all elements that have equivalent
+ * property values.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Collections
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Object} props The object of property values to filter by.
+ * @returns {Array} Returns a new array of elements that have the given properties.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'pets': ['hoppy'] },
+ * { 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }
+ * ];
+ *
+ * _.where(characters, { 'age': 36 });
+ * // => [{ 'name': 'barney', 'age': 36, 'pets': ['hoppy'] }]
+ *
+ * _.where(characters, { 'pets': ['dino'] });
+ * // => [{ 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }]
+ */
+ var where = filter;
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Creates an array with all falsey values removed. The values `false`, `null`,
+ * `0`, `""`, `undefined`, and `NaN` are all falsey.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to compact.
+ * @returns {Array} Returns a new array of filtered values.
+ * @example
+ *
+ * _.compact([0, 1, false, 2, '', 3]);
+ * // => [1, 2, 3]
+ */
+ function compact(array) {
+ var index = -1,
+ length = array ? array.length : 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+ if (value) {
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Creates an array excluding all values of the provided arrays using strict
+ * equality for comparisons, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to process.
+ * @param {...Array} [values] The arrays of values to exclude.
+ * @returns {Array} Returns a new array of filtered values.
+ * @example
+ *
+ * _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
+ * // => [1, 3, 4]
+ */
+ function difference(array) {
+ return baseDifference(array, baseFlatten(arguments, true, true, 1));
+ }
+
+ /**
+ * This method is like `_.find` except that it returns the index of the first
+ * element that passes the callback check, instead of the element itself.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to search.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {number} Returns the index of the found element, else `-1`.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': false },
+ * { 'name': 'fred', 'age': 40, 'blocked': true },
+ * { 'name': 'pebbles', 'age': 1, 'blocked': false }
+ * ];
+ *
+ * _.findIndex(characters, function(chr) {
+ * return chr.age < 20;
+ * });
+ * // => 2
+ *
+ * // using "_.where" callback shorthand
+ * _.findIndex(characters, { 'age': 36 });
+ * // => 0
+ *
+ * // using "_.pluck" callback shorthand
+ * _.findIndex(characters, 'blocked');
+ * // => 1
+ */
+ function findIndex(array, callback, thisArg) {
+ var index = -1,
+ length = array ? array.length : 0;
+
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (++index < length) {
+ if (callback(array[index], index, array)) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * This method is like `_.findIndex` except that it iterates over elements
+ * of a `collection` from right to left.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to search.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {number} Returns the index of the found element, else `-1`.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36, 'blocked': true },
+ * { 'name': 'fred', 'age': 40, 'blocked': false },
+ * { 'name': 'pebbles', 'age': 1, 'blocked': true }
+ * ];
+ *
+ * _.findLastIndex(characters, function(chr) {
+ * return chr.age > 30;
+ * });
+ * // => 1
+ *
+ * // using "_.where" callback shorthand
+ * _.findLastIndex(characters, { 'age': 36 });
+ * // => 0
+ *
+ * // using "_.pluck" callback shorthand
+ * _.findLastIndex(characters, 'blocked');
+ * // => 2
+ */
+ function findLastIndex(array, callback, thisArg) {
+ var length = array ? array.length : 0;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (length--) {
+ if (callback(array[length], length, array)) {
+ return length;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Gets the first element or first `n` elements of an array. If a callback
+ * is provided elements at the beginning of the array are returned as long
+ * as the callback returns truey. The callback is bound to `thisArg` and
+ * invoked with three arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias head, take
+ * @category Arrays
+ * @param {Array} array The array to query.
+ * @param {Function|Object|number|string} [callback] The function called
+ * per element or the number of elements to return. If a property name or
+ * object is provided it will be used to create a "_.pluck" or "_.where"
+ * style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the first element(s) of `array`.
+ * @example
+ *
+ * _.first([1, 2, 3]);
+ * // => 1
+ *
+ * _.first([1, 2, 3], 2);
+ * // => [1, 2]
+ *
+ * _.first([1, 2, 3], function(num) {
+ * return num < 3;
+ * });
+ * // => [1, 2]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'blocked': true, 'employer': 'slate' },
+ * { 'name': 'fred', 'blocked': false, 'employer': 'slate' },
+ * { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.first(characters, 'blocked');
+ * // => [{ 'name': 'barney', 'blocked': true, 'employer': 'slate' }]
+ *
+ * // using "_.where" callback shorthand
+ * _.pluck(_.first(characters, { 'employer': 'slate' }), 'name');
+ * // => ['barney', 'fred']
+ */
+ function first(array, callback, thisArg) {
+ var n = 0,
+ length = array ? array.length : 0;
+
+ if (typeof callback != 'number' && callback != null) {
+ var index = -1;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (++index < length && callback(array[index], index, array)) {
+ n++;
+ }
+ } else {
+ n = callback;
+ if (n == null || thisArg) {
+ return array ? array[0] : undefined;
+ }
+ }
+ return slice(array, 0, nativeMin(nativeMax(0, n), length));
+ }
+
+ /**
+ * Flattens a nested array (the nesting can be to any depth). If `isShallow`
+ * is truey, the array will only be flattened a single level. If a callback
+ * is provided each element of the array is passed through the callback before
+ * flattening. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to flatten.
+ * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new flattened array.
+ * @example
+ *
+ * _.flatten([1, [2], [3, [[4]]]]);
+ * // => [1, 2, 3, 4];
+ *
+ * _.flatten([1, [2], [3, [[4]]]], true);
+ * // => [1, 2, 3, [[4]]];
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 30, 'pets': ['hoppy'] },
+ * { 'name': 'fred', 'age': 40, 'pets': ['baby puss', 'dino'] }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.flatten(characters, 'pets');
+ * // => ['hoppy', 'baby puss', 'dino']
+ */
+ function flatten(array, isShallow, callback, thisArg) {
+ // juggle arguments
+ if (typeof isShallow != 'boolean' && isShallow != null) {
+ thisArg = callback;
+ callback = (typeof isShallow != 'function' && thisArg && thisArg[isShallow] === array) ? null : isShallow;
+ isShallow = false;
+ }
+ if (callback != null) {
+ array = map(array, callback, thisArg);
+ }
+ return baseFlatten(array, isShallow);
+ }
+
+ /**
+ * Gets the index at which the first occurrence of `value` is found using
+ * strict equality for comparisons, i.e. `===`. If the array is already sorted
+ * providing `true` for `fromIndex` will run a faster binary search.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to search.
+ * @param {*} value The value to search for.
+ * @param {boolean|number} [fromIndex=0] The index to search from or `true`
+ * to perform a binary search on a sorted array.
+ * @returns {number} Returns the index of the matched value or `-1`.
+ * @example
+ *
+ * _.indexOf([1, 2, 3, 1, 2, 3], 2);
+ * // => 1
+ *
+ * _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
+ * // => 4
+ *
+ * _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
+ * // => 2
+ */
+ function indexOf(array, value, fromIndex) {
+ if (typeof fromIndex == 'number') {
+ var length = array ? array.length : 0;
+ fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
+ } else if (fromIndex) {
+ var index = sortedIndex(array, value);
+ return array[index] === value ? index : -1;
+ }
+ return baseIndexOf(array, value, fromIndex);
+ }
+
+ /**
+ * Gets all but the last element or last `n` elements of an array. If a
+ * callback is provided elements at the end of the array are excluded from
+ * the result as long as the callback returns truey. The callback is bound
+ * to `thisArg` and invoked with three arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to query.
+ * @param {Function|Object|number|string} [callback=1] The function called
+ * per element or the number of elements to exclude. If a property name or
+ * object is provided it will be used to create a "_.pluck" or "_.where"
+ * style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a slice of `array`.
+ * @example
+ *
+ * _.initial([1, 2, 3]);
+ * // => [1, 2]
+ *
+ * _.initial([1, 2, 3], 2);
+ * // => [1]
+ *
+ * _.initial([1, 2, 3], function(num) {
+ * return num > 1;
+ * });
+ * // => [1]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'blocked': false, 'employer': 'slate' },
+ * { 'name': 'fred', 'blocked': true, 'employer': 'slate' },
+ * { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.initial(characters, 'blocked');
+ * // => [{ 'name': 'barney', 'blocked': false, 'employer': 'slate' }]
+ *
+ * // using "_.where" callback shorthand
+ * _.pluck(_.initial(characters, { 'employer': 'na' }), 'name');
+ * // => ['barney', 'fred']
+ */
+ function initial(array, callback, thisArg) {
+ var n = 0,
+ length = array ? array.length : 0;
+
+ if (typeof callback != 'number' && callback != null) {
+ var index = length;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (index-- && callback(array[index], index, array)) {
+ n++;
+ }
+ } else {
+ n = (callback == null || thisArg) ? 1 : callback || n;
+ }
+ return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
+ }
+
+ /**
+ * Creates an array of unique values present in all provided arrays using
+ * strict equality for comparisons, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {...Array} [array] The arrays to inspect.
+ * @returns {Array} Returns an array of shared values.
+ * @example
+ *
+ * _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+ * // => [1, 2]
+ */
+ function intersection() {
+ var args = [],
+ argsIndex = -1,
+ argsLength = arguments.length,
+ caches = getArray(),
+ indexOf = getIndexOf(),
+ trustIndexOf = indexOf === baseIndexOf,
+ seen = getArray();
+
+ while (++argsIndex < argsLength) {
+ var value = arguments[argsIndex];
+ if (isArray(value) || isArguments(value)) {
+ args.push(value);
+ caches.push(trustIndexOf && value.length >= largeArraySize &&
+ createCache(argsIndex ? args[argsIndex] : seen));
+ }
+ }
+ var array = args[0],
+ index = -1,
+ length = array ? array.length : 0,
+ result = [];
+
+ outer:
+ while (++index < length) {
+ var cache = caches[0];
+ value = array[index];
+
+ if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
+ argsIndex = argsLength;
+ (cache || seen).push(value);
+ while (--argsIndex) {
+ cache = caches[argsIndex];
+ if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
+ continue outer;
+ }
+ }
+ result.push(value);
+ }
+ }
+ while (argsLength--) {
+ cache = caches[argsLength];
+ if (cache) {
+ releaseObject(cache);
+ }
+ }
+ releaseArray(caches);
+ releaseArray(seen);
+ return result;
+ }
+
+ /**
+ * Gets the last element or last `n` elements of an array. If a callback is
+ * provided elements at the end of the array are returned as long as the
+ * callback returns truey. The callback is bound to `thisArg` and invoked
+ * with three arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to query.
+ * @param {Function|Object|number|string} [callback] The function called
+ * per element or the number of elements to return. If a property name or
+ * object is provided it will be used to create a "_.pluck" or "_.where"
+ * style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {*} Returns the last element(s) of `array`.
+ * @example
+ *
+ * _.last([1, 2, 3]);
+ * // => 3
+ *
+ * _.last([1, 2, 3], 2);
+ * // => [2, 3]
+ *
+ * _.last([1, 2, 3], function(num) {
+ * return num > 1;
+ * });
+ * // => [2, 3]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'blocked': false, 'employer': 'slate' },
+ * { 'name': 'fred', 'blocked': true, 'employer': 'slate' },
+ * { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.pluck(_.last(characters, 'blocked'), 'name');
+ * // => ['fred', 'pebbles']
+ *
+ * // using "_.where" callback shorthand
+ * _.last(characters, { 'employer': 'na' });
+ * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+ */
+ function last(array, callback, thisArg) {
+ var n = 0,
+ length = array ? array.length : 0;
+
+ if (typeof callback != 'number' && callback != null) {
+ var index = length;
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (index-- && callback(array[index], index, array)) {
+ n++;
+ }
+ } else {
+ n = callback;
+ if (n == null || thisArg) {
+ return array ? array[length - 1] : undefined;
+ }
+ }
+ return slice(array, nativeMax(0, length - n));
+ }
+
+ /**
+ * Gets the index at which the last occurrence of `value` is found using strict
+ * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
+ * as the offset from the end of the collection.
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to search.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=array.length-1] The index to search from.
+ * @returns {number} Returns the index of the matched value or `-1`.
+ * @example
+ *
+ * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
+ * // => 4
+ *
+ * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
+ * // => 1
+ */
+ function lastIndexOf(array, value, fromIndex) {
+ var index = array ? array.length : 0;
+ if (typeof fromIndex == 'number') {
+ index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
+ }
+ while (index--) {
+ if (array[index] === value) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Removes all provided values from the given array using strict equality for
+ * comparisons, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to modify.
+ * @param {...*} [value] The values to remove.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = [1, 2, 3, 1, 2, 3];
+ * _.pull(array, 2, 3);
+ * console.log(array);
+ * // => [1, 1]
+ */
+ function pull(array) {
+ var args = arguments,
+ argsIndex = 0,
+ argsLength = args.length,
+ length = array ? array.length : 0;
+
+ while (++argsIndex < argsLength) {
+ var index = -1,
+ value = args[argsIndex];
+ while (++index < length) {
+ if (array[index] === value) {
+ splice.call(array, index--, 1);
+ length--;
+ }
+ }
+ }
+ return array;
+ }
+
+ /**
+ * Creates an array of numbers (positive and/or negative) progressing from
+ * `start` up to but not including `end`. If `start` is less than `stop` a
+ * zero-length range is created unless a negative `step` is specified.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {number} [start=0] The start of the range.
+ * @param {number} end The end of the range.
+ * @param {number} [step=1] The value to increment or decrement by.
+ * @returns {Array} Returns a new range array.
+ * @example
+ *
+ * _.range(4);
+ * // => [0, 1, 2, 3]
+ *
+ * _.range(1, 5);
+ * // => [1, 2, 3, 4]
+ *
+ * _.range(0, 20, 5);
+ * // => [0, 5, 10, 15]
+ *
+ * _.range(0, -4, -1);
+ * // => [0, -1, -2, -3]
+ *
+ * _.range(1, 4, 0);
+ * // => [1, 1, 1]
+ *
+ * _.range(0);
+ * // => []
+ */
+ function range(start, end, step) {
+ start = +start || 0;
+ step = typeof step == 'number' ? step : (+step || 1);
+
+ if (end == null) {
+ end = start;
+ start = 0;
+ }
+ // use `Array(length)` so engines like Chakra and V8 avoid slower modes
+ // http://youtu.be/XAqIpGU8ZZk#t=17m25s
+ var index = -1,
+ length = nativeMax(0, ceil((end - start) / (step || 1))),
+ result = Array(length);
+
+ while (++index < length) {
+ result[index] = start;
+ start += step;
+ }
+ return result;
+ }
+
+ /**
+ * Removes all elements from an array that the callback returns truey for
+ * and returns an array of removed elements. The callback is bound to `thisArg`
+ * and invoked with three arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to modify.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a new array of removed elements.
+ * @example
+ *
+ * var array = [1, 2, 3, 4, 5, 6];
+ * var evens = _.remove(array, function(num) { return num % 2 == 0; });
+ *
+ * console.log(array);
+ * // => [1, 3, 5]
+ *
+ * console.log(evens);
+ * // => [2, 4, 6]
+ */
+ function remove(array, callback, thisArg) {
+ var index = -1,
+ length = array ? array.length : 0,
+ result = [];
+
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (++index < length) {
+ var value = array[index];
+ if (callback(value, index, array)) {
+ result.push(value);
+ splice.call(array, index--, 1);
+ length--;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The opposite of `_.initial` this method gets all but the first element or
+ * first `n` elements of an array. If a callback function is provided elements
+ * at the beginning of the array are excluded from the result as long as the
+ * callback returns truey. The callback is bound to `thisArg` and invoked
+ * with three arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias drop, tail
+ * @category Arrays
+ * @param {Array} array The array to query.
+ * @param {Function|Object|number|string} [callback=1] The function called
+ * per element or the number of elements to exclude. If a property name or
+ * object is provided it will be used to create a "_.pluck" or "_.where"
+ * style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a slice of `array`.
+ * @example
+ *
+ * _.rest([1, 2, 3]);
+ * // => [2, 3]
+ *
+ * _.rest([1, 2, 3], 2);
+ * // => [3]
+ *
+ * _.rest([1, 2, 3], function(num) {
+ * return num < 3;
+ * });
+ * // => [3]
+ *
+ * var characters = [
+ * { 'name': 'barney', 'blocked': true, 'employer': 'slate' },
+ * { 'name': 'fred', 'blocked': false, 'employer': 'slate' },
+ * { 'name': 'pebbles', 'blocked': true, 'employer': 'na' }
+ * ];
+ *
+ * // using "_.pluck" callback shorthand
+ * _.pluck(_.rest(characters, 'blocked'), 'name');
+ * // => ['fred', 'pebbles']
+ *
+ * // using "_.where" callback shorthand
+ * _.rest(characters, { 'employer': 'slate' });
+ * // => [{ 'name': 'pebbles', 'blocked': true, 'employer': 'na' }]
+ */
+ function rest(array, callback, thisArg) {
+ if (typeof callback != 'number' && callback != null) {
+ var n = 0,
+ index = -1,
+ length = array ? array.length : 0;
+
+ callback = lodash.createCallback(callback, thisArg, 3);
+ while (++index < length && callback(array[index], index, array)) {
+ n++;
+ }
+ } else {
+ n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
+ }
+ return slice(array, n);
+ }
+
+ /**
+ * Uses a binary search to determine the smallest index at which a value
+ * should be inserted into a given sorted array in order to maintain the sort
+ * order of the array. If a callback is provided it will be executed for
+ * `value` and each element of `array` to compute their sort ranking. The
+ * callback is bound to `thisArg` and invoked with one argument; (value).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to evaluate.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ * @example
+ *
+ * _.sortedIndex([20, 30, 50], 40);
+ * // => 2
+ *
+ * // using "_.pluck" callback shorthand
+ * _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
+ * // => 2
+ *
+ * var dict = {
+ * 'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
+ * };
+ *
+ * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+ * return dict.wordToNumber[word];
+ * });
+ * // => 2
+ *
+ * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
+ * return this.wordToNumber[word];
+ * }, dict);
+ * // => 2
+ */
+ function sortedIndex(array, value, callback, thisArg) {
+ var low = 0,
+ high = array ? array.length : low;
+
+ // explicitly reference `identity` for better inlining in Firefox
+ callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
+ value = callback(value);
+
+ while (low < high) {
+ var mid = (low + high) >>> 1;
+ (callback(array[mid]) < value)
+ ? low = mid + 1
+ : high = mid;
+ }
+ return low;
+ }
+
+ /**
+ * Creates an array of unique values, in order, of the provided arrays using
+ * strict equality for comparisons, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {...Array} [array] The arrays to inspect.
+ * @returns {Array} Returns an array of combined values.
+ * @example
+ *
+ * _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
+ * // => [1, 2, 3, 5, 4]
+ */
+ function union() {
+ return baseUniq(baseFlatten(arguments, true, true));
+ }
+
+ /**
+ * Creates a duplicate-value-free version of an array using strict equality
+ * for comparisons, i.e. `===`. If the array is sorted, providing
+ * `true` for `isSorted` will use a faster algorithm. If a callback is provided
+ * each element of `array` is passed through the callback before uniqueness
+ * is computed. The callback is bound to `thisArg` and invoked with three
+ * arguments; (value, index, array).
+ *
+ * If a property name is provided for `callback` the created "_.pluck" style
+ * callback will return the property value of the given element.
+ *
+ * If an object is provided for `callback` the created "_.where" style callback
+ * will return `true` for elements that have the properties of the given object,
+ * else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @alias unique
+ * @category Arrays
+ * @param {Array} array The array to process.
+ * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
+ * @param {Function|Object|string} [callback=identity] The function called
+ * per iteration. If a property name or object is provided it will be used
+ * to create a "_.pluck" or "_.where" style callback, respectively.
+ * @param {*} [thisArg] The `this` binding of `callback`.
+ * @returns {Array} Returns a duplicate-value-free array.
+ * @example
+ *
+ * _.uniq([1, 2, 1, 3, 1]);
+ * // => [1, 2, 3]
+ *
+ * _.uniq([1, 1, 2, 2, 3], true);
+ * // => [1, 2, 3]
+ *
+ * _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
+ * // => ['A', 'b', 'C']
+ *
+ * _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
+ * // => [1, 2.5, 3]
+ *
+ * // using "_.pluck" callback shorthand
+ * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+ * // => [{ 'x': 1 }, { 'x': 2 }]
+ */
+ function uniq(array, isSorted, callback, thisArg) {
+ // juggle arguments
+ if (typeof isSorted != 'boolean' && isSorted != null) {
+ thisArg = callback;
+ callback = (typeof isSorted != 'function' && thisArg && thisArg[isSorted] === array) ? null : isSorted;
+ isSorted = false;
+ }
+ if (callback != null) {
+ callback = lodash.createCallback(callback, thisArg, 3);
+ }
+ return baseUniq(array, isSorted, callback);
+ }
+
+ /**
+ * Creates an array excluding all provided values using strict equality for
+ * comparisons, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {Array} array The array to filter.
+ * @param {...*} [value] The values to exclude.
+ * @returns {Array} Returns a new array of filtered values.
+ * @example
+ *
+ * _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
+ * // => [2, 3, 4]
+ */
+ function without(array) {
+ return baseDifference(array, slice(arguments, 1));
+ }
+
+ /**
+ * Creates an array that is the symmetric difference of the provided arrays.
+ * See http://en.wikipedia.org/wiki/Symmetric_difference.
+ *
+ * @static
+ * @memberOf _
+ * @category Arrays
+ * @param {...Array} [array] The arrays to inspect.
+ * @returns {Array} Returns an array of values.
+ * @example
+ *
+ * _.xor([1, 2, 3], [5, 2, 1, 4]);
+ * // => [3, 5, 4]
+ *
+ * _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
+ * // => [1, 4, 5]
+ */
+ function xor() {
+ var index = -1,
+ length = arguments.length;
+
+ while (++index < length) {
+ var array = arguments[index];
+ if (isArray(array) || isArguments(array)) {
+ var result = result
+ ? baseUniq(baseDifference(result, array).concat(baseDifference(array, result)))
+ : array;
+ }
+ }
+ return result || [];
+ }
+
+ /**
+ * Creates an array of grouped elements, the first of which contains the first
+ * elements of the given arrays, the second of which contains the second
+ * elements of the given arrays, and so on.
+ *
+ * @static
+ * @memberOf _
+ * @alias unzip
+ * @category Arrays
+ * @param {...Array} [array] Arrays to process.
+ * @returns {Array} Returns a new array of grouped elements.
+ * @example
+ *
+ * _.zip(['fred', 'barney'], [30, 40], [true, false]);
+ * // => [['fred', 30, true], ['barney', 40, false]]
+ */
+ function zip() {
+ var array = arguments.length > 1 ? arguments : arguments[0],
+ index = -1,
+ length = array ? max(pluck(array, 'length')) : 0,
+ result = Array(length < 0 ? 0 : length);
+
+ while (++index < length) {
+ result[index] = pluck(array, index);
+ }
+ return result;
+ }
+
+ /**
+ * Creates an object composed from arrays of `keys` and `values`. Provide
+ * either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`
+ * or two arrays, one of `keys` and one of corresponding `values`.
+ *
+ * @static
+ * @memberOf _
+ * @alias object
+ * @category Arrays
+ * @param {Array} keys The array of keys.
+ * @param {Array} [values=[]] The array of values.
+ * @returns {Object} Returns an object composed of the given keys and
+ * corresponding values.
+ * @example
+ *
+ * _.zipObject(['fred', 'barney'], [30, 40]);
+ * // => { 'fred': 30, 'barney': 40 }
+ */
+ function zipObject(keys, values) {
+ var index = -1,
+ length = keys ? keys.length : 0,
+ result = {};
+
+ if (!values && length && !isArray(keys[0])) {
+ values = [];
+ }
+ while (++index < length) {
+ var key = keys[index];
+ if (values) {
+ result[key] = values[index];
+ } else if (key) {
+ result[key[0]] = key[1];
+ }
+ }
+ return result;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Creates a function that executes `func`, with the `this` binding and
+ * arguments of the created function, only after being called `n` times.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {number} n The number of times the function must be called before
+ * `func` is executed.
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * var saves = ['profile', 'settings'];
+ *
+ * var done = _.after(saves.length, function() {
+ * console.log('Done saving!');
+ * });
+ *
+ * _.forEach(saves, function(type) {
+ * asyncSave({ 'type': type, 'complete': done });
+ * });
+ * // => logs 'Done saving!', after all saves have completed
+ */
+ function after(n, func) {
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ return function() {
+ if (--n < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ }
+
+ /**
+ * Creates a function that, when called, invokes `func` with the `this`
+ * binding of `thisArg` and prepends any additional `bind` arguments to those
+ * provided to the bound function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to bind.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {...*} [arg] Arguments to be partially applied.
+ * @returns {Function} Returns the new bound function.
+ * @example
+ *
+ * var func = function(greeting) {
+ * return greeting + ' ' + this.name;
+ * };
+ *
+ * func = _.bind(func, { 'name': 'fred' }, 'hi');
+ * func();
+ * // => 'hi fred'
+ */
+ function bind(func, thisArg) {
+ return arguments.length > 2
+ ? createWrapper(func, 17, slice(arguments, 2), null, thisArg)
+ : createWrapper(func, 1, null, null, thisArg);
+ }
+
+ /**
+ * Binds methods of an object to the object itself, overwriting the existing
+ * method. Method names may be specified as individual arguments or as arrays
+ * of method names. If no method names are provided all the function properties
+ * of `object` will be bound.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Object} object The object to bind and assign the bound methods to.
+ * @param {...string} [methodName] The object method names to
+ * bind, specified as individual method names or arrays of method names.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var view = {
+ * 'label': 'docs',
+ * 'onClick': function() { console.log('clicked ' + this.label); }
+ * };
+ *
+ * _.bindAll(view);
+ * jQuery('#docs').on('click', view.onClick);
+ * // => logs 'clicked docs', when the button is clicked
+ */
+ function bindAll(object) {
+ var funcs = arguments.length > 1 ? baseFlatten(arguments, true, false, 1) : functions(object),
+ index = -1,
+ length = funcs.length;
+
+ while (++index < length) {
+ var key = funcs[index];
+ object[key] = createWrapper(object[key], 1, null, null, object);
+ }
+ return object;
+ }
+
+ /**
+ * Creates a function that, when called, invokes the method at `object[key]`
+ * and prepends any additional `bindKey` arguments to those provided to the bound
+ * function. This method differs from `_.bind` by allowing bound functions to
+ * reference methods that will be redefined or don't yet exist.
+ * See http://michaux.ca/articles/lazy-function-definition-pattern.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Object} object The object the method belongs to.
+ * @param {string} key The key of the method.
+ * @param {...*} [arg] Arguments to be partially applied.
+ * @returns {Function} Returns the new bound function.
+ * @example
+ *
+ * var object = {
+ * 'name': 'fred',
+ * 'greet': function(greeting) {
+ * return greeting + ' ' + this.name;
+ * }
+ * };
+ *
+ * var func = _.bindKey(object, 'greet', 'hi');
+ * func();
+ * // => 'hi fred'
+ *
+ * object.greet = function(greeting) {
+ * return greeting + 'ya ' + this.name + '!';
+ * };
+ *
+ * func();
+ * // => 'hiya fred!'
+ */
+ function bindKey(object, key) {
+ return arguments.length > 2
+ ? createWrapper(key, 19, slice(arguments, 2), null, object)
+ : createWrapper(key, 3, null, null, object);
+ }
+
+ /**
+ * Creates a function that is the composition of the provided functions,
+ * where each function consumes the return value of the function that follows.
+ * For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
+ * Each function is executed with the `this` binding of the composed function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {...Function} [func] Functions to compose.
+ * @returns {Function} Returns the new composed function.
+ * @example
+ *
+ * var realNameMap = {
+ * 'pebbles': 'penelope'
+ * };
+ *
+ * var format = function(name) {
+ * name = realNameMap[name.toLowerCase()] || name;
+ * return name.charAt(0).toUpperCase() + name.slice(1).toLowerCase();
+ * };
+ *
+ * var greet = function(formatted) {
+ * return 'Hiya ' + formatted + '!';
+ * };
+ *
+ * var welcome = _.compose(greet, format);
+ * welcome('pebbles');
+ * // => 'Hiya Penelope!'
+ */
+ function compose() {
+ var funcs = arguments,
+ length = funcs.length;
+
+ while (length--) {
+ if (!isFunction(funcs[length])) {
+ throw new TypeError;
+ }
+ }
+ return function() {
+ var args = arguments,
+ length = funcs.length;
+
+ while (length--) {
+ args = [funcs[length].apply(this, args)];
+ }
+ return args[0];
+ };
+ }
+
+ /**
+ * Creates a function which accepts one or more arguments of `func` that when
+ * invoked either executes `func` returning its result, if all `func` arguments
+ * have been provided, or returns a function that accepts one or more of the
+ * remaining `func` arguments, and so on. The arity of `func` can be specified
+ * if `func.length` is not sufficient.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to curry.
+ * @param {number} [arity=func.length] The arity of `func`.
+ * @returns {Function} Returns the new curried function.
+ * @example
+ *
+ * var curried = _.curry(function(a, b, c) {
+ * console.log(a + b + c);
+ * });
+ *
+ * curried(1)(2)(3);
+ * // => 6
+ *
+ * curried(1, 2)(3);
+ * // => 6
+ *
+ * curried(1, 2, 3);
+ * // => 6
+ */
+ function curry(func, arity) {
+ arity = typeof arity == 'number' ? arity : (+arity || func.length);
+ return createWrapper(func, 4, null, null, null, arity);
+ }
+
+ /**
+ * Creates a function that will delay the execution of `func` until after
+ * `wait` milliseconds have elapsed since the last time it was invoked.
+ * Provide an options object to indicate that `func` should be invoked on
+ * the leading and/or trailing edge of the `wait` timeout. Subsequent calls
+ * to the debounced function will return the result of the last `func` call.
+ *
+ * Note: If `leading` and `trailing` options are `true` `func` will be called
+ * on the trailing edge of the timeout only if the the debounced function is
+ * invoked more than once during the `wait` timeout.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to debounce.
+ * @param {number} wait The number of milliseconds to delay.
+ * @param {Object} [options] The options object.
+ * @param {boolean} [options.leading=false] Specify execution on the leading edge of the timeout.
+ * @param {number} [options.maxWait] The maximum time `func` is allowed to be delayed before it's called.
+ * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+ * @returns {Function} Returns the new debounced function.
+ * @example
+ *
+ * // avoid costly calculations while the window size is in flux
+ * var lazyLayout = _.debounce(calculateLayout, 150);
+ * jQuery(window).on('resize', lazyLayout);
+ *
+ * // execute `sendMail` when the click event is fired, debouncing subsequent calls
+ * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
+ * 'leading': true,
+ * 'trailing': false
+ * });
+ *
+ * // ensure `batchLog` is executed once after 1 second of debounced calls
+ * var source = new EventSource('/stream');
+ * source.addEventListener('message', _.debounce(batchLog, 250, {
+ * 'maxWait': 1000
+ * }, false);
+ */
+ function debounce(func, wait, options) {
+ var args,
+ maxTimeoutId,
+ result,
+ stamp,
+ thisArg,
+ timeoutId,
+ trailingCall,
+ lastCalled = 0,
+ maxWait = false,
+ trailing = true;
+
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ wait = nativeMax(0, wait) || 0;
+ if (options === true) {
+ var leading = true;
+ trailing = false;
+ } else if (isObject(options)) {
+ leading = options.leading;
+ maxWait = 'maxWait' in options && (nativeMax(wait, options.maxWait) || 0);
+ trailing = 'trailing' in options ? options.trailing : trailing;
+ }
+ var delayed = function() {
+ var remaining = wait - (now() - stamp);
+ if (remaining <= 0) {
+ if (maxTimeoutId) {
+ clearTimeout(maxTimeoutId);
+ }
+ var isCalled = trailingCall;
+ maxTimeoutId = timeoutId = trailingCall = undefined;
+ if (isCalled) {
+ lastCalled = now();
+ result = func.apply(thisArg, args);
+ if (!timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ }
+ } else {
+ timeoutId = setTimeout(delayed, remaining);
+ }
+ };
+
+ var maxDelayed = function() {
+ if (timeoutId) {
+ clearTimeout(timeoutId);
+ }
+ maxTimeoutId = timeoutId = trailingCall = undefined;
+ if (trailing || (maxWait !== wait)) {
+ lastCalled = now();
+ result = func.apply(thisArg, args);
+ if (!timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ }
+ };
+
+ return function() {
+ args = arguments;
+ stamp = now();
+ thisArg = this;
+ trailingCall = trailing && (timeoutId || !leading);
+
+ if (maxWait === false) {
+ var leadingCall = leading && !timeoutId;
+ } else {
+ if (!maxTimeoutId && !leading) {
+ lastCalled = stamp;
+ }
+ var remaining = maxWait - (stamp - lastCalled),
+ isCalled = remaining <= 0;
+
+ if (isCalled) {
+ if (maxTimeoutId) {
+ maxTimeoutId = clearTimeout(maxTimeoutId);
+ }
+ lastCalled = stamp;
+ result = func.apply(thisArg, args);
+ }
+ else if (!maxTimeoutId) {
+ maxTimeoutId = setTimeout(maxDelayed, remaining);
+ }
+ }
+ if (isCalled && timeoutId) {
+ timeoutId = clearTimeout(timeoutId);
+ }
+ else if (!timeoutId && wait !== maxWait) {
+ timeoutId = setTimeout(delayed, wait);
+ }
+ if (leadingCall) {
+ isCalled = true;
+ result = func.apply(thisArg, args);
+ }
+ if (isCalled && !timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Defers executing the `func` function until the current call stack has cleared.
+ * Additional arguments will be provided to `func` when it is invoked.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to defer.
+ * @param {...*} [arg] Arguments to invoke the function with.
+ * @returns {number} Returns the timer id.
+ * @example
+ *
+ * _.defer(function(text) { console.log(text); }, 'deferred');
+ * // logs 'deferred' after one or more milliseconds
+ */
+ function defer(func) {
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ var args = slice(arguments, 1);
+ return setTimeout(function() { func.apply(undefined, args); }, 1);
+ }
+
+ /**
+ * Executes the `func` function after `wait` milliseconds. Additional arguments
+ * will be provided to `func` when it is invoked.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to delay.
+ * @param {number} wait The number of milliseconds to delay execution.
+ * @param {...*} [arg] Arguments to invoke the function with.
+ * @returns {number} Returns the timer id.
+ * @example
+ *
+ * _.delay(function(text) { console.log(text); }, 1000, 'later');
+ * // => logs 'later' after one second
+ */
+ function delay(func, wait) {
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ var args = slice(arguments, 2);
+ return setTimeout(function() { func.apply(undefined, args); }, wait);
+ }
+
+ /**
+ * Creates a function that memoizes the result of `func`. If `resolver` is
+ * provided it will be used to determine the cache key for storing the result
+ * based on the arguments provided to the memoized function. By default, the
+ * first argument provided to the memoized function is used as the cache key.
+ * The `func` is executed with the `this` binding of the memoized function.
+ * The result cache is exposed as the `cache` property on the memoized function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to have its output memoized.
+ * @param {Function} [resolver] A function used to resolve the cache key.
+ * @returns {Function} Returns the new memoizing function.
+ * @example
+ *
+ * var fibonacci = _.memoize(function(n) {
+ * return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
+ * });
+ *
+ * fibonacci(9)
+ * // => 34
+ *
+ * var data = {
+ * 'fred': { 'name': 'fred', 'age': 40 },
+ * 'pebbles': { 'name': 'pebbles', 'age': 1 }
+ * };
+ *
+ * // modifying the result cache
+ * var get = _.memoize(function(name) { return data[name]; }, _.identity);
+ * get('pebbles');
+ * // => { 'name': 'pebbles', 'age': 1 }
+ *
+ * get.cache.pebbles.name = 'penelope';
+ * get('pebbles');
+ * // => { 'name': 'penelope', 'age': 1 }
+ */
+ function memoize(func, resolver) {
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ var memoized = function() {
+ var cache = memoized.cache,
+ key = resolver ? resolver.apply(this, arguments) : keyPrefix + arguments[0];
+
+ return hasOwnProperty.call(cache, key)
+ ? cache[key]
+ : (cache[key] = func.apply(this, arguments));
+ }
+ memoized.cache = {};
+ return memoized;
+ }
+
+ /**
+ * Creates a function that is restricted to execute `func` once. Repeat calls to
+ * the function will return the value of the first call. The `func` is executed
+ * with the `this` binding of the created function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * var initialize = _.once(createApplication);
+ * initialize();
+ * initialize();
+ * // `initialize` executes `createApplication` once
+ */
+ function once(func) {
+ var ran,
+ result;
+
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ return function() {
+ if (ran) {
+ return result;
+ }
+ ran = true;
+ result = func.apply(this, arguments);
+
+ // clear the `func` variable so the function may be garbage collected
+ func = null;
+ return result;
+ };
+ }
+
+ /**
+ * Creates a function that, when called, invokes `func` with any additional
+ * `partial` arguments prepended to those provided to the new function. This
+ * method is similar to `_.bind` except it does **not** alter the `this` binding.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to partially apply arguments to.
+ * @param {...*} [arg] Arguments to be partially applied.
+ * @returns {Function} Returns the new partially applied function.
+ * @example
+ *
+ * var greet = function(greeting, name) { return greeting + ' ' + name; };
+ * var hi = _.partial(greet, 'hi');
+ * hi('fred');
+ * // => 'hi fred'
+ */
+ function partial(func) {
+ return createWrapper(func, 16, slice(arguments, 1));
+ }
+
+ /**
+ * This method is like `_.partial` except that `partial` arguments are
+ * appended to those provided to the new function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to partially apply arguments to.
+ * @param {...*} [arg] Arguments to be partially applied.
+ * @returns {Function} Returns the new partially applied function.
+ * @example
+ *
+ * var defaultsDeep = _.partialRight(_.merge, _.defaults);
+ *
+ * var options = {
+ * 'variable': 'data',
+ * 'imports': { 'jq': $ }
+ * };
+ *
+ * defaultsDeep(options, _.templateSettings);
+ *
+ * options.variable
+ * // => 'data'
+ *
+ * options.imports
+ * // => { '_': _, 'jq': $ }
+ */
+ function partialRight(func) {
+ return createWrapper(func, 32, null, slice(arguments, 1));
+ }
+
+ /**
+ * Creates a function that, when executed, will only call the `func` function
+ * at most once per every `wait` milliseconds. Provide an options object to
+ * indicate that `func` should be invoked on the leading and/or trailing edge
+ * of the `wait` timeout. Subsequent calls to the throttled function will
+ * return the result of the last `func` call.
+ *
+ * Note: If `leading` and `trailing` options are `true` `func` will be called
+ * on the trailing edge of the timeout only if the the throttled function is
+ * invoked more than once during the `wait` timeout.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {Function} func The function to throttle.
+ * @param {number} wait The number of milliseconds to throttle executions to.
+ * @param {Object} [options] The options object.
+ * @param {boolean} [options.leading=true] Specify execution on the leading edge of the timeout.
+ * @param {boolean} [options.trailing=true] Specify execution on the trailing edge of the timeout.
+ * @returns {Function} Returns the new throttled function.
+ * @example
+ *
+ * // avoid excessively updating the position while scrolling
+ * var throttled = _.throttle(updatePosition, 100);
+ * jQuery(window).on('scroll', throttled);
+ *
+ * // execute `renewToken` when the click event is fired, but not more than once every 5 minutes
+ * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
+ * 'trailing': false
+ * }));
+ */
+ function throttle(func, wait, options) {
+ var leading = true,
+ trailing = true;
+
+ if (!isFunction(func)) {
+ throw new TypeError;
+ }
+ if (options === false) {
+ leading = false;
+ } else if (isObject(options)) {
+ leading = 'leading' in options ? options.leading : leading;
+ trailing = 'trailing' in options ? options.trailing : trailing;
+ }
+ debounceOptions.leading = leading;
+ debounceOptions.maxWait = wait;
+ debounceOptions.trailing = trailing;
+
+ return debounce(func, wait, debounceOptions);
+ }
+
+ /**
+ * Creates a function that provides `value` to the wrapper function as its
+ * first argument. Additional arguments provided to the function are appended
+ * to those provided to the wrapper function. The wrapper is executed with
+ * the `this` binding of the created function.
+ *
+ * @static
+ * @memberOf _
+ * @category Functions
+ * @param {*} value The value to wrap.
+ * @param {Function} wrapper The wrapper function.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var p = _.wrap(_.escape, function(func, text) {
+ * return '' + func(text) + '
';
+ * });
+ *
+ * p('Fred, Wilma, & Pebbles');
+ * // => 'Fred, Wilma, & Pebbles
'
+ */
+ function wrap(value, wrapper) {
+ return createWrapper(wrapper, 16, [value]);
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Creates a function that returns `value`.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {*} value The value to return from the new function.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var object = { 'name': 'fred' };
+ * var getter = _.constant(object);
+ * getter() === object;
+ * // => true
+ */
+ function constant(value) {
+ return function() {
+ return value;
+ };
+ }
+
+ /**
+ * Produces a callback bound to an optional `thisArg`. If `func` is a property
+ * name the created callback will return the property value for a given element.
+ * If `func` is an object the created callback will return `true` for elements
+ * that contain the equivalent object properties, otherwise it will return `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {*} [func=identity] The value to convert to a callback.
+ * @param {*} [thisArg] The `this` binding of the created callback.
+ * @param {number} [argCount] The number of arguments the callback accepts.
+ * @returns {Function} Returns a callback function.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'barney', 'age': 36 },
+ * { 'name': 'fred', 'age': 40 }
+ * ];
+ *
+ * // wrap to create custom callback shorthands
+ * _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
+ * var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
+ * return !match ? func(callback, thisArg) : function(object) {
+ * return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
+ * };
+ * });
+ *
+ * _.filter(characters, 'age__gt38');
+ * // => [{ 'name': 'fred', 'age': 40 }]
+ */
+ function createCallback(func, thisArg, argCount) {
+ var type = typeof func;
+ if (func == null || type == 'function') {
+ return baseCreateCallback(func, thisArg, argCount);
+ }
+ // handle "_.pluck" style callback shorthands
+ if (type != 'object') {
+ return property(func);
+ }
+ var props = keys(func),
+ key = props[0],
+ a = func[key];
+
+ // handle "_.where" style callback shorthands
+ if (props.length == 1 && a === a && !isObject(a)) {
+ // fast path the common case of providing an object with a single
+ // property containing a primitive value
+ return function(object) {
+ var b = object[key];
+ return a === b && (a !== 0 || (1 / a == 1 / b));
+ };
+ }
+ return function(object) {
+ var length = props.length,
+ result = false;
+
+ while (length--) {
+ if (!(result = baseIsEqual(object[props[length]], func[props[length]], null, true))) {
+ break;
+ }
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
+ * corresponding HTML entities.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {string} string The string to escape.
+ * @returns {string} Returns the escaped string.
+ * @example
+ *
+ * _.escape('Fred, Wilma, & Pebbles');
+ * // => 'Fred, Wilma, & Pebbles'
+ */
+ function escape(string) {
+ return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
+ }
+
+ /**
+ * This method returns the first argument provided to it.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {*} value Any value.
+ * @returns {*} Returns `value`.
+ * @example
+ *
+ * var object = { 'name': 'fred' };
+ * _.identity(object) === object;
+ * // => true
+ */
+ function identity(value) {
+ return value;
+ }
+
+ /**
+ * Adds function properties of a source object to the destination object.
+ * If `object` is a function methods will be added to its prototype as well.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {Function|Object} [object=lodash] object The destination object.
+ * @param {Object} source The object of functions to add.
+ * @param {Object} [options] The options object.
+ * @param {boolean} [options.chain=true] Specify whether the functions added are chainable.
+ * @example
+ *
+ * function capitalize(string) {
+ * return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
+ * }
+ *
+ * _.mixin({ 'capitalize': capitalize });
+ * _.capitalize('fred');
+ * // => 'Fred'
+ *
+ * _('fred').capitalize().value();
+ * // => 'Fred'
+ *
+ * _.mixin({ 'capitalize': capitalize }, { 'chain': false });
+ * _('fred').capitalize();
+ * // => 'Fred'
+ */
+ function mixin(object, source, options) {
+ var chain = true,
+ methodNames = source && functions(source);
+
+ if (!source || (!options && !methodNames.length)) {
+ if (options == null) {
+ options = source;
+ }
+ ctor = lodashWrapper;
+ source = object;
+ object = lodash;
+ methodNames = functions(source);
+ }
+ if (options === false) {
+ chain = false;
+ } else if (isObject(options) && 'chain' in options) {
+ chain = options.chain;
+ }
+ var ctor = object,
+ isFunc = isFunction(ctor);
+
+ forEach(methodNames, function(methodName) {
+ var func = object[methodName] = source[methodName];
+ if (isFunc) {
+ ctor.prototype[methodName] = function() {
+ var chainAll = this.__chain__,
+ value = this.__wrapped__,
+ args = [value];
+
+ push.apply(args, arguments);
+ var result = func.apply(object, args);
+ if (chain || chainAll) {
+ if (value === result && isObject(result)) {
+ return this;
+ }
+ result = new ctor(result);
+ result.__chain__ = chainAll;
+ }
+ return result;
+ };
+ }
+ });
+ }
+
+ /**
+ * Reverts the '_' variable to its previous value and returns a reference to
+ * the `lodash` function.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @returns {Function} Returns the `lodash` function.
+ * @example
+ *
+ * var lodash = _.noConflict();
+ */
+ function noConflict() {
+ context._ = oldDash;
+ return this;
+ }
+
+ /**
+ * A no-operation function.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @example
+ *
+ * var object = { 'name': 'fred' };
+ * _.noop(object) === undefined;
+ * // => true
+ */
+ function noop() {
+ // no operation performed
+ }
+
+ /**
+ * Gets the number of milliseconds that have elapsed since the Unix epoch
+ * (1 January 1970 00:00:00 UTC).
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @example
+ *
+ * var stamp = _.now();
+ * _.defer(function() { console.log(_.now() - stamp); });
+ * // => logs the number of milliseconds it took for the deferred function to be called
+ */
+ var now = isNative(now = Date.now) && now || function() {
+ return new Date().getTime();
+ };
+
+ /**
+ * Converts the given value into an integer of the specified radix.
+ * If `radix` is `undefined` or `0` a `radix` of `10` is used unless the
+ * `value` is a hexadecimal, in which case a `radix` of `16` is used.
+ *
+ * Note: This method avoids differences in native ES3 and ES5 `parseInt`
+ * implementations. See http://es5.github.io/#E.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {string} value The value to parse.
+ * @param {number} [radix] The radix used to interpret the value to parse.
+ * @returns {number} Returns the new integer value.
+ * @example
+ *
+ * _.parseInt('08');
+ * // => 8
+ */
+ var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
+ // Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
+ return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
+ };
+
+ /**
+ * Creates a "_.pluck" style function, which returns the `key` value of a
+ * given object.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {string} key The name of the property to retrieve.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var characters = [
+ * { 'name': 'fred', 'age': 40 },
+ * { 'name': 'barney', 'age': 36 }
+ * ];
+ *
+ * var getName = _.property('name');
+ *
+ * _.map(characters, getName);
+ * // => ['barney', 'fred']
+ *
+ * _.sortBy(characters, getName);
+ * // => [{ 'name': 'barney', 'age': 36 }, { 'name': 'fred', 'age': 40 }]
+ */
+ function property(key) {
+ return function(object) {
+ return object[key];
+ };
+ }
+
+ /**
+ * Produces a random number between `min` and `max` (inclusive). If only one
+ * argument is provided a number between `0` and the given number will be
+ * returned. If `floating` is truey or either `min` or `max` are floats a
+ * floating-point number will be returned instead of an integer.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {number} [min=0] The minimum possible value.
+ * @param {number} [max=1] The maximum possible value.
+ * @param {boolean} [floating=false] Specify returning a floating-point number.
+ * @returns {number} Returns a random number.
+ * @example
+ *
+ * _.random(0, 5);
+ * // => an integer between 0 and 5
+ *
+ * _.random(5);
+ * // => also an integer between 0 and 5
+ *
+ * _.random(5, true);
+ * // => a floating-point number between 0 and 5
+ *
+ * _.random(1.2, 5.2);
+ * // => a floating-point number between 1.2 and 5.2
+ */
+ function random(min, max, floating) {
+ var noMin = min == null,
+ noMax = max == null;
+
+ if (floating == null) {
+ if (typeof min == 'boolean' && noMax) {
+ floating = min;
+ min = 1;
+ }
+ else if (!noMax && typeof max == 'boolean') {
+ floating = max;
+ noMax = true;
+ }
+ }
+ if (noMin && noMax) {
+ max = 1;
+ }
+ min = +min || 0;
+ if (noMax) {
+ max = min;
+ min = 0;
+ } else {
+ max = +max || 0;
+ }
+ if (floating || min % 1 || max % 1) {
+ var rand = nativeRandom();
+ return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1)))), max);
+ }
+ return baseRandom(min, max);
+ }
+
+ /**
+ * Resolves the value of property `key` on `object`. If `key` is a function
+ * it will be invoked with the `this` binding of `object` and its result returned,
+ * else the property value is returned. If `object` is falsey then `undefined`
+ * is returned.
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {Object} object The object to inspect.
+ * @param {string} key The name of the property to resolve.
+ * @returns {*} Returns the resolved value.
+ * @example
+ *
+ * var object = {
+ * 'cheese': 'crumpets',
+ * 'stuff': function() {
+ * return 'nonsense';
+ * }
+ * };
+ *
+ * _.result(object, 'cheese');
+ * // => 'crumpets'
+ *
+ * _.result(object, 'stuff');
+ * // => 'nonsense'
+ */
+ function result(object, key) {
+ if (object) {
+ var value = object[key];
+ return isFunction(value) ? object[key]() : value;
+ }
+ }
+
+ /**
+ * A micro-templating method that handles arbitrary delimiters, preserves
+ * whitespace, and correctly escapes quotes within interpolated code.
+ *
+ * Note: In the development build, `_.template` utilizes sourceURLs for easier
+ * debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
+ *
+ * For more information on precompiling templates see:
+ * http://lodash.com/custom-builds
+ *
+ * For more information on Chrome extension sandboxes see:
+ * http://developer.chrome.com/stable/extensions/sandboxingEval.html
+ *
+ * @static
+ * @memberOf _
+ * @category Utilities
+ * @param {string} text The template text.
+ * @param {Object} data The data object used to populate the text.
+ * @param {Object} [options] The options object.
+ * @param {RegExp} [options.escape] The "escape" delimiter.
+ * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
+ * @param {Object} [options.imports] An object to import into the template as local variables.
+ * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
+ * @param {string} [sourceURL] The sourceURL of the template's compiled source.
+ * @param {string} [variable] The data object variable name.
+ * @returns {Function|string} Returns a compiled function when no `data` object
+ * is given, else it returns the interpolated text.
+ * @example
+ *
+ * // using the "interpolate" delimiter to create a compiled template
+ * var compiled = _.template('hello <%= name %>');
+ * compiled({ 'name': 'fred' });
+ * // => 'hello fred'
+ *
+ * // using the "escape" delimiter to escape HTML in data property values
+ * _.template('<%- value %> ', { 'value': '