enable typescript for webpack

.babelrc

@@ -1,7 +1,10 @@
 {
-  "presets": ["@babel/env", "@babel/react", "@babel/flow"],
+  "presets": ["@babel/typescript", "@babel/env", "@babel/react", "@babel/flow"],
   "plugins": [
     ["@babel/plugin-proposal-decorators", { "legacy": true }],
-    "@babel/proposal-class-properties"
+    "@babel/proposal-class-properties",
+    "@babel/plugin-proposal-nullish-coalescing-operator",
+    "@babel/plugin-proposal-optional-chaining"
+
   ]
 }

package-lock.json

@@ -4082,11 +4082,6 @@
       "integrity": "sha512-ZIzRpLJrOj7jjP2miAtgqIfmzbxa4ZOr5jJc601zklsfEx9oTzmmj2nVpIPRpNlRTIh8lc1kyViIY7BWSGNmKw==",
       "dev": true
     },
-    "diff-match-patch": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/diff-match-patch/-/diff-match-patch-1.0.0.tgz",
-      "integrity": "sha1-HMPIOkkNZ/ldkeOfatHy4Ia2MEg="
-    },
     "diffie-hellman": {
       "version": "5.0.3",
       "resolved": "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",

package.json

@@ -67,6 +67,7 @@
     "less": "^3.11.1",
     "libtess": "1.2.2",
     "lodash": "^4.17.15",
+    "marked": "^1.0.0",
     "mousetrap": "1.6.1",
     "numeric": "1.2.6",
     "prop-types": "15.6.0",

tsconfig.json

@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "lib": ["es2018", "dom"],
+    "sourceMap": true,
+    "jsx": "react",
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "target": "ES5",
+    "baseUrl": ".",
+    "paths": {
+      "*": [
+        "modules/*",
+        "node_modules/*"
+      ]
+    }
+  }
+}

webpack.config.js

@@ -29,7 +29,7 @@ module.exports = {
     new webpack.HotModuleReplacementPlugin(),
   ],
   resolve: {
-    extensions: ['.js', '.jsx'],
+    extensions: ['.js', '.jsx', ".ts", ".tsx"],
     modules: [MODULES, "node_modules"]
   },
   devServer: {
@@ -48,7 +48,7 @@ module.exports = {
   },
   module: {
     rules: [{
-      test: /\.(js|jsx)$/,
+      test: /\.(js|jsx|ts|tsx)$/,
       loader: 'babel-loader',
       include: [MODULES, WEB_APP, INTEGRATION_TESTS]
     }, {