Convert demo from using ts-loader to babel-loader for transpiling JavaScript for web browsers (adds support for .cjs, see https://github.com/TypeStrong/ts-loader/pull/1503).

demo/tsconfig.json

@@ -1,10 +0,0 @@
-{
-  "compilerOptions": {
-    "allowJs": true,
-    "outDir": "unused",
-    "target": "es2015"
-  },
-  "include": [
-    "../lib/*.js"
-  ]
-}

demo/webpack.config.js

@@ -19,16 +19,14 @@ function config(options) {
     "module": {
       "rules": [
         {
-          "test": /.js$/,
-          "use": [
-            {
-              "loader": "ts-loader",
-              "options": {
-                "configFile": "../demo/tsconfig.json",
-                "transpileOnly": true
-              }
+          "test": /\.[cm]?js$/,
+          "exclude": /node_modules/,
+          "use": {
+            "loader": "babel-loader",
+            "options": {
+              "presets": [ "@babel/preset-env" ]
             }
-          ]
+          }
         }
       ]
     },

package.json

@@ -67,6 +67,9 @@
   },
   "devDependencies": {
     "ava": "5.2.0",
+    "babel-loader": "9.1.2",
+    "@babel/core": "7.20.12",
+    "@babel/preset-env": "7.20.2",
     "c8": "7.13.0",
     "eslint": "8.34.0",
     "eslint-plugin-es": "4.1.0",
@@ -87,7 +90,6 @@
     "strip-json-comments": "5.0.0",
     "terser-webpack-plugin": "5.3.6",
     "toml": "3.0.0",
-    "ts-loader": "9.4.2",
     "tv4": "1.3.0",
     "typescript": "4.9.5",
     "webpack": "5.75.0",