Fix support for IE9 with webpack 5 and remove support for IE6-8

Author: javve

.browserslistrc

@@ -0,0 +1 @@
+ie 9

.prettierignore

@@ -0,0 +1 @@
+*.min.js

docs/overview/index.html

@@ -25,7 +25,7 @@ <h3>Features</h3>
   <li>Filter <small><a href="{{ "/docs/list-api#filter" | relative_url }}">Read more ›</a></small></li>
   <li>Simple templating system that adds possibility to add, edit, remove items <small><a href="{{ "/docs/list-api#add" | relative_url }}">Read more ›</a></small></li>
   <li>Plugins <small><a href="{{ "/docs/plugins" | relative_url }}>"Read more ›</a></small></li>
-  <li>Support for Chrome, Safari, Firefox, IE6+</li>
+  <li>Support for Chrome, Safari, Firefox, IE9+</li>
 </ul>
 
 <h3>Used by</h3>

package-lock.json

@@ -26,6 +26,9 @@
     "string-natural-compare": "^2.0.2"
   },
   "devDependencies": {
+    "@babel/core": "^7.12.7",
+    "@babel/preset-env": "^7.12.7",
+    "babel-loader": "^8.2.1",
     "jest": "^26.6.3",
     "jquery": "^3.5.1",
     "prettier": "^2.2.0",

package.json

@@ -12,8 +12,21 @@ module.exports = {
     filename: '[name].js',
     library: 'List',
   },
-  devtool: false,
-  module: {},
+  devtool: 'cheap-module-source-map',
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        exclude: /(node_modules)/,
+        use: {
+          loader: 'babel-loader',
+          options: {
+            presets: ['@babel/preset-env'],
+          },
+        },
+      },
+    ],
+  },
   devServer: {
     inline: true,
   },