refactor build webpack config file

webpack.config.js

@@ -1,24 +1,30 @@
+// This config is for building dist files
 const webpack = require('webpack');
 const getWebpackConfig = require('antd-tools/lib/getWebpackConfig');
 
+// noParse still leave `require('./locale' + name)` in dist files
+// ignore is better
+// http://stackoverflow.com/q/25384360
 function ignoreMomentLocale(webpackConfig) {
   delete webpackConfig.module.noParse;
   webpackConfig.plugins.push(new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/));
 }
 
+// Fix ie8 compatibility
+function es3ify(webpackConfig) {
+  webpackConfig.module.loaders.unshift({
+    test: /\.(tsx|jsx?)$/,
+    loader: 'es3ify-loader',
+  });
+}
+
 module.exports = function (webpackConfig) {
   webpackConfig = getWebpackConfig(webpackConfig);
   if (process.env.RUN_ENV === 'PRODUCTION') {
-    // Fix ie8 compatibility
-    webpackConfig[0].module.loaders.unshift({
-      test: /\.(tsx|jsx?)$/,
-      loader: 'es3ify-loader',
+    webpackConfig.forEach((config) => {
+      es3ify(config);
+      ignoreMomentLocale(config);
     });
-    // noParse still leave `require('./locale' + name)` in dist files
-    // ignore is better
-    // http://stackoverflow.com/q/25384360
-    ignoreMomentLocale(webpackConfig[0]);
-    ignoreMomentLocale(webpackConfig[1]);
   }
   return webpackConfig;
 };