upgrade to angular6

webpack/webpack.common.js

@@ -6,6 +6,7 @@ const {
 } = require('./helpers');
 
 module.exports = {
+  mode: 'development',
   devtool: 'source-map',
   resolve: {
     extensions: ['.ts', '.js', '.json']

webpack/webpack.prod.js

@@ -1,60 +1,68 @@
 const webpack = require('webpack');
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 const CompressionPlugin = require("compression-webpack-plugin");
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 
 const {
-  root
+    root
 } = require('./helpers');
 
 module.exports = {
-  recordsOutputPath: root('webpack.records.json'),
-  plugins: [
-    new webpack.DefinePlugin({
-      'process.env.NODE_ENV': JSON.stringify('production'),
-      'process.env.AOT': true
-    }),
+    mode: 'production',
+    recordsOutputPath: root('webpack.records.json'),
+    plugins: [
+        new webpack.DefinePlugin({
+            'process.env.NODE_ENV': JSON.stringify('production'),
+            'process.env.AOT': true
+        }),
 
-    // Loader options
-    new webpack.LoaderOptionsPlugin({
-      minimize: true,
-      debug: false
-    }),
+        // Loader options
+        new webpack.LoaderOptionsPlugin({
+            minimize: true,
+            debug: false
+        }),
 
-    new BundleAnalyzerPlugin({
-      analyzerMode: 'disabled', // change it to `server` to view bundle stats
-      reportFilename: 'report.html',
-      generateStatsFile: true,
-      statsFilename: 'stats.json',
-    }),
+        new BundleAnalyzerPlugin({
+            analyzerMode: 'disabled', // change it to `server` to view bundle stats
+            reportFilename: 'report.html',
+            generateStatsFile: true,
+            statsFilename: 'stats.json',
+        }),
 
-    new webpack.optimize.UglifyJsPlugin({
-      beautify: false,
-      mangle: false,
-      output: {
-        comments: false
-      },
-      compress: {
-        warnings: false,
-        conditionals: false,
-        unused: true,
-        comparisons: true,
-        sequences: true,
-        dead_code: true,
-        evaluate: true,
-        if_return: true,
-        join_vars: true,
-        negate_iife: true
-      },
-      sourceMap: true
-    }),
 
-    new CompressionPlugin({
-      asset: "[path].gz[query]",
-      algorithm: "gzip",
-      test: /\.js$|\.css$|\.html$/,
-      threshold: 10240,
-      minRatio: 0.8
-    })
+        new CompressionPlugin({
+            asset: "[path].gz[query]",
+            algorithm: "gzip",
+            test: /\.js$|\.css$|\.html$/,
+            threshold: 10240,
+            minRatio: 0.8
+        })
 
-  ]
+    ],
+    optimization: {
+        minimize: [
+            new UglifyJsPlugin({
+                uglifyOptions: {
+                    beautify: false,
+                    mangle: false,
+                    output: {
+                        comments: false
+                    },
+                    compress: {
+                        warnings: false,
+                        conditionals: false,
+                        unused: true,
+                        comparisons: true,
+                        sequences: true,
+                        dead_code: true,
+                        evaluate: true,
+                        if_return: true,
+                        join_vars: true,
+                        negate_iife: true
+                    },
+                    sourceMap: true
+                }
+            })
+        ]
+    },
 };