Webpack how to build production code and how to use it

Question

I am very new to webpack, I found that in production build we can able to reduce the size of overall code. Currently webpack builds around 8MB files and main.js around 5MB.

Answer 1

If you have a lot of duplicate code in your webpack.dev.config and your webpack.prod.config, you could use a boolean isProd to activate certain features only in certain situations and only have a single webpack.config.js file.

const isProd = (process.env.NODE_ENV === 'production');

 if (isProd) {
     plugins.push(new AotPlugin({
      "mainPath": "main.ts",
      "hostReplacementPaths": {
        "environments/index.ts": "environments/index.prod.ts"
      },
      "exclude": [],
      "tsConfigPath": "src/tsconfig.app.json"
    }));
    plugins.push(new UglifyJsPlugin({
      "mangle": {
        "screw_ie8": true
      },
      "compress": {
        "screw_ie8": true,
        "warnings": false
      },
      "sourceMap": false
    }));
  }

By the way: The DedupePlugin plugin was removed from Webpack. You should remove it from your configuration.

UPDATE:

In addition to my previous answer:

If you want to hide your code for release, try enclosejs.com. It allows you to:

• make a release version of your application without sources
• create a self-extracting archive or installer
• Make a closed source GUI application
• Put your assets inside the executable

You can install it with npm install -g enclose