Changing the build mode in the configuration file in Webpack

The build mode is controlled in the configuration file using the mode setting. Let's specify the development mode:

webpack.config.jsexport default {
  mode: 'development',
  entry: './src/index.js',
};

Now let's specify the production mode:

webpack.config.jsexport default {
  mode: 'production',
  entry: './src/index.js',
};