webpack中的模式(mode)使用详解

module.exports = {
 mode: 'production'
};
 

webpack --mode=production

// webpack.development.config.js
module.exports = {
+ mode: 'development'
- plugins: [
-  new webpack.NamedModulesPlugin(),
-  new webpack.DefinePlugin({ "process.env.NODE_ENV": JSON.stringify("development") }),
- ]
}
 

// webpack.production.config.js
module.exports = {
+ mode: 'production',
- plugins: [
-  new UglifyJsPlugin(/* ... */),
-  new webpack.DefinePlugin({ "process.env.NODE_ENV": JSON.stringify("production") }),
-  new webpack.optimize.ModuleConcatenationPlugin(),
-  new webpack.NoEmitOnErrorsPlugin()
- ]
}