插件(Plugins)

The plugins option is used to customize the webpack build process in a variety of ways. webpack comes with a variety built-in plugins available under webpack.[plugin-name]. See this page for a list of plugins and documentation but note that there are a lot more out in the community.

Note: This page only discusses using plugins, however if you are interested in writing your own please visit Writing a Plugin.

plugins

array

webpack 插件列表。例如，当多个 bundle 共享一些相同的依赖，CommonsChunkPlugin 有助于提取这些依赖到共享的 bundle 中，来避免重复打包。可以像这样添加：

plugins: [
  new webpack.optimize.CommonsChunkPlugin({
    ...
  })
]

一个复杂示例，使用多个插件，可能看起来就像这样：

var webpack = require('webpack')
// 导入非 webpack 默认自带插件
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var DashboardPlugin = require('webpack-dashboard/plugin');

// 在配置中添加插件
plugins: [
  // 构建优化插件
  new webpack.optimize.CommonsChunkPlugin({
    name: 'vendor',
    filename: 'vendor-[hash].min.js',
  }),
  new webpack.optimize.UglifyJsPlugin({
    compress: {
      warnings: false,
      drop_console: false,
    }
  }),
  new ExtractTextPlugin({
    filename: 'build.min.css',
    allChunks: true,
  }),
  new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
  // 编译时(compile time)插件
  new webpack.DefinePlugin({
    'process.env.NODE_ENV': '"production"',
  }),
  // webpack-dev-server 强化插件
  new DashboardPlugin(),
  new webpack.HotModuleReplacementPlugin(),
]

原文：https://webpack.js.org/configuration/plugins/