webpack 打包压缩js和css的方法示例

//使用插件html-webpack-plugin打包合并html
//使用插件extract-text-webpack-plugin打包独立的css
//使用UglifyJsPlugin压缩代码
var HtmlWebpackPlugin = require('html-webpack-plugin');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var webpack = require("webpack");
module.exports = {
  entry: {
    bundle : './src/js/main.js'
  },
  output: {
    filename: "[name]-[hash].js",
    path: __dirname + '/dist'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ExtractTextPlugin.extract({
          fallback: "style-loader",
          use: "css-loader"
        })

      },
      {
        test: /\.(png|jpg|jpeg|gif)$/,
        use: 'url-loader"[name].[hash].css"),
    new webpack.optimize.UglifyJsPlugin({
      compress: {   //压缩代码
        dead_code: true,  //移除没被引用的代码
        warnings: false,   //当删除没有用处的代码时，显示警告
        loops: true //当do、while 、 for循环的判断条件可以确定是，对其进行优化
      },
      except: ['$super', '$', 'exports', 'require']  //混淆,并排除关键字
    })
  ]
};