webpack回顾篇

module.exports = {
  entry: 'index.js'
}

module.exports = {
  entry: '[index.js','vendor.js']
}

module.exports = {
  entry: {
      index:'index.js'
  }
}

module.exports = {
  entry: {
      index:['index.js','app.js'],
      vendor: 'vendor.js'
  }
}

module.exports = {
  entry: 'index.js',
  output: {
      filename: 'index.min.js'
  }
}

module.exports = {
  entry: {
    index: 'index.js',
    vendor: 'vendor.js'
  },
  output: {
      filename: '[name].min[hash:5].js'
  }
}

module.exports = {
  module: {
      rules: [
        {
            test: /\.css$/,
            use: 'css-loader'
        }
      ]
  }
}

module.exports = {
 plugins: [
    new webpack.optimize.UglifyJsPlugin()
 ]
}

module.exports = {
    entry: {
       app: 'app.js'
    },
    output: {
        filename: '[name].[hash:8].js'
    },
    module: {
        rules:[
            test: /\.js$/,
            use: {
                loader: 'babel-loader',
                options: {
                    presets: [
                        '@babel/preset-env',{
                            //指定target为根据哪些语法编译
                            targets: {
                                browsers: ['> 1%','last 2 versions']
                            }
                        }
                    ]
                }
            },
            exclude: '/node_modules'
        ]
    }
}

module.exports = {
    entry: {
        'app': 'app.js'
    },
    output: {
        filename: '[name].bundle.js'
    },
    module: {
        rules: [
            test: /\.tsx?$/,
            use: {
                loader: 'ts-loader'
            }
        ]
    }
}

 {
    "compilerOptions": {
         "module": "comonjs",
         "target": "es5", //编译后的文件在哪个环境运行
         "allowJs": true,//允许js语法
    },
    "include": [
        //编译路径
        "./src/*"
    ],
    "exclude": [
        //排除编译文件
        "./node_modules"
    ]
 }

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

module.exports = {
    entry: {
        "pageA": "./src/pageA",
        "pageB": "./src/pageB",
        "vendor": ['loash']//业务代码和第三方代码区分开,给loash单独打一个包
    },
    output: {
        path: path.resolve(__dirname, './dist'),
        filename: '[name].bundle.js',
        chunkFilename: '[name].chunk.js'
    },
    plugins: [
    // 提取common
    new webpack.optimize.CommonsChunkPlugin({
         name: 'common',
         minChunks:2,//出现两次就打包成common代码
         chunks: ['pageA','pageB']//指定范围提取公共代码
     })
        
    // 提取vendor、取业务代码manifest
     new webpack.optimize.CommonsChunkPlugin({
         //把entry的vendor代码和这里的common（webpack打包的）代码合并
         names: ['vendor','manifest']
         minChunks: Infinity
     })
     // ==== 提取业务代码manifest== 合并到上面names中
     // 如果不想把webpack打包的代码和vendor代码合并 需要提取到manifest
     //new webpack.optimize.CommonsChunkPlugin({
         // webpack代码和vendordiam区分开
       //  name: 'manifest' //manifest即生成
       //  minChunks: Infinity
    // })
     
    ]
}