webpack 通用模块(每个页面都用到的js)编译

1、项目目录

 

2、配置文件：webpack.config.js

var htmlWebpackPlugin = require('html-webpack-plugin');
var webpack = require('webpack');
module.exports = {
    //    entry: './src/app.js',
    entry: {
        //通用模块
        'common': ['./src/page/common/index.js'],
        'login': ['./src/page/login/index.js'],
        'index': ['./src/page/index/index.js']
    },
    output: {
        path: __dirname + '/dist',
        filename: 'js/[name].js'
    },
    //将外部变量或者模块加载进来
    externals: {
        'jquery': 'window.jQuery'
    },
    module: {
        loaders: [{
                test: /.js$/,
                //以下目录不处理
                exclude: /node_modules/,
                //只处理以下目录
                include: /src/,
                loader: "babel-loader",
                //配置的目标运行环境（environment）自动启用需要的 babel 插件
                query: {
                    presets: ['latest']
                }
            },
            //css 处理这一块
            {
                test: /.css$/,
                use: [
                    'style-loader',
                    {
                        loader: 'css-loader',
                        options: {
                            //支持@important引入css
                            importLoaders: 1
                        }
                    },
                    {
                        loader: 'postcss-loader',
                        options: {
                            plugins: function() {
                                return [
                                    //一定要写在require("autoprefixer")前面，否则require("autoprefixer")无效
                                    require('postcss-import')(),
                                    require("autoprefixer")({
                                        "browsers": ["Android >= 4.1", "iOS >= 7.0", "ie >= 8"]
                                    })
                                ]
                            }
                        }
                    }
                ]
            },
            //less 处理这一块
            {
                test: /.less$/,
                use: ['style-loader',
                    {
                        loader: 'css-loader',
                        options: {
                            //支持@important引入css
                            importLoaders: 1
                        }
                    },
                    {
                        loader: 'postcss-loader',
                        options: {
                            plugins: function() {
                                return [
                                    //一定要写在require("autoprefixer")前面，否则require("autoprefixer")无效
                                    require('postcss-import')(),
                                    require("autoprefixer")({
                                        "browsers": ["Android >= 4.1", "iOS >= 7.0", "ie >= 8"]
                                    })
                                ]
                            }
                        }
                    },
                    'less-loader'
                ]
            },
            //处理html模板
            {
                test: /.html$/,
                use: {
                    loader: 'html-loader'
                }
            },
            //处理图片
            {
                test: /.(png|jpg|gif|svg)$/i,
                loaders: [
                    //小于8k的图片编译为base64，大于10k的图片使用file-loader            
                    'url-loader?limit=8192&name:img/[name]-[hash:5].[ext]',
                    //图片压缩
                    'image-webpack-loader'
                ]

            }
        ]
    },
    plugins: [
        new htmlWebpackPlugin({
            template: 'index.html',
            filename: 'index.html'
        }),
        // 独立通用模块到js/base.js
        new webpack.optimize.CommonsChunkPlugin({
            //公共块的块名称
            name: 'common',
            //生成的文件名
            filename: 'js/common.js'
        })
    ]
}

3、执行命令

npm run webpack

4、执行结果

项目新的目录结构：

common.js部分代码：