18款Webpack插件,总会有你想要的!
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是一个独立的模块
模块对外暴露一个js函数
函数的原型(prototype)上定义了一个注入compiler对象的apply方法apply函数中需要有通过compiler对象挂载的webpack事件钩子,钩子的替换中能拿到当前编译的compilation对象,如果是异步编译插件的话可以拿到一部分callback
完成自定义子编译流程并处理complition对象的内部数据
如果异步编译插件的话,数据处理完成后执行callback替换。
01、HotModuleReplacementPlugin
const webpack = require('webpack')
plugins: [
new webpack.HotModuleReplacementPlugin(), // 热更新插件
]
02、html-webpack-plugin
const HtmlWebpackPlugin = require('html-webpack-plugin')
plugins: [
new HtmlWebpackPlugin({
filename: 'index.html',
template: path.join(__dirname, '/index.html'),
minify: {
// 压缩HTML文件
removeComments: true, // 移除HTML中的注释
collapseWhitespace: true, // 删除空白符与换行符
minifyCSS: true, // 压缩内联css
},
inject: true,
}),
]
true:数值,script标签位于html文件的body底部
正文:script标签位于html文件的body底部(同true)
头:script标签位于head标签内
false:不插入生成的js文件,只是单纯的生成一个html文件
const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
module.exports = {
entry: {
index: './src/index.js',
login: './src/login.js',
},
output: {
path: path.resolve(__dirname, 'dist'),
filename: '[name].[hash:6].js',
},
//...
plugins: [
new HtmlWebpackPlugin({
template: './public/index.html',
filename: 'index.html', //打包后的文件名
}),
new HtmlWebpackPlugin({
template: './public/login.html',
filename: 'login.html', //打包后的文件名
}),
],
}
module.exports = {
//...
plugins: [
new HtmlWebpackPlugin({
template: './public/index.html',
filename: 'index.html', //打包后的文件名
chunks: ['index'],
}),
new HtmlWebpackPlugin({
template: './public/login.html',
filename: 'login.html', //打包后的文件名
chunks: ['login'],
}),
],
}
03、clean-webpack-plugin
const { CleanWebpackPlugin } = require('clean-webpack-plugin')
plugins: [
new HtmlWebpackPlugin({
template: path.join(__dirname, '/index.html'),
}),
new CleanWebpackPlugin(), // 所要清理的文件夹名称
]
04、提取文本Webpack插件
const ExtractTextPlugin = require('extract-text-webpack-plugin')
plugins: [
// 将css分离到/dist文件夹下的css文件夹中的index.css
new ExtractTextPlugin('css/index.css'),
]
05、迷你CSS提取插件
初步加载
不重复编译,性能更好
更容易使用
只针对CSS
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
module.exports = {
module: {
rules: [
{
test: /\.(le|c)ss$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
publicPath: '../',
},
},
'css-loader',
'postcss-loader',
'less-loader',
],
},
],
},
plugins: [
new MiniCssExtractPlugin({
filename: 'css/[name].[contenthash:8].css',
chunkFilename: 'css/[id].[contenthash:8].css',
}),
],
}
06、purifycss-webpack
const path = require('path')
const PurifyCssWebpack = require('purifycss-webpack') // 引入PurifyCssWebpack插件
const glob = require('glob') // 引入glob模块,用于扫描全部html文件中所引用的css
module.exports = merge(common, {
plugins: [
new PurifyCssWebpack({
paths: glob.sync(path.join(__dirname, 'src/*.html')),
}),
],
})
07、优化CSS资产Webpack插件
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin") // 压缩css代码
optimization: {
minimizer: [
// 压缩css
new OptimizeCSSAssetsPlugin({})
]
08、UglifyJsPlugin
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
plugins: [
new UglifyJsPlugin({
uglifyOptions: {
compress: {
warnings: false
}
},
sourceMap: true, //是否启用文件缓存
parallel: true //使用多进程并行运行来提高构建速度
})
09、ParallelUglifyPlugin
const ParallelUglifyPlugin = require('webpack-parallel-uglify-plugin')
plugins: [
new ParallelUglifyPlugin({
用于配置缓存存放的目录路径。
cacheDir: '.cache/',
sourceMap: true,
uglifyJS: {
output: {
comments: false,
},
compress: {
warnings: false,
},
},
}),
]
10、terser-webpack-plugin
const TerserPlugin = require('terser-webpack-plugin') // 压缩js代码
optimization: {
minimizer: [
new TerserPlugin({
parallel: 4, // 开启几个进程来处理压缩,默认是 os.cpus().length - 1
cache: true, // 是否缓存
sourceMap: false,
}),
]
}
11、NoErrorsPlugin
plugins: [new webpack.NoEmitOnErrorsPlugin()]
12、压缩webpack插件
const CompressionPlugin = require('compression-webpack-plugin')
plugins: [
new CompressionPlugin({
// gzip压缩配置
test: /\.js$|\.html$|\.css/, // 匹配文件名
threshold: 10240, // 对超过10kb的数据进行压缩
deleteOriginalAssets: false, // 是否删除原文件
}),
]
13、定义插件
plugins: [
new webpack.DefinePlugin({
DESCRIPTION: 'This Is The Test Text.',
}),
]
// 直接引用
console.log(DESCRIPTION)
14、ProvidePlugin
module.exports = {
resolve: {
alias: {
jquery: './lib/jquery',
},
},
plugins: [
//提供全局的变量,在模块中使用无需用require引入
new webpack.ProvidePlugin({
$: 'jquery',
React: 'react',
}),
],
}
15、DLL插件
const path = require('path')
const webpack = require('webpack')
module.exports = {
entry: {
vendor: [
'vue-router',
'vuex',
'vue/dist/vue.common.js',
'vue/dist/vue.js',
'vue-loader/lib/component-normalizer.js',
'vue',
'axios',
'echarts',
],
},
output: {
path: path.resolve('./dist'),
filename: '[name].dll.js',
library: '[name]_library',
},
plugins: [
new webpack.DllPlugin({
path: path.resolve('./dist', '[name]-manifest.json'),
name: '[name]_library',
}),
// 建议加上代码压缩插件,否则dll包会比较大。
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false,
},
}),
],
}
new webpack.DllReferencePlugin({
manifest: require('../dist/vendor-manifest.json'),
})
"scripts": {
"dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
"start": "npm run dev",
"lint": "eslint --ext .js,.vue src",
"build": "node build/build.js",
"build:dll": "webpack --config build/webpack.dll.conf.js"
}
<script type="text/javascript" src="./vendor.dll.js"></script>
16、快乐包
npm i -D happypack
module: {
rules: [
{
test: /\.js$/,
use: ['happypack/loader?id=babel'],
include: [resolve('src'), resolve('test')],
exclude: path.resolve(__dirname, 'node_modules'),
},
{
test: /\.vue$/,
use: ['happypack/loader?id=vue'],
},
]
}
const HappyPack = require('happypack')
// 构造出共享进程池,在进程池中包含5个子进程
const HappyPackThreadPool = HappyPack.ThreadPool({ size: 5 })
plugins: [
new HappyPack({
// 用唯一的标识符id,来代表当前的HappyPack是用来处理一类特定的文件
id: 'babel',
// 如何处理.js文件,用法和Loader配置中一样
loaders: ['babel-loader?cacheDirectory'],
threadPool: HappyPackThreadPool,
}),
new HappyPack({
id: 'vue', // 用唯一的标识符id,来代表当前的HappyPack是用来处理一类特定的文件
loaders: [
{
loader: 'vue-loader',
options: vueLoaderConfig,
},
],
threadPool: HappyPackThreadPool,
}),
]
17、复制webpack插件
const CopyWebpackPlugin = require('copy-webpack-plugin')
module.exports = {
plugins: [
new CopyWebpackPlugin({
patterns: [
{
from: 'public/js/*.js',
to: path.resolve(__dirname, 'dist', 'js'),
flatten: true,
},
],
}),
],
}
18、忽略插件
const Webpack = require('webpack')
plugins: [
//moment这个库中,如果引用了./locale/目录的内容,就忽略掉,不会打包进去
new Webpack.IgnorePlugin(/\.\/locale/, /moment/),
]
import moment from 'moment'
//手动引入所需要的语言包
import 'moment/locale/zh-cn'
moment.locale('zh-cn')
let r = moment().endOf('day').fromNow()
console.log(r)
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