Webpack性能优化 DLL 用法详解

const webpack = require('webpack')
const library = '[name]_lib'
const path = require('path')

module.exports = {
 entry: {
 vendors: ['react', 'lodash']
 },

 output: {
 filename: '[name].dll.js',
 path: 'dist/',
 library
 },

 plugins: [
 new webpack.DllPlugin({
  path: path.join(__dirname, 'dist/[name]-manifest.json'),
  // This must match the output.library option above
  name: library
 }),
 ],
}

const webpack = require('webpack')

module.exports = {
 entry: {
 app: './src/index'
 },
 output: {
 filename: 'app.bundle.js',
 path: 'dist/',
 },
 plugins: [
 new webpack.DllReferencePlugin({
  context: __dirname,
  manifest: require('./dist/vendors-manifest.json')
 })
 ]
}

$ webpack --config webpack.dll.config.js
$ webpack --config webpack.config.js

<script src="/dist/vendors.dll.js"></script>
<script src="/dist/app.bundle.js"></script>

$ webpack --config webpack.dll.config.js

const webpack = require('webpack')
const DllLinkPlugin = require('dll-link-webpack-plugin')

module.exports = {
 // ...
 plugins: [
 new DllLinkPlugin({
  config: require('webpack.dll.config.js')
 })
 ]
}

$ webpack --config webpack.config.js