webpack配置uglifyjs-webpack-plugin压缩

1. 安装代码压缩插件

npm install uglifyjs-webpack-plugin --save-dev

2. 在webpack.base.conf.js中配置

/*
 * @Descripttion: 
 * @version: 
 * @Author: zhangfan
 * @email: [email protected]
 * @Date: 2020-05-18 13:46:43
 * @LastEditors: zhangfan
 * @LastEditTime: 2020-07-24 17:26:14
 */

'use strict';
const path = require('path');
const utils = require('./utils');
const config = require('../config');
const vueLoaderConfig = require('./vue-loader.conf');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
function resolve(dir) {
     
	return path.join(__dirname, '..', dir);
}

module.exports = {
     
	context: path.resolve(__dirname, '../'),
	entry: {
     
		// app: './src/main.js'
		app: [ 'babel-polyfill', './src/main.js' ]
	},
	plugins: [
		new UglifyJsPlugin({
     
			uglifyOptions: {
     
				compress: {
     
					warnings: false
				}
			},
			sourceMap: config.build.productionSourceMap,
			parallel: true
		})
	],
	output: {
     
		path: config.build.assetsRoot,
		filename: '[name].js',
		publicPath: process.env.NODE_ENV === 'production' ? config.build.assetsPublicPath : config.dev.assetsPublicPath
	},
	resolve: {
     
		extensions: [ '.js', '.vue', '.json' ],
		alias: {
     
			vue$: 'vue/dist/vue.esm.js',
			'@': resolve('src')
		}
	},
	module: {
     
		rules: [
			{
     
				test: /\.vue$/,
				loader: 'vue-loader',
				options: vueLoaderConfig
			},
			{
     
				test: /\.js$/,
				loader: 'babel-loader',
				include: [ resolve('src'), resolve('test'), resolve('node_modules/webpack-dev-server/client') ]
			},
			{
     
				test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
				loader: 'url-loader',
				options: {
     
					limit: 10000,
					name: utils.assetsPath('img/[name].[hash:7].[ext]')
				}
			},
			{
     
				test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
				loader: 'url-loader',
				options: {
     
					limit: 10000,
					name: utils.assetsPath('media/[name].[hash:7].[ext]')
				}
			},
			{
     
				test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
				loader: 'url-loader',
				options: {
     
					limit: 10000,
					name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
				}
			},
			{
     
				test: /\.less$/,
				loader: 'style-loader!css-loader!less-loader'
			}
		]
	},
	node: {
     
		// prevent webpack from injecting useless setImmediate polyfill because Vue
		// source contains it (although only uses it if it's native).
		setImmediate: false,
		// prevent webpack from injecting mocks to Node native modules
		// that does not make sense for the client
		dgram: 'empty',
		fs: 'empty',
		net: 'empty',
		tls: 'empty',
		child_process: 'empty'
	}
};