Webpack4优化问题
快凌晨两点了，为了找个错误，我简直要发疯了。
"Error: webpack.optimize.UglifyJsPlugin has been removed, please use config.optimization.minimize instead."控制台告诉我100次...
我试着这样修改我的webpack.config.js：
optimization: {
minimize: false
}还有这个
optimization: {
minimizer: [
// we specify a custom UglifyJsPlugin here to get source maps in production
new UglifyJsPlugin({
cache: true,
parallel: true,
uglifyOptions: {
compress: false,
ecma: 6,
mangle: true
},
sourceMap: true
})
]
},总是同一个问题..。
我的文件是正常的，因为它也是捆绑的，但当我尝试打开它时
"start": "webpack-dev-server --mode development --open --hot"
或
"start": "opener http://localhost:3000 & httpster -p 3000 -d ./dist"好吧，这没关系，我读了很多关于这个的文章，这是webpack3 -> webpack4版本的一些问题，但我复制了一些配置代码，就是想不出如何解决它(也许是因为我一个接一个地12+小时使用笔记本电脑，累得要死，但我要睡觉了，只希望当我醒来的时候有人，伟大的人，也能帮助我解决这个问题。
如果你是那种想给我一篇文章而不是答案的人--这也很棒！我充满了学习新东西的热情。
但是，如果你在答案和文章上提供帮助-它会给你带来100+的运气:)
下面是我的webpack.config.js和package.json：
(我留下这个const UglifyJsPlugin = require('uglifyjs-webpack-plugin');只是为了向您展示我也试图用它做一些优化)
/webpack.config.js
var webpack = require("webpack")
var path = require("path")
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
process.noDeprecation = true
module.exports = {
entry: "./src/index.js",
output: {
path:path.join(__dirname, 'dist', 'assets'),
filename: "bundle.js",
sourceMapFilename: 'bundle.map'
},
devtool: '#source-map',
module: {
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
loader: 'babel-loader',
query: {
presets: ['env', 'stage-0', 'react']
}
},
{
test: /\.css$/,
use: ['style-loader','css-loader', {
loader: 'postcss-loader',
options: {
plugins: () => [require('autoprefixer')]
}}]
},
{
test: /\.scss/,
use: ['style-loader','css-loader', {
loader: 'postcss-loader',
options: {
plugins: () => [require('autoprefixer')]
}}, 'sass-loader']
}
]
},
plugins: [
new webpack.DefinePlugin({
"process.env": {
NODE_ENV: JSON.stringify("production")
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
warnings: false,
mangle: false
})
]
}
/package.json
{
"name": "try",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "webpack-dev-server --mode development --open --hot",
"build": "webpack --mode production"
},
"keywords": [
"React",
"state",
"setState",
"explicitly",
"passing",
"props"
],
"author": "andrii",
"license": "ISC",
"devDependencies": {
"babel-core": "^6.26.3",
"babel-loader": "^7.1.5",
"babel-preset-env": "^1.7.0",
"babel-preset-react": "^6.24.1",
"css-loader": "^1.0.0",
"html-webpack-plugin": "^3.2.0",
"postcss-loader": "2.0.6",
"style-loader": "^0.23.0",
"uuid": "^3.3.2",
"sass-loader": "6.0.6",
"webpack": "^4.19.0",
"webpack-cli": "^3.1.0"
},
"dependencies": {
"babel-plugin-syntax-object-rest-spread": "^6.13.0",
"babel-preset-stage-2": "^6.24.1",
"httpster": "1.0.3",
"isomorphic-fetch": "^2.2.1",
"prop-types": "^15.6.2",
"react": "^16.5.1",
"react-dom": "^16.5.1",
"react-icons": "^3.1.0",
"react-redux": "5.0.6",
"react-router-dom": "^4.3.1",
"uglifyjs-webpack-plugin": "^2.0.1",
"webpack-dev-server": "^3.1.8"
}
}此外，为了避免任何愤怒的情绪，我听了这个：http://prntscr.com/l31bam on replay on 2+ hours如果你喜欢古典音乐和钢琴-这首曲子很棒。
感谢您的宝贵时间，祝您度过愉快的一天！
回答 1
Stack Overflow用户
发布于 2018-10-07 11:06:50
我在生产环境中使用webpack4，也必须使用UglifyJsPlugin。
首先，我要确保您的package.json中有正确版本的webpack和UglifyJsPlugin我目前有"webpack": "4.20.2",和"uglifyjs-webpack-plugin": "2.0.1",来确保它们已正确安装我建议您通过运行：rm -rf node_modules && npm install或rm -rf node_modules && yarn install来仔细检查是否已安装正确版本。
接下来，我将检查配置。我的webpack.production.js如下所示
// ...
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
// ...
mode: 'production',
optimization: {
minimizer: [
new UglifyJsPlugin({
cache: true,
parallel: true,
sourceMap: false, // set to true if you want JS source maps
}),
],
},
module: {
//...
},https://stackoverflow.com/questions/52683852
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