说明
玩转webpack课程学习笔记。
JS 文件的压缩
内置了 uglifyjs-webpack-plugin，打包会自动压缩js
CSS 文件的压缩
npm i optimize-css-assets-webpack-plugin -D
1、使用 optimize-css-assets-webpack-plugin
npm i cssnano -D
2、同时使用 cssnano
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
module.exports = {
entry: {
index: './src/index.js',
search: './src/search.js'
},
output: {
path: path.join(__dirname, 'dist'),
filename: '[name]_[chunkhash].js'
},
mode: 'production',
plugins: [
new MiniCssExtractPlugin({
filename: '[name]_[contenthash:8].css'
}),
new OptimizeCSSAssetsPlugin({
assetNameRegExp: /\.css$/g,
cssProcessor: require('cssnano')
})
]
};
html 文件的压缩
1、在src文件里新建index.html，search.html文件
index.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
</body>
</html>
search.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div id="root"></div>
</body>
</html>
npm i html-webpack-plugin -D
2、修改 html-webpack-plugin，设置压缩参数
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
module.exports = {
entry: {
index: './src/index.js',
search: './src/search.js'
},
output: {
path: path.join(__dirname, 'dist'),
filename: '[name]_[chunkhash].js'
},
mode: 'production',
plugins: [
new MiniCssExtractPlugin({
filename: '[name]_[contenthash:8].css'
}),
new HtmlWebpackPlugin({
template: path.join(__dirname, 'src/index.html'),
filename: 'index.html',
chunks: ['index'],
inject: true,
minify: {
html5: true,
collapseWhitespace: true,
preserveLineBreaks: false,
minifyCSS: true,
minifyJS: true,
removeComments: false
}
}),
new HtmlWebpackPlugin({
template: path.join(__dirname, 'src/search.html'),
filename: 'search.html',
chunks: ['search'],
inject: true,
minify: {
html5: true,
collapseWhitespace: true,
preserveLineBreaks: false,
minifyCSS: true,
minifyJS: true,
removeComments: false
}
})
]
};
