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webpack.prod.js
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webpack.prod.js
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const {merge} = require('webpack-merge');
const {CleanWebpackPlugin} = require('clean-webpack-plugin');
const CompressionPlugin = require('compression-webpack-plugin');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const common = require('./webpack.common');
module.exports = merge(common, {
mode: 'production',
module: {
rules: [{
test: /\.js$/,
exclude: '/node_modules/',
use: [{
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env'],
},
}],
}],
},
plugins: [
new CleanWebpackPlugin(),
new CompressionPlugin({
filename: '[path].gz[query]',
algorithm: 'gzip',
test: /\.(js|css)$/,
}),
],
optimization: {
minimizer: [
new UglifyJsPlugin({
parallel: true,
uglifyOptions: {
compress: false,
ecma: 6,
mangle: true,
},
sourceMap: true,
}),
],
splitChunks: {
chunks: 'all',
minSize: 20000,
maxSize: 70000,
minChunks: 1,
maxAsyncRequests: 30,
maxInitialRequests: 30,
automaticNameDelimiter: '.',
enforceSizeThreshold: 50000,
cacheGroups: {
defaultVendors: {
test: /[\\/]node_modules[\\/]/,
priority: -10,
},
default: {
minChunks: 2,
priority: -20,
reuseExistingChunk: true,
},
},
},
},
});