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webpack.prod.js
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webpack.prod.js
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const {merge} = require('webpack-merge');
const common = require('./webpack.common');
const path = require('path');
module.exports = merge(common, {
mode: 'production',
module: {
rules: [
{
test: /\.js$/,
exclude: '/node_modules/',
use: [
{
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env'],
},
},
],
},
],
},
optimization: {
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,
},
},
},
},
output: {
filename: '[name].bundle.js',
path: path.resolve(__dirname, 'dist'),
},
});