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webpack.prod.js
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const path = require("path");
const common = require("./webpack.common");
const { merge } = require("webpack-merge");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCssAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin")
const HtmlWebpackPlugin = require("html-webpack-plugin");
module.exports = merge(common, {
mode: "production",
// hash in filename to force cache refresh
output: {
filename: "main-[contenthash].js",
path: path.resolve(__dirname, "dist")
},
module: {
rules: [
{
test: /\.css$/i,
use: [
MiniCssExtractPlugin.loader, // 2. convert JS to CSS file
"css-loader" // 1. convert CSS to JS
]
},
]
},
plugins: [
// clean dist folder before build
new CleanWebpackPlugin(),
// separate CSS from main.js
new MiniCssExtractPlugin({
filename: "[name]-[contenthash].css"
}),
// link main.js to main HTML file + minify
new HtmlWebpackPlugin({
template: "./src/index.html",
minify: {
removeAttributeQuotes: true,
collapseWhitespace: true,
removeComments: true
}
})
],
optimization: {
minimizer: [
new OptimizeCssAssetsPlugin(),
new TerserPlugin()
]
}
});