webpack.config.js

const path = require("path");
const TerserPlugin = require("terser-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");

module.exports = {
    mode: "production",
    entry: {
        play: "./public/dev/js/play.js",
        index: "./public/dev/js/index.js",
        styles: "./public/dev/scss/styles.scss",
    },
    output: {
        path: path.resolve(__dirname, "public/prod"),
        filename: "[name].js",
    },
    module: {
        rules: [
            {
                test: /\.scss$/i,
                exclude: /node_modules/,
                use: [MiniCssExtractPlugin.loader, "css-loader", "sass-loader"],
            },
        ],
    },
    optimization: {
        minimize: true,
        minimizer: [new TerserPlugin(), new CssMinimizerPlugin()],
    },
    plugins: [
        new TerserPlugin(),
        new MiniCssExtractPlugin({
            filename: "styles.css",
        }),
    ],
};