webpack.config.js

const path = require("path")
const TerserWebpackPlugin = require("terser-webpack-plugin")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const MiniCssExtractPlugin = require("mini-css-extract-plugin")
const CssMinimizerWebpackPlugin = require("css-minimizer-webpack-plugin")
module.exports = {
    entry : "./src/js/index.js",
    output : {
        filename : "bundle.js",
        path : path.resolve(__dirname, "./dist"),
        clean : true
    },
    devtool : "source-map",
    mode : "development",
    devServer : {
        host : "localhost",
        port : 8080,
        open : true,
        watchFiles : "index.html"
    },
    plugins : [
        new HtmlWebpackPlugin({
            title : "keyboard",
            template : "./index.html",
            inject : "body",
            favicon : "./favicon.ico"
        }),
        new MiniCssExtractPlugin({
            filename : "style.css"
        })
    ],
    module : {
        rules : [
            {
                test : /\.css$/,
                use : [MiniCssExtractPlugin.loader, "css-loader"]
            }
        ]
    },
    optimization : {
        minimizer : [
            new TerserWebpackPlugin(),
            new CssMinimizerWebpackPlugin()
        ]
    }
}