webpack.config.js

const path = require('path');
const pkg = require('./package.json');

const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CopyPlugin = require("copy-webpack-plugin");

const devMode = process.env.NODE_ENV !== "production";

module.exports = {
    mode: devMode ? 'development' : 'production',
    entry: './src/index.js',
    plugins: [
        new HtmlWebpackPlugin({
            template: 'src/index.html',
            filename: 'index.html'
        }),
        new CopyPlugin({
            patterns: [
                { from: 'src/robots.txt', to: 'robots.txt' }
            ],
        }),
    ],
    output: {
        filename: '[name]-[contenthash].js',
        path: path.resolve(__dirname, 'dist'),
        assetModuleFilename: 'assets/[hash][ext]',
        clean: true
    },
    optimization: {
        splitChunks: {
            chunks: 'all',
            cacheGroups: {
                commons: {
                    test: /[\\/]node_modules[\\/]/,
                    name: 'vendors',
                    chunks: 'all',
                },
            },
        }
    },
    module: {
        rules: [
            {
                test: /\.html$/i,
                loader: "html-loader",
            },
            {
                test: /\.(sa|sc|c)ss$/i,
                use: [
                    "style-loader",
                    "css-loader",
                    "sass-loader",
                ],
            },
            {
                test: /\.js$/,
                exclude: /(node_modules)/,
                use: {
                    loader: 'babel-loader',
                }
            },
            {
                test: /\.(png|svg|jpg|jpeg|gif)$/i,
                type: 'asset/resource',
            },
            {
                test: /\.(woff|woff2|eot|ttf|otf)$/i,
                type: 'asset/resource'
            },
        ],
    },
    devServer: {
        static: './dist',
        hot: true,
        watchFiles: ['src/**/*']
    },
};