webpack.prod.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
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');

module.exports = {
	mode: 'production',
	entry: path.join(__dirname, '/src/index.js'),
	output: {
		filename: 'build.js', // for seperate files and names check the basics
		path: path.join(__dirname, '/dist'),
	},
	optimization: {
		minimizer: [
			new OptimizeCssAssetsPlugin(),
			new TerserPlugin(),
			new HtmlWebpackPlugin({
				template: path.join(__dirname, '/src/index.html'),
				minify: {
					removeAttributeQuotes: true,
					collapseWhitespace: true,
					removeComments: true,
				},
			}),
		],
	},
	plugins: [
		new CleanWebpackPlugin(),
		new MiniCssExtractPlugin({ filename: '[name].[contenthash].css' }),
	],
	module: {
		rules: [
			{
				test: /\.js$/,
				exclude: /node-modules/,
				loader: 'babel-loader',
			},
			{
				test: /\.scss$/,
				use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
			},
			{
				test: /\.html$/,
				use: ['html-loader'],
			},
			{
				test: /\.(png|jpe?g|gif)$/i,
				use: {
					loader: 'file-loader',
					options: {
						esModule: false,
						name: '[name].[hash].[ext]',
						outputPath: 'imgs',
					},
				},
			},
		],
	},
};