webpack.config.js

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

const Config = {
    entry: './src/index.js',
    module: {
        rules: [
            {
                test: /\.html$/i,
                loader: 'html-loader',
                options: {
                    minimize: true
                }
            },
            {
                test: /\.m?js$/,
                exclude: /(node_modules)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env']
                    }
                }
            },
            {
                test: /\.s[ac]ss$/i,
                use: [
                    // fallback to style-loader in development
                    process.env.NODE_ENV !== 'production'
                        ? 'style-loader'
                        : MiniCssExtractPlugin.loader,
                    {
                        loader: 'css-loader',
                        options: {
                            sourceMap: true,
                        },
                    },
                    {
                        loader: 'sass-loader',
                        options: {
                            sourceMap: true,
                        },
                    },
                ],
            },
            {
                test: /\.(png|jpe?g|gif)$/i,
                use: {
                    loader: 'file-loader',
                    options: {
                        outputPath: 'images',
                        publicPath: 'images',
                        name: '[name]_[contenthash].[ext]',
                        esModule: false,
                    },
                }
            },
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: "./src/index.html",
            filename: "index.html"
        }),
        new MiniCssExtractPlugin({
            filename: '[name]_[contenthash].css',
            chunkFilename: '[id]_[contenthash].css',
        })
    ],
    devServer: {
        contentBase: path.join(__dirname, 'dist'),
        compress: true,
        port: 3300,
        open: true
    },
    devtool: "source-map"
};

module.exports = Config;