webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { DefinePlugin } = require('webpack');

const config = {
    entry: {
        app: './src/index.tsx',
    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].js',
    },
    module: {
        rules: [
            {
                test: /\.(js|jsx|ts|tsx)$/,
                use: 'babel-loader',
                exclude: /node_modules/,
            },
            {
                test: /\.css$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: 'css-loader',
                        options: {
                            importLoaders: 1,
                        },
                    },
                    'postcss-loader'
                ],
            },
            {
                test: /\.scss$/,
                use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
            },
            {
                test: /\.svg$/,
                use: 'file-loader',
            },
            {
                test: /\.jpg$/,
                use: 'file-loader',
            },
            {
                test: /\.jpeg$/,
                use: 'file-loader',
            },
            {
                test: /\.png$/,
                use: [
                    {
                        loader: 'url-loader',
                        options: {
                            mimetype: 'image/png',
                        },
                    },
                ],
            },
        ],
    },
    resolve: {
        extensions: ['.js', '.jsx', '.ts', '.tsx']
    },
    devServer: {
        static: {
            directory: path.join(__dirname, "dist")
        },
        headers: {
            'Access-Control-Allow-Origin': '*',
            'Access-Control-Allow-Methods':
                'GET, POST, PUT, DELETE, PATCH, OPTIONS',
            'Access-Control-Allow-Headers':
                'X-Requested-With, content-type, Authorization',
        },
    },
    // optimization: {
    //     runtimeChunk: 'single',
    //     splitChunks: {
    //         cacheGroups: {
    //             vendor: {
    //                 test: /[\\/]node_modules[\\/]/,
    //                 name: 'vendors',
    //                 chunks: 'all',
    //             },
    //         },
    //     },
    // },
    plugins: [
        new MiniCssExtractPlugin(),
        new DefinePlugin({
            'process.env.FORCE_REDUCED_MOTION': JSON.stringify(
                process.env.FORCE_REDUCED_MOTION
            ),
            process: { env: {} }
        }),
    ],
};

module.exports = (env, argv) => {
    if (argv.hot) {
        // Cannot use 'contenthash' when devServer reloading is enabled.
        config.output.filename = '[name].js';
    }

    return config;
};