webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin')
const {
    CleanWebpackPlugin
} = require('clean-webpack-plugin');

module.exports = {
    mode: 'development',
    entry: {
        app: './src/index.js'
    },
    output: {
        filename: '[name].bundle.js',
        path: path.resolve(__dirname, 'dist')
    },
    devtool: 'inline-source-map',
    devServer: {
        contentBase: './dist'
    },
    plugins: [
        new CleanWebpackPlugin(),
        new HtmlWebpackPlugin({
            title: 'VanillaJS Try-out'
        })
    ],
    module: {
        rules: [{
                test: /\.css$/,
                use: [
                    'style-loader',
                    'css-loader'
                ]
            },
            {
                test: /\.js(x)?$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env'],
                        plugins: [
                            '@babel/plugin-syntax-jsx',
                            '@babel/plugin-transform-react-jsx'
                        ]
                    }
                }
            }
        ]
    }
};