Front-End Build Tools

Chapter 3: Webpack Configuration

3.1 webpack.config.js

Webpack configuration controls how your application is built.

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

module.exports = {
    mode: process.env.NODE_ENV || 'development',
    entry: './src/index.js',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].[contenthash].js',
        clean: true
    },
    module: {
        rules: [
            {
                test: /.jsx?$/,
                exclude: /node_modules/,
                use: 'babel-loader'
            },
            {
                test: /.css$/,
                use: [MiniCssExtractPlugin.loader, 'css-loader']
            }
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: './src/index.html'
        }),
        new MiniCssExtractPlugin({
            filename: '[name].[contenthash].css'
        })
    ],
    optimization: {
        splitChunks: {
            chunks: 'all'
        }
    }
};
    entry: './src/index.js',
    output: {
        path: __dirname + '/dist',
        filename: 'bundle.js'
    }
};