demo-lenguaje-2/webpack.config.js

A React component that sums two number.

const path = require('path');

module.exports = {
  entry: './src/index.js',
	output: {
		path: path.resolve(__dirname, 'build'),
		filename: 'index.js',
		libraryTarget: 'commonjs2'
	},
	module: {
		rules: [
			{
				test: /\.js$/,
				include: path.resolve(__dirname, 'src'),
				exclude: /(node_modules|build)/,
				use: {
					loader: 'babel-loader',
					options: {
						presets: [ '@babel/preset-env' ]
					}
				}
			},
			{
				test: /\.css$/i,
				use: [ 'style-loader', 'css-loader' ]
			},
			{
				test: /.(jpg|jpeg|gif|png|svg)$/,
				use: [ 'url-loader' ]
			},
			{
				test: /\.(js|jsx)$/,
				exclude: /node_modules/,
				use: [ 'babel-loader', 'eslint-loader' ]
			}
		]
	},
	externals: {
		react: 'commonjs react'
	}
};