var path = require('path');
	module.exports = {
		entry: './src/index.js',
		output: {
			path: path.resolve(__dirname, 'build'),
			filename: 'index.js',
			libraryTarget: 'commonjs2' // THIS IS THE MOST IMPORTANT LINE! :mindblow: I wasted more than 2 days until realize this was the line most important in all this guide.
		},
		module: {
			rules: [
				{
					test: /\.js$/,
					include: path.resolve(__dirname, 'src'),
					exclude: /(node_modules|bower_components|build)/,
					use: {
						loader: 'babel-loader',
						options: {
							presets: ['env']
						}
					}
				}
			]
		},
		externals: {
			'react': 'commonjs react' // this line is just to use the React dependency of our parent-testing-project instead of using our own React.
		}
	};