react-awesome-countdowntimer/webpack.config.js

An awesome countdown timer for reactJS, easy to handle use & edit.

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: {
        loaders: [
            {
                // Transform our own .css files with PostCSS and CSS-modules
                test: /\.css$/,
                exclude: /node_modules/,
                use: ['style-loader', 'css-loader'],
            }, {
                // Do not transform vendor's CSS with CSS-modules
                // The point is that they remain in global scope.
                // Since we require these CSS files in our JS or CSS files,
                // they will be a part of our compilation either way.
                // So, no need for ExtractTextPlugin here.
                test: /\.css$/,
                include: /node_modules/,
                use: ['style-loader', 'css-loader'],
            }      ],
        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.
    }
};