webpack.config.js

var path = require('path'),
    webpack = require('webpack');

module.exports = {
    entry: './example/main.ts',
    output: {
        path: path.resolve(__dirname, './dist'),
        publicPath: '/dist/',
        filename: 'index.js'
    },
    module: {
        rules: [
            { test: /\.ts$/, exclude: [/node_modules/], use: ['ts-loader'] },
            { test: /\.css$/, use: ['style-loader', 'css-loader'] }
        ]
    },
    resolve: {
        extensions: [".tsx", ".ts", ".js"]
    },
    devServer: {
        contentBase: path.resolve(__dirname, './example'),
        historyApiFallback: true,
        noInfo: true
    },
    // devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
    // module.exports.devtool = '#source-map'
    module.exports.plugins = (module.exports.plugins || []).concat([
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: '"production"'
            }
        }),
        // new webpack.optimize.UglifyJsPlugin({
        //     compress: {
        //         warnings: false
        //     }
        // })
    ])
}