webpack.config.js

const webpack = require("webpack");
const CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = {
  devtool: 'inline-source-map',
  entry: {
    "index": './src/index.ts',
    "index.min": './src/index.ts',
  },
  output: {
    filename: 'dist/[name].js'
  },
  resolve: {
    // Add `.ts` and `.tsx` as a resolvable extension.
    extensions: ['.ts', '.tsx', '.js']
  },
  module: {
    rules: [
      { test: /\.js$/, loader: 'babel-loader' },
      // all files with a `.ts` or `.tsx` extension will be handled by `ts-loader`
      { test: /\.tsx?$/, loader: 'babel-loader!ts-loader' },
      {
        test: /\.css$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            },
          },
        ],
      },
    ]
  },
  plugins: [
    new webpack.optimize.UglifyJsPlugin({
      include: /\.min\.js$/,
      minimize: true
    }) , 
    new CopyWebpackPlugin([
      { from: 'demo/index.html', to: 'dist/' }
    ])
  ]
}