webpack.config.js

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextWebpackPlugin = require('extract-text-webpack-plugin');
module.exports = {
  mode: 'none',
 // entry: './client/index',
  entry: './src/class-work',
  output: {
    filename: "[name].bundle.js",
    chunkFilename: '[name].bundle.js',
    path:  path.resolve(__dirname,'dist')
  },
  devtool: "source-map",
  resolve: {
    extensions: [".ts", ".tsx", ".js", ".json"]
  },
  module: {
    rules: [
      { test: /\.tsx?$/, loader: "ts-loader", exclude: ["node_modules"] },
      {
        test: /\.css/,
        loader: ExtractTextWebpackPlugin.extract({
          fallback: "style-loader",
          use: "css-loader"
        })
      }
    ]
  },
  optimization: {
    splitChunks: {
      cacheGroups: {
        vendor: {
          chunks: 'initial',
          name: 'vendor',
          test: 'vendor',
          enforce: true
        },
      }
    },
    runtimeChunk: true
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./client/index.html"
    }),
    new ExtractTextWebpackPlugin('styles.css')
  ]
};