jc-timeline/webpack.dev.js

const path = require('path');
const { merge } = require('webpack-merge');
const common = require('./webpack.common.js');

const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = merge(common,{
  entry: {
    Timeline:'./src/Timeline.ts',
    index:{
      import:'./dev/index.ts',
      dependOn:"Timeline"
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Development',
    }),
  ],
  mode: 'development',
  devtool: 'inline-source-map',
  devServer: {
    contentBase: path.join(__dirname, 'dist'),
    compress: true,
    port: 9000
  },
});