Portrait Dr. Axel Rauschmayer
Dr. Axel Rauschmayer
Homepage | Twitter
Cover of book “Exploring ES6”
Book, exercises, quizzes
(free to read online)
Logo of newsletter “ES.next news”
Newsletter (free)
Cover of book “JavaScript for impatient programmers”
Book (free online)

Compiling TypeScript via webpack and babel-loader

[2019-10-12] dev, typescript, webpack, babel
(Ad, please don’t block)

ts-loader has one downside: We can’t pipe the output of another loader into it; it always reads the original file. As a work-around, we can use babel-loader to compile TypeScript. This blog post explains how.


  "devDependencies": {
    "@babel/core": "^7.6.4",
    "@babel/preset-env": "^7.6.3",
    "@babel/preset-react": "^7.6.3",
    "@babel/preset-typescript": "^7.6.0",
    "babel-loader": "^8.0.6",
  "babel": {
    "presets": [


  • The order of the presets seems to matter. My setup didn’t work if @babel/env came after @babel/typescript.
  • preset-env: Make sure you get targeted browsers and the inclusion of builtins right (see documentation).
    • For example, if you transpile async functions to JavaScript that doesn’t even use generators, then you need to include the regenerator runtime.


module.exports = {
  module: {
    rules: [
        test: /\.tsx?$/,
        loader: 'babel-loader',