Tiven Wang
Wang Tiven June 14, 2017
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npm install --save-dev traceur

Option 1:

./node_modules/.bin/traceur --out public/index.js index.js

node ./public/index.js

Option 2:


// bootstrap.js
var traceur = require('traceur');
traceur.require.makeDefault(function(filename) {
  // don't transpile our dependencies, just our app
  return filename.indexOf('node_modules') === -1;


class Polygon {
  constructor(height, width) {
    this.height = height;
    this.width = width;

class Square extends Polygon {
  constructor(length) {
    // Here, it calls the parent class' constructor with lengths
    // provided for the Polygon's width and height
    super(length, length);
    // Note: In derived classes, super() must be called before you
    // can use 'this'. Leaving this out will cause a reference error.
    this.name = 'Square';

  get area() {
    return this.height * this.width;

  set area(value) {
    this.area = value;

  draw() {

new Square(10).draw();
$ node bootstrap.js

Using Traceur with Node.js



Install the cli and preset of babel:

npm install --save-dev babel-cli

npm install --save-dev babel-preset-env

Create the babel’s environment file .babelrc:

  "presets": ["env"]

Compile JavaScript files in folder src into folder lib:

./node_modules/.bin/babel src -d lib


npm install -g typescript

tsc helloworld.ts

node helloworld.js

If you want add more options for typescript compiler, please add a file named tsconfig.json in the root of your project.

If you want read more knowledge about TypeScript and Node, refer to TypeScript Node Starter


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