How do you write a node module using typescript?

Question

So, the general answer for the other question (How do you import a module using typescript) is:

1) Create a blah.d.ts definition file.

2) Use:

Answer 1

Typescript has really improved since this question was asked. In recent versions of Typescript, the language has become a much more strict superset of Javascript.

The right way to import/export modules is now the new ES6 Module syntax:

myLib.ts

export function myFunc() {
  return 'test'
}

package.json

{
  "name": "myLib",
  "main": "myLib.js",
  "typings": "myLib.d.ts"
}

Dependents can then import your module using the new ES6 syntax:

dependent.ts

import { myFunc } from 'myLib'

console.log(myFunc())
// => 'test'

For a full example of a node module written in Typescript, please check out this boilerplate:

https://github.com/bitjson/typescript-starter/