Skip to Content
Learning TypeScript 2.x - Second Edition
book

Learning TypeScript 2.x - Second Edition

by Remo H. Jansen
April 2018
Beginner content levelBeginner
536 pages
13h 21m
English
Packt Publishing
Content preview from Learning TypeScript 2.x - Second Edition

CommonJS modules (runtime only)

If we compile the external module that we defined in the ES6 modules section into an CommonJS module (using the flag --compile commonjs), we will obtain the following CommonJS module:

var UserModel = (function () { 
    function UserModel() { 
      //... 
    } 
    return UserModel; 
})(); 
module.exports = UserModel; 

As we can see in the preceding code snippet, the CommonJS module definition syntax is almost identical to that of the legacy external module syntax. The main difference is the usage of the module object and its exports property instead of the exports keyword.

The preceding CommonJS module can be loaded natively by a Node.js application using the import keyword and the require function:

import UserModel = require('./UserModel'); ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Mastering TypeScript - Fourth Edition

Mastering TypeScript - Fourth Edition

Nathan Rozentals
Learning TypeScript

Learning TypeScript

Josh Goldberg
TypeScript for Beginners

TypeScript for Beginners

Bharath Thippireddy

Publisher Resources

ISBN: 9781788391474Supplemental Content