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

ES6 modules (runtime and design time)

TypeScript 1.5 introduced support for the ES6 module syntax. The following code snippet defines an external module using the ES6 module syntax:

class UserModel { 
  // ... 
} 
export { UserModel }; 

We don't need to use the namespace keyword to declare an ES6 module, but we must use the export keyword. We can use the export keyword at the bottom of the module or when an entity is declared:

export class TalkModel { 
  // ... 
} 

We can also export an entity using an alias:

class UserModel { 
  // ... 
} 
export { UserModel as User }; // UserModel exported as User 

An export declaration exports all meanings of a name:

interface UserModel { // ... } class UserModel { // ... } export { UserModel }; // Exports both interface ...
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