This lesson covers using your first TypeScript Interface and what happens to the Interface when it is compiled down to JavaScript.
Define the interfaces:
// interfaces.ts export interface Person { name: String } export interface SocialNetwork{ title: String; getPeople(): Person[]; }
Use interface:
import {SocialNetwork} from ‘./interfaces‘;
class SocialNetworks implements SocialNetwork{
title = "Facebook";
getPeople(){
return [{name: ‘John‘}]
}
}
new SocialNetworks();
To notice that, interfaces won‘t output to the js file, it is just used when compile time.
[TypeScript ] What Happens to Compiled Interfaces
原文：http://www.cnblogs.com/Answer1215/p/5573063.html