Learning TypeScript 2.x - Second Edition

Nested internal modules

We can nest one namespace inside another as follows:

namespace App { 
    export namespace Models { 
        export class UserModel { 
            // ... 
        } 
        export class TalkModel { 
            // ... 
        } 
    } 
} 

In the preceding example, we have declared a namespace named App, and inside it, we have declared a public namespace named Models, which contains two public classes: UserModel and TalkModel.

We can then access the namespace entities by indicating the full namespace name:

const user = new App.Models.UserModel(); 
const talk = new App.Models.TalkModel();