Angular 2 and TypeScript Promises

Question

I\'m trying to use the routerCanDeactivate function for a component in my app. The simple way to use it is as follows:

routerCanDeactivate() {
             


        

Answer 1

Can also be done out of the box in the Angular2+ world using Subjects:

export class MyComponent {
  private subject: Subject;

  routerCanDeactivate(): PromiseLike {
    $('#modal').modal('show');
    return this.subject.toPromise();
  }

  handleRespone(res: boolean) {
    this.subject.next(res);
  }
}