Angular 2 @angular/router 3.0.0-alpha.7 - Accessing Multiple Parameters

问题

I am just trying the new router in Angular 2 announced recently i.e. Angular 2 @angular/router 3.0.0-alpha.7

I know that in new router we can access route parameters using below code:

this.activatedRoute.params
            .map(params => params['id'])
            .subscribe((id) => {

             //use param id

             });

Can anyone please guide how do we handle the case in which we have multiple multiple parameters in our route?

I mean how do we retrieve the values of multiple parameters from route.

回答1:

One way you could do it is using Parameter handling and Destructuring like this:

this.activatedRoute.params
  .map(params => [params['id'], params['p2'], params['p3']]) <== pass desired array
  .subscribe(([id, p2, p3]) => { <== destructuring params
      //use param id, p2 or p3
   });

See also HeroDetailComponent component here http://plnkr.co/edit/JtuOAZsZPhkn1CISQaO9?p=preview

Or you can write a bit simple:

this.activatedRoute.params
  .subscribe(({id, p2, p3}) => { <== destructuring params
      //use param id, p2 or p3
   });

Plunker sample (HeroDetailComponent)

来源：https://stackoverflow.com/questions/37903073/angular-2-angular-router-3-0-0-alpha-7-accessing-multiple-parameters