CanActivate vs. CanActivateChild with component-less routes

Question

The angular2 documentation about Route Guards left me unclear about when it is appropriate to use a CanActivate guards vs. a CanActivateChild guard

Answer 1

I also confused the angular2's documentation about routeGuard. what's the difference between the CanActivate guard and CanActivateChild guard.

I have some findings,I hope this will help you.

in the auth-guard.service.ts file

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
let url: string = state.url;

return this.checkLogin(url);
}

canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
return this.canActivate(route, state);
}

because the canActivate method is called in the canActivateChild function. you can write a snippet of code that don't call the canActivate method in the canActivateChild function.