angular 2.0 equivalent to $scope.$apply

Question

I am trying to get started with angular 2.0, now I was wondering how I can initiate an update to the view after some external event changed data.

In details I have a

Answer 1

setTimeout(function(){
//whatever u want here
},0)

ref : http://blog.mgechev.com/2015/04/06/angular2-first-impressions/