$scope.$watch

[daniele-zurico]

Hello all guys,
I don't know if that problem was already solved (i've take a look on the previous bugs but there is nothing on that).

So I've created a component like that:

<my-component [(data)]="serverData"></my-component>

serverData is updated from clickEvent or after n minutes and inside my component I've:

$scope.$watch('je.data', (n) => { 
 //perform action
});

Obviously it's a failure point for angular 2.0. How I can avoid that?

tnx

[david-gang]

What is exactly the problem?

[MikeRyanDev]

One of the features we have planned is to support opt-in lifecycle events just like Angular 2. Preferably, we'd like this to be a launch feature for ng-forward.

In your example, lifecycle events would work like this:

@Component({ selector: 'my-component' })
class MyComponent{
  onChange(propertyName: string, changes: propertyChange){
    console.log(`Property: ${propertyName}, oldValue: ${changes.oldValue}, newValue: ${changes.newValue}`);
  }
}

Until this lands, you'll unfortunately need to continue injecting $scope and manually creating watchers.