rxjs - Angular 2 equivalent of Ember.Computed('Prop1','Prop2'...'prop n') -


i trying port ember application angular 2 , failed see how can create
computed properties--properties observing other properties changes , reacting
in angular 2.

[(myvar)] &&  onmyvarchange= new eventmitter();

observes changes self , react.

any help/directions great.

update :

solved using answer @nazim used typescript properties

ts (compoment.ts)

  private _isvalid: boolean;   public isvalid(): boolean {     return this._isvalid;   }   public set isvalid(v: boolean) {     this._isvalid = v;   }   // read property   private _show: boolean;   public show(): boolean {     return this._isvalid;   }

template (component.html) 

 <h2 *ngif="show">show me</h2>

from understand, angular 2 uses native es2015 computed properties. ex. define person component:

export class personcomponent {   firstname: string;   lastname: string;    fullname() {     return `${this.firstname} ${this.lastname}`;  } }

and use ngmodel bind value of fullname template element.


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