angular2-changedetection Archives

angular, Programming

IT Nursery

How to force a component’s re-rendering in Angular 2?

How to force a component’s re-rendering in Angular 2? For debug purposes working with Redux i’d like to force a component to re-render ...

May 29, 2022
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angularjs, Programming

IT Nursery

What is the Angular equivalent to an AngularJS $watch?

In AngularJS you were able to specify watchers to observe changes in scope variables using the $watch function of the $scope. What is ...

May 26, 2022
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What’s the difference between markForCheck() and detectChanges()

What is the difference between ChangeDetectorRef.markForCheck() and ChangeDetectorRef.detectChanges()? I only found information on SO as to the difference between NgZone.run(), but not between ...

May 22, 2022
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@ViewChild in *ngIf

Question What is the most elegant way to get @ViewChild after corresponding element in template was shown? Below is an example. Also Plunker ...

May 13, 2022
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Triggering change detection manually in Angular

I’m writing an Angular component that has a property Mode(): string. I would like to be able to set this property programmatically not ...

May 5, 2022
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ExpressionChangedAfterItHasBeenCheckedError Explained

Please explain to me why I keep getting this error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Obviously, I only get it ...

May 4, 2022
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How to detect when an @Input() value changes in Angular?

I have a parent component (CategoryComponent), a child component (videoListComponent) and an ApiService. I have most of this working fine i.e. each component ...

April 26, 2022
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