angular Archives - Page 13 of 14

@Directive vs @Component in Angular

What is the difference between @Component and @Directive in Angular? Both of them seem to do the same task and have the same ...

May 3, 2022
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How to go back last page

Is there a smart way to go back last page in Angular 2? Something like this._router.navigate(LASTPAGE); For example, page C has a Go ...

May 2, 2022
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ngIf and ngFor on same element causing error

I’m having a problem with trying to use Angular’s *ngFor and *ngIf on the same element. When trying to loop through the collection ...

April 30, 2022
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How to detect a route change in Angular?

I am looking to detect a route change in my AppComponent. Thereafter I will check the global user token to see if the ...

April 30, 2022
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access key and value of object using *ngFor

I am a bit confused about how to get the key and value of an object in angular2 while using *ngFor for iterating ...

April 30, 2022
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No provider for HttpClient

After upgrading from angular 4.4 to 5.0 and after updating all HttpModule and Http to HttpClientModule I started to get this error. I ...

April 30, 2022
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How to get current route

The current docs only talk about getting route params, not the actual route segments. For example, if i want to find the parent ...

April 28, 2022
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How can I select an element in a component template?

Does anybody know how to get hold of an element defined in a component template? Polymer makes it really easy with the $ ...

April 28, 2022
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What is the equivalent of ngShow and ngHide in Angular 2+?

I have a number of elements that I want to be visible under certain conditions. In AngularJS I would write <div ng-show="myVar">stuff</div> How ...

April 27, 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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