Angular Elementref With Code Examples

Angular Elementref With Code Examples

In this session, we’ll strive our hand at fixing the Angular Elementref puzzle by utilizing the pc language. The following piece of code will reveal this level.

// in template
//<div #myEl></div>

@ViewYoungster("myEl") el: ElementRef;

ngAfterViewInit(){
  this.el.nativeElement.innerHTML = "Hi";
  console.log(this.el);
}

We have demonstrated, with a plethora of illustrative examples, the best way to sort out the Angular Elementref downside.

What is ElementRef Angular?

Angular ElementRef is a wrapper round a local factor within a View. It’s merely a category that wraps native DOM components within the browser and means that you can work with the DOM by offering the nativeElement object which exposes all of the strategies and properties of the native components.10-Jul-2020

How do I exploit ElementRef in Angular 12?

To manipulate the DOM utilizing the ElementRef , we have to get the reference to the DOM factor within the part/directive. Create a template reference variable for the factor within the part/directive. Use the template variable to inject the factor into part class utilizing the ViewYoungster or ViewKids.

What are the distinction between renderer and ElementRef in Angular 2?

The Renderer is a category that could be a partial abstraction over the DOM. Using the Renderer for manipulating the DOM does not break server-side rendering or Web Workers (the place direct entry to the DOM would break). ElementRef is a category that may maintain a reference to a DOM factor.30-Sept-2016

What is HTML factor in Angular?

Angular components are Angular parts packaged as customized components (additionally referred to as Web Components), an online normal for outlining new HTML components in a framework-agnostic means.

When ought to I exploit ElementRef?

According to Angular docs ElementRef : Use this API because the final resort when direct entry to DOM is required. Permitting direct entry to the DOM could make your utility extra susceptible to XSS assaults. Carefully evaluation any use of ElementRef in your code.

What is the distinction between ViewYoungster and ContentChild?

ViewYoungster is used to pick a component from part’s template whereas ContentChild is used to pick projected content material.12-Nov-2020

WHAT IS view little one in Angular?

ViewChildlink Property decorator that configures a view question. The change detector appears to be like for the primary factor or the directive matching the selector within the view DOM. If the view DOM adjustments, and a brand new little one matches the selector, the property is up to date.

What is @ViewYoungster used for?

The @ViewYoungster decorator permits us to inject right into a part class references to components used inside its template, that is what we should always use it for. Using @ViewYoungster we are able to simply inject parts, directives or plain DOM components.21-Jan-2022

What is HostListener in Angular?

HostListenerlink Decorator that declares a DOM occasion to hear for, and gives a handler technique to run when that occasion happens.

Why ought to we use renderer in Angular?

The Renderer2 class is an abstraction supplied by Angular within the type of a service that enables to govern components of your app with out having to the touch the DOM straight.15-May-2019