Scroll to a certain element of the current page in Angular 4

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独厮守ぢ
独厮守ぢ 2020-12-19 06:16

Upon clicking a button (which is bottom of the page), I want to go to a certain element (in my case, #navbar) which is in the top of the current page, but I don\'t know how

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  •  清酒与你
    2020-12-19 06:56

    You can do this with javascript:

    gotoTop() {
      let el = document.getElementById('navbar');
      el.scrollTop = el.scrollHeight;
    }
    

    This will bring the DOM element with id="navbar" into view when the method is called. There's also the option of using Element.scrollIntoView. This can provide a smooth animation and looks nice, but isn't supported on older browsers.

    If the element is in a different component you can reference it several different ways as seen in this question.

    The easiest method for your case would likely be:

    import { ElementRef } from '@angular/core'; // at the top of component.ts
    
    constructor(myElement: ElementRef) { ... } // in your export class MyComponent block
    

    and finally

    gotoTop() {
      let el = this.myElement.nativeElement.querySelector('nav');
      el.scrollIntoView();
    }
    

    Working plunker.

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