What are the differences between Intersection Observer and Scroll Event in Vue.js?

What are the differences between Intersection Observer and Scroll Event in Vue.js?

The Intersection Observer API allows you to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document's viewport. In contrast, the Scroll Event is triggered whenever the user scrolls the page, which can lead to performance issues if not handled properly.

Which one is more efficient for lazy loading images?

Intersection Observer is generally more efficient for lazy loading images because it only triggers when the observed element enters or exits the viewport, reducing unnecessary calculations compared to the Scroll Event.

Can I use both together?

Yes, you can use both together. For example, you might use Intersection Observer for lazy loading and Scroll Event for other scroll-related functionalities, but be cautious of performance.

What are some common use cases for Intersection Observer?

Common use cases include lazy loading images, infinite scrolling, triggering animations when elements come into view, and tracking visibility of advertisements.