What are some practical use cases for the Intersection Observer API?
The Intersection Observer API is great for lazy loading images, infinite scrolling, and triggering animations when elements come into view.
Can you explain how lazy loading works with it?
Sure! With lazy loading, you can defer loading images until they are about to enter the viewport, improving performance.
What about infinite scrolling? How does that work?
Infinite scrolling uses the Intersection Observer to detect when the user scrolls near the bottom of the page, then loads more content automatically.
Are there any performance benefits to using this API?
Yes, it reduces the number of event listeners and improves performance by only observing elements that are relevant to the user.
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