Intersection Observer
Intersection Observer
Section titled “Intersection Observer”Introduction
Section titled “Introduction”Intersection Observer efficiently detects when an element becomes visible (intersects) with the viewport or a parent container.
Topics Covered
Section titled “Topics Covered”- Basic Usage — Creating and using an Intersection Observer
- Lazy Loading — Loading images when they become visible
- Infinite Scroll — Loading more content on scroll
Summary
Section titled “Summary”Perfect for lazy-loading images, infinite scroll, animation triggers, and visibility tracking — without scroll event performance issues.