What is Intersection Observer API?
Table of Contents What is Intersection Observer API Some features Usage Example In the past, it’s difficult to determine a element is visible in the viewport or not, or how long the user was reading this content. Intersection Observer API offers some features that help users to improve user exprerience and speed up the website. ❔ What is Intersection Observer API? Intersection Observer API offers a way to asynchronously observe changes in UI with ancestor elements or high-level document’s viewports....