What is lazy loading images in JavaScript?

Lazy loading images is a technique used in web development to delay the loading of images until they are needed, typically when they come into the viewport. This improves page load times and overall performance, especially on pages with a lot of images.

By using lazy loading, images that are off-screen are not loaded until the user scrolls down to them. This reduces the initial load time of the page, saves bandwidth, and enhances the user experience.


lazy loading images web performance javascript optimization page load time

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