[javascript] How to Lazy Load div background images

Lazy loading images using above mentioned plugins uses conventional way of attaching listener to scroll events or by making use of setInterval and is highly non-performant as each call to getBoundingClientRect() forces the browser to re-layout the entire page and will introduce considerable jank to your website.

Use Lozad.js (just 569 bytes with no dependencies), which uses InteractionObserver to lazy load images performantly.

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