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Lazyr.js – A Small Library for Lazy Loading Images

Posted · Category: MIT License, Tools

Lazyr.js is a small, fast, modern, and dependency-free library for lazy loading images. Lazy loading boosts page speed by deferring the loading of images until they’re in (or near) the viewport. This library makes it completely painless – maximizing speed by keeping options to a minimum.

The scroll event has been debounced to minimize the weight on the browser, and images are revealed within rAF to ensure optimal rendering. For each image, put a placeholder in the src attribute, the regular image in the data-layzr attribute, and the retina image in the data-layzr-retina attribute.


Requirements: JavaScript
Demo: http://callmecavs.github.io/layzr.js/
License: MIT License

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