Lazy loader is a jQuery plugin written in JavaScript. It delays loading of images in (long) web pages. Images outside of viewport (visible part of web page) wont be loaded before user scrolls to them. Using lazy load on long web pages containing many large images makes the page load faster. Browser will be in ready state after loading visible images. In some cases it can also help to reduce server load. Lazyloader inspired by YUI ImageLoaderUtility by Matt Mlinac.
Lazy loading is a design pattern commonly used in computer programming to defer initialization of an object until the point at which it needed. It can give to efficiency in the program’s operation if properly and appropriately used.