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Systems that map image sources stored in data attributes to src attributes based on visibility triggers.
Distinct from Attribute Extractors: Candidates focus on simple attribute extraction or barcode initialization, not the systemic replacement for lazy loading.
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Echo is a JavaScript lazy loading library designed to defer the rendering of images and background images until they enter the browser viewport. It functions as a viewport-based image loader that replaces data attributes with source URLs to improve initial page load speed and overall frontend performance. The project differentiates itself by acting as a memory-efficient image manager. In addition to loading assets upon visibility, it includes capabilities to unload offscreen images from memory once they leave the viewport to conserve system resources. The library manages browser resource uti
Replaces custom data attributes with actual source URLs based on intersection events or manual triggers.