Answer
Lazy loading delays non-critical modules until needed.
Reduces initial load time and improves page performance.
Quick Answer
Lazy loading modules: const { feature } = await import("./feature.js") loads only when needed — not at startup. Dynamic import() returns a Promise. Combined with route-based splitting in bundlers (Webpack, Vite), each page/route loads only its own code. Images: IntersectionObserver or loading="lazy" attribute. Both reduce initial load time and improve performance metrics.
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SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ