What are the best practices for lazy loading?

What are the best practices for lazy loading images on a website?

The best practices for lazy loading images include using the 'loading' attribute, implementing a placeholder, and ensuring proper fallback for browsers that don't support lazy loading.

How can I implement lazy loading in my React application?

In a React application, you can use the 'React.lazy' and 'Suspense' components to implement lazy loading for components, and for images, you can use libraries like 'react-lazyload'.

Are there any performance metrics I should monitor after implementing lazy loading?

Yes, you should monitor metrics like page load time, time to first paint, and user engagement to assess the impact of lazy loading.

What are the common pitfalls to avoid when using lazy loading?

Common pitfalls include lazy loading critical content, not providing fallbacks for unsupported browsers, and overusing it, which can lead to a poor user experience.