How should I implement lazy loading for my images in react

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How should I implement lazy loading for my images in react?

I have several images in my React application, so I want to implement lazy loading. When images enter the viewport, they are loaded, and the load will be shorter since the initial photos won't be fetched right away. What's the best approach for implementing lazy loading on React images?

Oct 21 in Web Development by Nidhi
• 1,940 points
124 views

1 answer to this question.

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Imagine you are browsing a website with lots of images. Instead of all the images loading at once , which can make the page feel slow, lazy loading means that the images only load as you scroll down the page.

  • In React , we can implement lazy loading for images using built-in lazy and Suspense components.
  1. Import Necessary Components:
import React , {lazy , Suspense } from 'react';
  1. Create a Lazy-Loaded Component:
const LazyImage = lazy(() => import('./MyImage'));
  1. Wrap with Suspense :
<Suspense fallback = {<div>Loading...</div>}>
<LazyImage src= "path/to/image.jpg" alt="Image"/>
</Suspense>

Complete Example :

import React , {lazy , Suspense } from 'react';

const LazyImage = lazy(() => import('./MyImage'));

function My(){
return (
<div>
<Suspense fallback = {<div>Loading...</div>}>
<LazyImage src= "path/to/image.jpg" alt="Image"/>
</Suspense>
</div>
);
}
  • The lazy function dynamically imports the MyImage , ensuring it’s only loaded when needed.
  • The Suspense component provides a fallback UI while the image is loading.
  • Once the image is loaded, the LazyImage component will render in place of the fallback.
answered Oct 21 by Navya
• 380 points

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