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react-progressive-image

v0.6.0

Published

Progressive image loading for React

Downloads

58,659

Readme

React Progressive Image

react-progressive-image React component for progressive image loading

Install

$ yarn add react-progressive-image

The UMD build is also available on unpkg:

<script src="https://unpkg.com/[email protected]/umd/react-progressive-image.min.js"></script>

If you use the UMD build you can find the library on window.ReactProgressiveImage.

Examples

Simple

<ProgressiveImage src="large-image.jpg" placeholder="tiny-image.jpg">
  {src => <img src={src} alt="an image" />}
</ProgressiveImage>

With Delay

<ProgressiveImage
  delay={3000}
  src="large-image.jpg"
  placeholder="tiny-image.jpg"
>
  {src => <img src={src} alt="an image" />}
</ProgressiveImage>

With loading argment

<ProgressiveImage src="large-image.jpg" placeholder="tiny-image.jpg">
  {(src, loading) => (
    <img style={{ opacity: loading ? 0.5 : 1 }} src={src} alt="an image" />
  )}
</ProgressiveImage>

With srcSet

<ProgressiveImage
  src="medium.jpg"
  srcSetData={{
    srcSet: 'small.jpg 320w, medium.jpg 700w, large.jpg 2000w',
    sizes: '(max-width: 2000px) 100vw, 2000px'
  }}
  placeholder="tiny-image.jpg"
>
  {(src, _loading, srcSetData) => (
    <img
      src={src}
      srcSet={srcSetData.srcSet}
      sizes={srcSetData.sizes}
      alt="an image"
    />
  )}
</ProgressiveImage>

Props

NameTypeRequiredDescription
childrenfunctiontruereturns src, loading, and srcSetData
delaynumberfalsetime in milliseconds before src image is loaded
onErrorfunctionfalsereturns error event
placeholderstringtruethe src of the placeholder image
srcstringtruethe src of the main image
srcSetData{srcSet: "string", sizes: "string" }falsesrcset and sizes to be applied to the image