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sloz

v0.0.1

Published

Lazy load images in viewport first and proceed others after

Downloads

3

Readme

sloz

Lazy load images in viewport first and proceed others after.

Installation

yarn add sloz
# or
npm i -S sloz

Usage

For images you want to be lazy-loaded specify a data-src attribute with original image as its value.

  • Images in viewport are loaded first.
  • Images not in viewport are loaded right after.
  • If viewport images loading is taking too long (e.g. bad network, large images), other images are proceeded without waiting.

This way we can improve UX by:

  1. Minimizing loading times (HTML content shows immediately).
  2. Improve UX (Images important for user are loaded in the first place).

Example

<!-- ... -->
<body>
  <img src="" alt="image" data-src="https://images.unsplash.com/photo-1465146344425-f00d5f5c8f07?dpr=1&auto=compress,format&fit=crop&w=1199&h=794&q=80&cs=tinysrgb&crop=&bg=">
</body>
<!-- ... -->
import sloz from 'sloz';

sloz();

Configuration


sloz('img[data-src]', // images selector
  {
    wait: 3000, // viewport images waiting timeout after which all images are force-loaded
  }
);

License

MIT