A pure JavaScript image zooming plugin; as seen on Medium.com.

Has no jQuery or Bootstrap dependencies.

This is a port of the original version by @nishanth: https://github.com/nishanths/zoom.js.

1. Link the zoom.js and zoom.css files to your site or application.

<link href="css/zoom.css" rel="stylesheet">
<script src="dist/zoom.js"></script>

2. Add a data-action="zoom" attribute to the images you want to make zoomable. For example:

<img src="img/blog_post_featured.png" data-action="zoom">

1. Install the package: npm i @youngluo/zoom.js
2. Link the zoom.css file to your application.

 <link href="css/zoom.css" rel="stylesheet">

1. Import the package and call zoom.setup(elem) for each image you want to make zoomable.

import zoom from "@youngluo/zoom.js";

var imgElem = new Image();
imgElem.src = "tree.png";
document.body.appendChild(imgElem);

zoom.setup(imgElem);

https://nishanths.github.io/zoom.js

It has the same behavior and all the features from the original implementation. But:

* In addition to the dist/ scripts, it's available as an npm module.
* Browser compatibility may be lower. Uses the transitionend event without
  vendor prefixes, so IE 10 or higher.