jonataswalker/watch-element-resize.js

A (yet another) cross-browser, event-based, element resize watcher

watch-element-resize.js

A (yet another) cross-browser, event-based, element resize watcher. This is kind of a (improved) fork of sdecima/javascript-detect-element-resize.

Demo

See here a demo.

How to use it?

CDN Hosted - jsDelivr

Load Javascript:

<script src="//cdn.jsdelivr.net/watch-element-resize.js/latest/watch-element-resize.min.js"></script>

Self hosted

Download latest release.

Instantiate with some options and listen to changes

var watchResize = new WatchElementResize(['field1', 'field2']);
watchResize.on('resize', function(evt){
  console.info(evt);
  
  // the DOM element
  var resized_element = evt.element.target;
  
  // the element offset (width, height, top, left) 
  var offset = evt.element.offset;
  
  // the window dimensions -- just in case you need
  var window_size = evt.window;
});

API

Constructor

new WatchElementResize(target)

target can be:

{String|Array<String>|Element|Array<Element>} String or array of string, DOM node or array of nodes.

Methods

watchResize.reAddListener()

watchResize.removeListener()

Events

watchResize.on('resize', function(evt){

});