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DOM element size sensor which will callback when size changed.





DOM element size sensor which will callback when the element size changed.

DOM 元素尺寸监听器,当元素尺寸变化的时候,将会触发回调函数!

Build Status npm npm gzip


npm i --save size-sensor

Then import it.

import { bind, clear } from 'size-sensor';

or import it by script in HTML, then get sizeSensor on window.

<script src=""></script>


  • bind & unbind
import { bind, clear } from 'size-sensor';

// bind the event on element, will get the `unbind` function
const unbind1 = bind(document.querySelector('.container'), element => {
  // do what you want to to.

const unbind2 = bind(document.querySelector('.container'), element => {
  // do what you want to to.

// if you want to cancel bind event.
  • clear
import { bind, clear } from 'size-sensor';

 * // bind the resize event.
 * const unbind1 = bind(...);
 * const unbind2 = bind(...);
 * ...

// you can cancel all the event of element.


There is only 2 API:

  • bind(element, callback)

Bind the resize trigger function on element. The function will return unbind function.

  • clear(element)

Clear all the object and resize event on element.


The size sensor strategies include:

  • ResizeObserver: use resizeObserver to observe element's size.
  • object: use object document's resize event.

If ResizeObserver exists, use it, else use object as default.

Let me know

Online demo click here. Used By:


[email protected]hustcc.