yaodebian / DomResizeListener

A dom resize listener base on javascript.

DomResizeListener

A dom resize listener base on javascript.

Installation

First, install Node.js. Then:

npm i dom-resize-listener

Usage

first, import the listener:

import  DomResizeListener from 'dom-resize-listener'

second, initialize the instance:

var domResizeListener = new DomResizeListener()

then, you can use it to listen a dom's size:

// target element for listening
var box = document.getElementById('box')

// excute when the size change
function callback() {
  console.log('my size has changed')
}

// listen
domResizeListener.addListener(box, callback)

you can also excute listening when initilize the instance:

// target element for listening
var box = document.getElementById('box')

// excute when the size change
function callback() {
  console.log('my size has changed')
}

// listen
var domResizeListener = new DomResizeListener(box, callback)

API

addListener: Func(dom, callback)

By this method, you can listen a dom's size and excute callback function when the size change. No matter how many elements are listened, only one listener is needed because we set an Array internal to store elements.

remove: Func(flag) (flag can be a dom or a callback which is used to listen)

remove the dom's listener.

clear: Func()

remove all listeners.

License

MIT