Observe the rect of a DOM element.

Installation

``
npm install @reach/observe-rect


or


yarn add @reach/observe-rect
`

Usage

`js
import observeRect from "@reach/observe-rect";

let node = document.getElementById("some-node");

let rectObserver = observeRect(node, rect => {
console.log("left", rect.left);
console.log("top", rect.top);
console.log("height", rect.height);
console.log("width", rect.width);
});

// start observing
rectObserver.observe();

// stop observing
rectObserver.unobserve();
``

About

A lot of things can change the position or size of an element, like scrolling, content reflows and user input. This utility observes and notifies you when your element's rect changes.

Legal

MIT License
Copyright (c) 2018-present, Ryan Florence