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rscroll-position

v1.0.9

Published

react-scroll-position returns the browser viewport X and Y scroll position. It is highly optimized ๐Ÿš€ using the special techniques to avoid unnecessary rerenders!

Downloads

7

Readme

rscroll-position

rscroll-position is a react component that returns the browser's x and y viewport position. It is highly optimized :rocket: using the special techniques to avoid unnecessary rerenders!

NPM contributions welcome

Install

npm install --save rscroll-position

Usage

| Prop | Description | | :--- |:--- | | element | reference to DOM element/node | | delay | The delay (to throttle events) in ms. |
| useWindow | Use window.scroll if true otherwise document.body.getBoundingClientRect() to detect scroll position. | | deps | Dependency array |

useScrollPosition()

import { useState, useRef } from 'react';
import { useScrollPosition } from 'rscroll-position';

function App(){
  
  const [ trackPosition, setTrackPosition ] = useScrollPosition (false);
  
  // refference to DOM element
  const element = useRef();
  
  useScrollPosition(({previous, current})=> {
    console.log({previous, current})
  },
    element,  // element
    true,     // useWindow
    700,      // delay ms
    [trackPosition]        // deps
  );
  
  return (
    <div ref={element}>
      <button 
        onClick={() => setTrackPosition(prev => !prev)}>
        Toggle
      </button>
    </div>
  )
}

License

MIT ยฉ Chitova263