Package Exports

use-scroll-direction
use-scroll-direction/dist/index.js
use-scroll-direction/dist/use-scroll-direction.esm.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (use-scroll-direction) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

use-scroll-direction

A simple, performant, and cross-browser hook for handling scroll in your next react app.

Installation

npm i use-scroll-direction

Usage

The hook returns the object with the actual scroll direction which could be one of three states: 'NONE', 'DOWN', 'UP', and useful booleans.

Use on window object

import {useScrollDirection} from "use-scroll-direction";

export const WindowExample = () => {
    const {
        scrollDirection,
        isScrolling,
        isScrollingUp,
        isScrollingDown
    } = useScrollDirection();

    useEffect(() => {
        console.log(scrollDirection)
    }, [scrollDirection]);

    return (
      <div>{...}</div>
    )
};

Use on the specific element

import {useScrollDirection} from "use-scroll-direction";

export const ComponentRefExample = () => {
    const elementRef = useRef(null);
    const {scrollDirection} = useScrollDirection({ref: elementRef});

    useEffect(() => {
        console.log(scrollDirection)
    }, [scrollDirection]);

    return (
        //The content needs to overflow a container
        <div ref={elementRef} style={{height: '100vh', overflowY: 'scroll'}} >
            <div>{...}</div>
        </div>
    )
};

Available options

Name	Type	Description
`wait`	`?number`	Time in ms for throttling of scroll handler (default: 50)
`timeToReset`	`?number`	Time in ms after last scroll event to reset the state (default: 250)
`ref`	`?string`	When passed, the listener will be attached to element instead of window object