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Brown Markup Library

useWindowDimensions

Useful for when you need to dynamically set elements based on the window size.


TypeScript & JavaScript

import { useState, useEffect } from "react";

export default function useWindowDimensions() { const [windowDimensions, setWindowDimensions] = useState({ width: 0, height: 0, }); useEffect(() => { function getWindowDimensions() { const { innerWidth: width, innerHeight: height } = window; return { width, height, }; } setWindowDimensions(getWindowDimensions()); function handleResize() { setWindowDimensions(getWindowDimensions()); } window.addEventListener("resize", handleResize); return () => window.removeEventListener("resize", handleResize); }, []); return windowDimensions; }