39 lines
1.0 KiB
TypeScript
39 lines
1.0 KiB
TypeScript
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import { useEffect, useState } from "react";
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export default function useWindowSize() {
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const [windowSize, setWindowSize] = useState<{
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width: number | undefined;
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height: number | undefined;
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}>({
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width: undefined,
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height: undefined,
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});
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useEffect(() => {
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// Handler to call on window resize
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function handleResize() {
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// Set window width/height to state
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setWindowSize({
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width: window.innerWidth,
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height: window.innerHeight,
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});
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}
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// Add event listener
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window.addEventListener("resize", handleResize);
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// Call handler right away so state gets updated with initial window size
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handleResize();
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// Remove event listener on cleanup
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return () => window.removeEventListener("resize", handleResize);
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}, []); // Empty array ensures that effect is only run on mount
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return {
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windowSize,
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isMobile: typeof windowSize?.width === "number" && windowSize?.width < 768,
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isDesktop:
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typeof windowSize?.width === "number" && windowSize?.width >= 768,
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};
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}
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