Created
February 28, 2020 20:40
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| const useWindowResize = invokeImmediately => { | |
| const [immediatelyInvoked, setImmediatelyInvoked] = useState(false); | |
| const [rect, setRect] = useState({ | |
| innerWidth: undefined, | |
| innerHeight: undefined | |
| }); | |
| const set = useCallback(() => { | |
| if (!window) return; | |
| const { innerWidth, innerHeight } = window; | |
| setRect({ innerWidth, innerHeight }); | |
| }, []); | |
| useEffect(() => { | |
| window.addEventListener("resize", set); | |
| return () => { | |
| window.removeEventListener("resize", set); | |
| }; | |
| }, [set]); | |
| if (invokeImmediately && !immediatelyInvoked) { | |
| set(); | |
| setImmediatelyInvoked(true); | |
| } | |
| return rect; | |
| }; |
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