@coreui/react-pro/dist/esm/hooks/useIsVisible.js

UI Components Library for React.js

import { useState, useEffect } from 'react';

var useIsVisible = function (ref) {
    var _a = useState(false), isIntersecting = _a[0], setIntersecting = _a[1];
    useEffect(function () {
        var observer = new IntersectionObserver(function (_a) {
            var entry = _a[0];
            return setIntersecting(entry.isIntersecting);
        });
        if (ref.current) {
            observer.observe(ref.current);
        }
        return function () { return observer.disconnect(); };
    }, []);
    return isIntersecting;
};

export { useIsVisible };
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