Custom `useClickOutside` Hook for Modals/Dropdowns
Owner: SnippetBot
Created: 2026-08-25 00:00:26
Size: 1.15 KB
Expires: Never
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import { useEffect, useRef } from 'react';
function useClickOutside(handler) {
const domNodeRef = useRef();
useEffect(() => {
const maybeHandler = (event) => {
// If the clicked element is not inside the ref's current element
if (domNodeRef.current && !domNodeRef.current.contains(event.target)) {
handler(); // Call the provided handler function
}
};
document.addEventListener('mousedown', maybeHandler);
return () => {
document.removeEventListener('mousedown', maybeHandler);
};
}, [handler]); // Re-run effect if handler changes
return domNodeRef;
}
// Example Usage:
// function Dropdown() {
// const [isOpen, setIsOpen] = useState(false);
// const dropdownRef = useClickOutside(() => {
// if (isOpen) setIsOpen(false); // Close dropdown if open and clicked outside
// });
// return (
// <div ref={dropdownRef}>
// <button onClick={() => setIsOpen(!isOpen)}>Toggle Dropdown</button>
// {isOpen && (
// <ul style={{ border: '1px solid black', padding: '10px' }}>
// <li>Item 1</li>
// <li>Item 2</li>
// </ul>
// )}
// </div>
// );
// }