frontend-admin / Daocheng-Yading

"use client";
import { useRef } from 'react';

/**
 * Creates a constant value over the lifecycle of a component.
 *
 * Even if `useMemo` is provided an empty array as its final argument, it doesn't offer
 * a guarantee that it won't re-run for performance reasons later on. By using `useConstant`
 * you can ensure that initialisers don't execute twice or more.
 */
function useConstant(init) {
    const ref = useRef(null);
    if (ref.current === null) {
        ref.current = init();
    }
    return ref.current;
}

export { useConstant };
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