@rjsf/utils/lib/useDeepCompareMemo.js

Utility functions for @rjsf/core

'use client';
import { useRef } from 'react';
import isEqual from 'lodash-es/isEqual.js';
/** Hook that stores and returns a `T` value. If `newValue` is the same as the stored one, then the stored one is
 * returned to avoid having a component rerender due it being a different object. Otherwise, the `newValue` is stored
 * and returned.
 *
 * @param newValue - The potential new `T` value
 * @returns - The latest stored `T` value
 */
export default function useDeepCompareMemo(newValue) {
    const valueRef = useRef(newValue);
    if (!isEqual(newValue, valueRef.current)) {
        valueRef.current = newValue;
    }
    return valueRef.current;
}
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