Laca-City/frontend/node_modules/use-callback-ref/dist/es2015/useRef.js

import { useState } from 'react';
/**
 * creates a MutableRef with ref change callback
 * @param initialValue - initial ref value
 * @param {Function} callback - a callback to run when value changes
 *
 * @example
 * const ref = useCallbackRef(0, (newValue, oldValue) => console.log(oldValue, '->', newValue);
 * ref.current = 1;
 * // prints 0 -> 1
 *
 * @see https://reactjs.org/docs/hooks-reference.html#useref
 * @see https://github.com/theKashey/use-callback-ref#usecallbackref---to-replace-reactuseref
 * @returns {MutableRefObject}
 */
export function useCallbackRef(initialValue, callback) {
    var ref = useState(function () { return ({
        // value
        value: initialValue,
        // last callback
        callback: callback,
        // "memoized" public interface
        facade: {
            get current() {
                return ref.value;
            },
            set current(value) {
                var last = ref.value;
                if (last !== value) {
                    ref.value = value;
                    ref.callback(value, last);
                }
            },
        },
    }); })[0];
    // update callback
    ref.callback = callback;
    return ref.facade;
}