@carbon/react/lib/internal/useSavedCallback.js

React components for the Carbon Design System

/**
 * Copyright IBM Corp. 2016, 2023
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var React = require('react');

/**
 * Returns a stable callback reference that always points to the latest version
 * of a callback. This is useful when you want to avoid including the callback
 * in dependency arrays while still ensuring the latest callback implementation
 * is used.
 *
 * @param callback - The callback to track.
 */
const useSavedCallback = callback => {
  const savedCallback = React.useRef(callback);
  React.useEffect(() => {
    savedCallback.current = callback;
  }, [callback]);
  return React.useCallback((...args) => savedCallback.current ? savedCallback.current(...args) : undefined, []);
};

exports.useSavedCallback = useSavedCallback;