@tamagui/react-native-web-lite/src/vendor/react-native/Utilities/useMergeRefs.js

React Native for Web

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * @format
 */

import { useCallback } from 'react'

/**
 * Constructs a new ref that forwards new values to each of the given refs. The
 * given refs will always be invoked in the order that they are supplied.
 *
 * WARNING: A known problem of merging refs using this approach is that if any
 * of the given refs change, the returned callback ref will also be changed. If
 * the returned callback ref is supplied as a `ref` to a React element, this may
 * lead to problems with the given refs being invoked more times than desired.
 */
function useMergeRefs(...refs) {
  return useCallback(
    (current) => {
      for (const ref of refs) {
        if (ref != null) {
          if (typeof ref === 'function') {
            ref(current)
          } else {
            ref.current = current
          }
        }
      }
    },
    [...refs] // eslint-disable-line react-hooks/exhaustive-deps
  )
}

export { useMergeRefs }
export default useMergeRefs