/** * 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. * * */ import * as React from 'react'; var UNINITIALIZED = typeof Symbol === 'function' && typeof Symbol() === 'symbol' ? Symbol() : Object.freeze({}); export default function useStable(getInitialValue) { var ref = React.useRef(UNINITIALIZED); if (ref.current === UNINITIALIZED) { ref.current = getInitialValue(); } // $FlowFixMe (#64650789) Trouble refining types where `Symbol` is concerned. return ref.current; }