flipper-plugin/lib/utils/useLatestRef.js

Flipper Desktop plugin SDK and components

"use strict";
/**
 * 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
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.useLatestRef = void 0;
const react_1 = require("react");
/**
 * Creates a ref object that is always synced from the value passed in.
 */
function useLatestRef(latest) {
    const latestRef = (0, react_1.useRef)(latest);
    // TODO: sync eagerly (in render) or late? Introduce a `syncEarly` flag as second arg
    (0, react_1.useEffect)(() => {
        latestRef.current = latest;
    }, [latest]);
    return latestRef;
}
exports.useLatestRef = useLatestRef;
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