define(["require", "exports", "react"], function (require, exports, React) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.useUnmount = void 0;
    /**
     * Hook which synchronously executes a callback when the component is about to unmount.
     *
     * @param callback - Function to call during unmount.
     */
    var useUnmount = function (callback) {
        var unmountRef = React.useRef(callback);
        unmountRef.current = callback;
        React.useEffect(function () { return function () {
            var _a;
            (_a = unmountRef.current) === null || _a === void 0 ? void 0 : _a.call(unmountRef);
        }; }, []);
    };
    exports.useUnmount = useUnmount;
});
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