@openshift-console/dynamic-plugin-sdk/lib/app/components/safety-first.js

Provides core APIs, types and utilities used by dynamic plugins at runtime.

import * as React from 'react';
/**
 * @deprecated - This hook is not related to console functionality.
 * Hook that ensures a safe asynchronnous setting of the React state in case a given component could be unmounted.
 * (https://github.com/facebook/react/issues/14113)
 * @param initialState initial state value
 * @returns An array with a pair of state value and it's set function.
 */
export const useSafetyFirst = (initialState) => {
    const mounted = React.useRef(true);
    React.useEffect(() => () => (mounted.current = false), []);
    const [value, setValue] = React.useState(initialState);
    const setValueSafe = React.useCallback((newValue) => {
        if (mounted.current) {
            setValue(newValue);
        }
    }, []);
    return [value, setValueSafe];
};