// Copyright 2017-2020 @polkadot/react-hooks authors & contributors // This software may be modified and distributed under the terms // of the Apache-2.0 license. See the LICENSE file for details. import { useCallback, useState } from 'react'; // Simple wrapper for a true/false toggle export default function useToggle (defaultValue = false): [boolean, () => void, (value: boolean) => void] { const [isActive, setActive] = useState(defaultValue); const toggleActive = useCallback( (): void => setActive((isActive: boolean) => !isActive), [] ); return [isActive, toggleActive, setActive]; }