useCallback

232909771-666048

hook


import Taro, { useState, useCallback, useRef, useDidHide } from '@tarojs/taro'

export function useBool(initStatus = false){

    const [ status, setStatus ] = useState(initStatus)
    
    const setTrue = useCallback(
        () => setStatus(true)
        [ setStatus ],
    )
    
    const setFalse = useCallback(
        () => setStatus(false),
        [ setStatus ],
    )
    
    // 报错
    const toggle = useCallback(
        value => setStatus( prev => value !== undefined ? !!value : !prev  )
        [ setStatus ],
    )

    // 正常 
    const toggle = value => setStatus( prev => value !== undefined ? !!value : !prev  )

    return [ status, setTrue, setFalse, toggle ]
    
}