reactjs - react typescript 和 useCallback

Question

我正在尝试使用 Typescript 和 useCallback，但出现此错误
Expected 0 arguments, but got 1
这是我的代码

const searchFriends = useCallback(() => (filterValue: string): void => {
    if (dataState.length <= INITIAL_FRIENDS_API_REQUEST) fetchAllFriends()
    const filterValueInsensitive = filterValue.toLowerCase()
    const filtered = dataState.filter((friend: Friends) => {
      return friend.displayName?.toLowerCase().includes(filterValueInsensitive)
    }) 
    setFriendsDisplayState(filtered)
  }, [dataState,fetchAllFriends]) 

  const handleChangeSearchInput = (
    e: React.ChangeEvent<HTMLInputElement>
  ): void => searchFriends(e.currentTarget.value) // ERROR here "Expected 0 arguments, but got 1"

知道我该如何解决吗？

Answer 1

您正在使用 useCallback语法如 useMemo's .它不需要柯里化(Currying)功能。正确的写法就像

const searchFriends = useCallback((filterValue: string): void => {
    if (dataState.length <= INITIAL_FRIENDS_API_REQUEST) fetchAllFriends()
    const filterValueInsensitive = filterValue.toLowerCase()
    const filtered = dataState.filter((friend: Friends) => {
      return friend.displayName?.toLowerCase().includes(filterValueInsensitive)
    }) 
    setFriendsDisplayState(filtered)
  }, [dataState,fetchAllFriends])