Function IsFetching

packages/react-query/src/__tests__/useIsFetching.test.tsx:22–26

()

    const key = queryKey()

    function IsFetching() {
      const isFetching = useIsFetching()

      return <div>isFetching: {isFetching}</div>
    }

    function Query() {
      const [ready, setReady] = React.useState(false)