useView

function App () { const ref = React.useRef() const view = useView(ref) return ( <div ref={ref}> {view? "🥱": "😴"} </div> ) }

function App () {
  const ref = React.useRef()
  const view = useView(ref)
  return (
    <div ref={ref}>
      {view? "🥱": "😴"}
    </div>
  )
}

🥱