title: What's the drawback of `let count = useRef(0).current`
body: <h1>Example Code:</h1>
  <p>(Pretend we are inside component function)</p>
  <pre class="lang-js prettyprint-override"><code>let count = useRef(0).current
  
  useEffect(()=&gt;{
    count++
    console.log(count)
  }, [count])
  </code></pre>
  <h1>Question:</h1>
  <ol>
  <li>What will happen if I run this code</li>
  </ol>
  <p>(I am afraid that the endless loop execution will blow up my m1 chip macbookair, so I didn't run ^_^).</p>
  <ol start="2">
  <li>Should I awalys <code>some_ref_object.curent = some_value</code> to change the value?</li>
  </ol>