Answers for "how we use usefef in map function"

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how we use usefef in map function

const Component = () => 
{

  // In `items`, I would like to get an array of DOM element
  let items = useRef(null);

  return <ul>
    {['left', 'right'].map((el, i) =>
      <li key={i} ref={items} children={el} />
    )}
  </ul>
}

Posted by: Guest on July-30-2021

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