Created
June 22, 2021 10:53
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| const SlowComponent = React.memo(({ text, onClick }) => { | |
| const arr = [] | |
| for (var i = 1000000 - 1; i >= 0; i--) { | |
| arr.push(i) | |
| } | |
| return ( | |
| <div> | |
| <div>I'm slow {text}</div> | |
| <button onClick={onClick}/> | |
| </div> | |
| ) | |
| }) |
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