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react的hook中监听props修改state为什么是副作用?

react的hook,我们经常这样写

const [count, setCount] = useState(0)
useEffect(()=>{
  setCount(count);
},[props.count])

这中操作为什么算副作用


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by (71.8m points)
setCount(count)

=>

setCount(props.count)

?


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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