Uncaught Error: Rendered fewer hooks than expected. This may be caused by an accidental early return

Uncaught Error: Rendered fewer hooks than expected. This may be caused by an accidental early return statement.

未捕获错误：渲染的钩子比预期的少。这可能是由意外的提前返回语句引起的。

这个错误就是说react预先要渲染的一些钩子函数hook没有执行就返回了。可能出现的错误代码如下

export default ()=>{if(xxx) {return xxx; // 一些hook还没执行就返回}useEffect(()=>{ xxx },[]);useMemo(()=>{ xxx }, [])return <div>xxx</div>
}

解决方法就是将返回语句移动到所有hook之后

export default ()=>{useEffect(()=>{ xxx },[]);useMemo(()=>{ xxx }, [])if(xxx) {return xxx;}return <div>xxx</div>
}

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Uncaught Error: Rendered fewer hooks than expected. This may be caused by an accidental early return

Uncaught Error: Rendered fewer hooks than expected. This may be caused by an accidental early return相关推荐

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