原文:解决react hook组件卸载数据处于加载中渲染组件状态Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions an

Can t perform a React state update on an unmounted component. This is a no op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffec ...

2020-04-21 15:29 0 6289 推荐指数:

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React报错:Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix,

今天在开发时报了以下错误,记录一下 我们不能在组件销毁后设置state,防止出现内存泄漏的情况 出现原因直接告诉你了,组件都被销毁了,还设置个锤子的state解决方案: 利用生命周期钩子函数:componentWillUnmount 将报错的地方移入此钩子里进行处理 ...

Tue Mar 12 19:26:00 CST 2019 0 16265
解决react报错:index.js:1 Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your

报错信息如下: 首先,这个报错的意思是说:在路由快速切换时,数据还没有拿回来,页面就已经销毁了,而当数据拿回来了去执行this.setState()时,找不到组件而报错。 清楚问题后,解决的办法有两个: 第一种:在生命周期UNSAFE_componentWillMount里面取消 ...

Sun Apr 26 19:18:00 CST 2020 0 2267
index.js:1 Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your

React开发,我们可能经常会遇到这个一个警告: 我们不能在组件销毁后设置state,防止出现内存泄漏的情况: 关于react中切换路由时报以上错误,实际的原因是因为在组件挂载(mounted)之后进行了异步操作,比如ajax请求或者设置了定时器等,而你在callback ...

Fri Jul 10 03:43:00 CST 2020 1 806
关于Warning: setState(...): Can only update a mounted or mounting component. This usually means you called setState() on an unmounted component.

关于react中切换路由时报以上错误,实际的原因是因为在组件挂载(mounted)之后进行了异步操作,比如ajax请求或者设置了定时器等,而你在callback中进行了setState操作。当你切换路由时,组件已经被卸载unmounted)了,此时异步操作callback还在执行 ...

Thu Dec 07 20:59:00 CST 2017 0 12727
 
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