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使用redux时,state中数据更新组件不会触发componentreceiveprops,组件不重新渲染 #2237
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欢迎提交 Issue~ 如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏 如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。 Good luck and happy coding~ |
对于复杂数据,比如数组,你应该先把数组浅拷贝一下,再发布出去,不要直接修改原数组 |
Hello~ 您的问题楼上已经有了确切的回答,如果没有更多的问题这个 issue 将在 15 天后被自动关闭。 如果您在这 15 天中更新更多信息自动关闭的流程会自动取消,如有其他问题也可以发起新的 Issue。 Good luck and happy coding~ |
浅拷贝之后确实可以,能否请教一下大佬为何要做这一步操作,源数据是不可变数据吗 |
@TiamoJrZhang 是的,最好不要改变源数据 |
好的感谢 |
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使用redux时,state中数据更新组件不会触发componentreceiveprops,组件不重新渲染,具体情境下:
1.在使用官网redux demo时没有问题,但是此时redux state中的数据比较简单,为Int值,
2.在redux state中赋值复杂数据结构时,第一次state更新没有问题,第二次组件不会触发componentreceiveprops(),render函数不执行
具体代码如下:
麻烦大佬看一下
系统信息
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