如何订阅localStorage，但不能在sessionStorage事件中订阅 [英] How to subscribe on localStorage but not on sessionStorage events

问题描述

据我所知：

  window.addEventListener（'storage'，function（event）{
 ... 
}，false）; 
  

是在localStorage和sessionStorage事件上进行订阅。
只能订阅localStorage事件？

谢谢。

解决方案>

我不认为你可以，因为你说存储是在任何存储项目更改时触发窗口。您只需在收到事件时检查事件的 storageArea 属性，并忽略会话存储中的那些属性。例如：

  window.addEventListener（'storage'，function（event）{
 if（event.storageArea == = localStorage）{
 //本地存储
} 
}，false）; 
  

As far as I understand:

window.addEventListener('storage', function(event){
       ...
}, false);

is subscription on both localStorage and sessionStorage events. Can I subscribe on localStorage events only?

Thanks.

解决方案

I don't think you can, as you say storage is fired on the window when any storage item changes. You just have to check the storageArea property of the event when you receive it, and ignore the ones from session storage. E.g.:

window.addEventListener('storage', function(event){
    if (event.storageArea === localStorage) {
        // It's local storage
    }
}, false);

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