如何订阅localStorage但不订阅sessionStorage事件

Question

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.

Answer 1

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. Eg:

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