How to know user reload page by javascript

Question

I stored a variable in sessionStorage. When I reload the webpage, sessionStorage don't set this variable to null. I must close the window and open a new one to do this. So, How can I know user reload page by javascript, I need sessionStorage set to null when I reload page

One thing I can think of is to use localStorage. Set some value to it initially.. if the user reloads the page you can check this value and open a new tab. — Rajshekar Reddy
– Rajshekar Reddy, Commented Oct 22, 2016 at 1:56
you want to know how if the users reloads by javascript, but that is a very odd use case, typically users do not use javascript to reload the page, but use the reload button or something similar — adamM
– adamM, Commented Oct 22, 2016 at 1:57

user2182349 · Accepted Answer · 2016-10-22 01:59:07Z

2

As suggested by @sideroxylon

window.addEventListener("beforeunload",function(e){
    sessionStorage.setItem("var",null);
});

This will fire whether the user reloads the page or navigates away.

answered Oct 22, 2016 at 1:59

user2182349

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1 Comment

Thế Hải Nguyễn Over a year ago

Tks u very much :D

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