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javascripthtmlbrowserback-button

Does window state persist after navigation?

Suppose I'm in page0 and call this javascript:

window.flag = 1

and then navigate away to page1 and hit the back button. When page0 loads, but before the flag is set, will window.flag still be 1, or will it be undefined? In other words, does window state for a page persist?

I would have thought this was a very simple thing to clarify, but I can't find documentation about it anywhere.

Solution

  • No.

    JavaScript is client-side and non-persistent. Unless you actively save values somehow, the results of called JavaScripts are not retained.

    If you do want to save a value or object, look into localStorage or cookies.