问题
Unload Event can be triggered both by Refresh action and Window Close action. is there a way to distinguish which action that actually trigger it? In my situation, i want to ignore the Refresh action. Could you please give me some insight what the work around is?
I noticed that there is already this sort of question asked, but it seems to they are all unresolved. Therefore i came up this question again and hopefully some intelligent guy can solve this problem.
回答1:
I do not believe the browser can distinguish between the two events.
Both are an unload event, and both will call any unload function that you have made.
来源：https://stackoverflow.com/questions/3115773/how-to-distinguish-unload-event-triggered-by-refresh-or-window-close