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How to confirm from user before closing the browser window i.e Are you sure you want to close the current window using Javascript? Option to Close browser window : Ctrl + W, ALT + F4, Clicking on X Mark on window.
Updated 15-Apr-21 1:05am
Sandeep Mewara 14-Jul-10 1:47am
You don't need to post full question in the title. It should be short and simple.

1 solution

Here is your answer

window.onbeforeunload = function(){
  return "Are you sure?";

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