Detect Close windows event by jQuery

You can use :

$(window).unload(function() {
    //do something
});

Unload() is deprecated in jQuery version 1.8, so if you use jQuery > 1.8 you can use even beforeunload instead.

The beforeunload event fires whenever the user leaves your page for any reason.

$(window).on("beforeunload", function() { 
    return confirm("Do you really want to close?"); 
});

Source Browser window close event

The unload() method was deprecated in jQuery version 1.8.

so if you are using versions older than 1.8

then use -

$(window).unload(function(){
alert("Goodbye!");
});

and if you are using 1.8 and higher

then use -

window.onbeforeunload = function() {
    return "Bye now!";
};

hope this will work :-)

There is no specific event for capturing browser close event.

You can only capture on unload of the current page.

By this method, it will be effected while refreshing / navigating the current page.

Even calculating of X Y postion of the mouse event doesn't give you good result.

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