JavaScript method to detect whether the pop-up window has been closed_javascript tips

The example in this article describes how to use JavaScript to detect whether the pop-up window has been closed. Share it with everyone for your reference. The specific implementation method is as follows:

Copy code The code is as follows:

var win = window.open('foo.html','windowName'," width=200,height=200,scrollbars=no");
var timer = setInterval(function() {
If(win.closed) {
                                                                                     ,,,,,,, alert('closed');
}  
}, 1000);

I hope this article will be helpful to everyone’s JavaScript programming design.