Javascript browser window close event (no prompt box is displayed)

There are many browser window close events. Here we will introduce several common browser window close events. For example, if you close a window, a prompt box is displayed, or the window. onbeforeunload and window. onunload events are displayed before closing the window.

Browser Close event

The Code is as follows:	Copy code
<Script type = "text/javascript"> Window. onbeforeunload = onbeforeunload_handler; Window. onunload = onunload_handler; Function onbeforeunload_handler (){ Var warning = "are you sure you want to exit? "; Return warning; // you can change it to alert or another specific operation. } Function onunload_handler (){ Var warning = "thank you for coming "; Alert (warning); // close and run } </Script>

Close the browser (no prompt box is displayed

The Code is as follows:	Copy code
<Script language = "javaScript"> Function closeWindow () { Window. opener = null; Window. open ('', '_ self ',''); Window. close (); } </Script> <Input type = 'button 'value = 'close window' onClick = "closeWindow ()">

Iframe Close Window

The Code is as follows:	Copy code
<Script language = "javaScript"> Function closeWindow () { Window. opener = null; Window. open ('', '_ top ',''); Window. parent. close (); } </Script>