javascript 在窗口关闭时触发函数
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12158190/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Fire a Function on window close
提问by sv_in
Possible Duplicate:
javascript detect browser close tab/close browser
I have a java script countdown timer on my page and i want to trigger an alert message if user tries to close the window or a tab.
我的页面上有一个 java 脚本倒数计时器，如果用户尝试关闭窗口或选项卡，我想触发警报消息。
回答by sv_in
https://developer.mozilla.org/en-US/docs/DOM/window.onbeforeunload
https://developer.mozilla.org/en-US/docs/DOM/window.onbeforeunload
Update: this answer was provided by Adnan in comment few mins before me :)
更新：这个答案是 Adnan 在我几分钟前的评论中提供的 :)
回答by RAKESH HOLKAR
Use this event
使用此事件
window.onbeforeunload = function() {
//your message goes here
}
By using jQuery
通过使用 jQuery
$(window).unbind("beforeunload");
$(window).bind("beforeunload", function (e) {
//do your work here
});
