在浏览器选项卡上调用JS函数关闭 [英] Calling JS functions on browser tab close

问题描述

当用户关闭浏览器选项卡时，我需要调用JS函数。问题是我希望只有当用户关闭浏览器时才会发生这种情况。无需进行页面刷新，链接导航，表单提交和后退按钮按下。到目前为止我尝试了下面的jquery代码。

I need to call a JS function when user closing the browser tab. the problem is i want to happen this only when user closing the browser. no need to happen for page refresh, link navigation,form submit and back button press. i tried the below jquery code so far.

$(window).bind(
 "beforeunload", 
 function() { 
   alert("don't close me");
   return false;
 }
)
 $('form').submit(function() {
   jQuery(window).unbind("beforeunload");
 });

无效。任何人都可以为此回答。有什么其他js工具比jquery可用吗？。

its not working. can anyone answer for this. is there any other js tools than jquery available for this?.

如果我调用我的函数beforeunload事件，上面的消息即将到来。我不想显示此消息，我的功能必须工作。我尝试给e.preventDefault。但是当我使用它时，它也没有调用我的功能。任何人都可以提出建议。
谢谢。

And if i call my function "beforeunload" event, above message is coming. i don't want to show this message and my function has to be worked. i tried by giving e.preventDefault. but it's not calling my function also when i used that. can anybody suggest something. Thanks.

推荐答案

我同意这是一个不好的做法的评论，但我无法抗拒打电话试图回答问题。

I agree with the comments that this is a bad practice, but I can't resist the call to attempt answering the question.

我能想到的唯一方法是使用 onbeforeunload ，你已经在做什么了。但是，当有人通过其他方式离开页面时，您需要一种方法来禁用该警报。

The only way I can think of to accomplish this is to use onbeforeunload, which you're already doing. But you need a way of disabling that alert when someone navigates away from the page by some other means.

var show_close_alert = true;

$("a").bind("mouseup", function() {
    show_close_alert = false;
});

$("form").bind("submit", function() {
    show_close_alert = false;
});

$(window).bind("beforeunload", function() {
    if (show_close_alert) {
        return "Killing me won't bring her back...";
    }
});

这不是万无一失的，因为有很多方法可以在不看警报的情况下关闭浏览器（比如点击一下）链接，立即点击停止，然后关闭浏览器），但它可能会尽可能接近。

It's not foolproof, as in there are ways to close the browser without seeing the alert (like clicking a link, hitting Stop immediately, and then closing the browser), but it may be as close as you can get.

这是一个小提琴。

但请...不要这样做。

But please... don't do this.

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