Chrome浏览器 - 浏览器退出时检测 [英] Chrome - Detect When Browser Exits

问题描述

我想知道是否有可能检测用户是否退出Chrome浏览器？

I am wondering if it is possible to detect whether the user exits the Chrome browser?

编辑 - 对不起，我不是很清楚，所以我会解释我的情况。我在浏览器的本地存储中存储了一些变量。当用户关闭浏览器时，我想删除这些变量中的一部分。

EDIT - Sorry, I wasn't being very clear so I'll explain my situation. I am storing some variables in the browser's localstorage. When the user closes the browser, I want to delete some of these variables.

推荐答案

在卸载窗口之前执行一些JavaScript

您可以钩住窗口的 OnBeforeUnload 事件

Executing some JavaScript before the window is unloaded

You can hook the OnBeforeUnload event of the window

<script type="text/javascript">
    $(window).bind('beforeunload', function() {
        if (iWantTo) {
            return "Don't leave me!";
        }
    }); 
</script>

使用心跳知道用户何时离开

或者创建一个JavaScript定时器，每隔XX秒钟对您的服务器进行一次ping。当ping停止时，您可以假定用户已关闭浏览器或导航。

Using a heartbeat to know when the user has left

Or create a JavaScript timer that pings your sever every XX seconds. When the pings stop, you can assume the user has closed the browser or navigated away.

http://ajaxpatterns.org/archive/Heartbeat.php

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