检测窗口关闭 [英] Detect window closed

问题描述

我正在创建一个聊天客户端，该客户端使用数据库来检查会话的状态(0等待，1运行，2关闭).

I'm creating a chat client which uses a database to check the status of a session 0-waiting, 1-running, 2-closed.

我有一个关闭按钮，该按钮会将状态更改为2，但我想知道如何仅按x来检测浏览器是否关闭?

I have a close button which will change the status to 2 but I was wondering, how do I detect if the browser is closed just by pressing x?

主要原因是当一个参与者关闭浏览器时，我不希望会话显示为正在运行.

The main reason for this is I don't want the session showing up as running when one of the participants has closed their browser.

推荐答案

使用unload和onbeforeunload事件:

window.onunload = window.onbeforeunload = function (){...};

最好注册两个事件，以确保将触发回调.

It's better to register to both of the events to be sure the callback will fire.

这篇关于检测窗口关闭的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！