jQuery：如何在选项卡/窗口获得焦点时告诉我 [英] jQuery: How can I tell when a tab/window gains focus

问题描述

每次用户点击标签页时，是否有可以注册该标记的事件，这意味着它们位于我页面的标签页上，单击另一个标签页，然后返回到我的标签页。

Is there an event that I can register for that fires each time the user clicks on a tab, meaning that they were on my page's tab, clicked on another tab, then came back to my tab.

编辑：
按标签，我的意思是浏览器标签，而不是jQueryUI标签。

By tabs, I mean browser tabs, not jQueryUI tabs.

推荐答案

Matijis在评论中提供了这个答案，但我想接受它，所以这里作为答案。

Matijis provided this answer in a comment, but I wanted to accept it so here it is as an answer.

$(window).on('focus', function() { // your code });

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