在Javascript中查找复选框是否被聚焦 [英] In Javascript find if a checkbox is focused

问题描述

在Javascript中如何判断一个复选框是否有焦点？

In Javascript how can I tell if a checkbox has focus or not?

我认为会有一个名为isfocused的方法或属性。但显然不是。

I thought there would be a method or property called isfocused. But apparently not.

通过焦点我的意思是他们使用键盘选项卡，在这一点按空格将检查框。

By in focus I mean they've tabbed to it using the keyboard and at this point pressing space would check the box.

推荐答案

创建一个连接到onfocus事件的事件处理程序。当它被调用时，设置一个全局var来记住它的焦点。在清除变量的onblur事件上写另一个。

Create an event handler that is wired to the onfocus event. When it's called, set a global var to remember that it's got the focus. Write another one on the onblur event which clears the variable.

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