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jQuery focusin() 方法

❮ jQuery 事件方法

示例

当 <div> 元素或其内部任何元素获得焦点时,设置 <div> 元素的背景颜色

$("div").focusin(function(){
  $(this).css("background-color", "#FFFFCC");
});
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定义和用法

当元素(或其内部任何元素)获得焦点时,将触发 focusin 事件。

focusin() 方法附加一个函数,当元素或其内部任何元素发生焦点事件时运行该函数。

focus() 方法不同,focusin() 方法在任何子元素获得焦点时也会触发。

提示: 当通过鼠标点击或“Tab 键导航”选择元素时,该元素将获得焦点。

提示: 此方法通常与 focusout() 方法一起使用。


语法

$(选择器).focusin(函数)

参数 描述
function 必需。指定当 focusin 事件发生时要运行的函数。

❮ jQuery 事件方法

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