FocusEvent
接口表示和焦点相关的事件比如 focus
, blur
, focusin
, 和 focusout
。
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构造器
FocusEvent()
- 使用给定的参数创建
FocusEvent
事件。
属性
此接口从它的父级继承了属性 UIEvent
, 间接来自于 Event
.
FocusEvent.relatedTarget
只读EventTarget
这个代表此次事件的次要目标. 在一些案例中,例如切换浏览器tab标签时, 为了安全的原因,这个属性可能会被设置为null
。
方法
规范
规范 | 状态 | 备注 |
---|---|---|
UI Events FocusEvent |
Working Draft | |
Document Object Model (DOM) Level 3 Events Specification FocusEvent |
Obsolete | 初始定义 |
浏览器兼容性
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参见
Event
基接口