FocusEvent()
constructor returns a newly created
FocusEvent
object with an optional
EventTarget
. When the event has both a source and a destination, the
relatedTarget
value must be set to the other target.
var focusEvent = new FocusEvent(typeArg[, focusEventInit]);
FocusEvent()
constructor also inherits arguments from
UIEvent()
和来自
Event()
.
typeArg
DOMString
表示事件的名称。
focusEventInit
可选
FocusEventInit
字典,拥有以下字段:
"relatedTarget"
, optional and defaulting to
null
, is an
EventTarget
representing the secondary target of a
FocusEvent
.
FocusEventInit
字典还接受字段来自
UIEventInit
and
EventInit
字典。
| 规范 | 状态 | 注释 |
|---|---|---|
|
DOM (文档对象模型) 3 级事件规范
The definition of 'FocusEvent()' in that specification. |
过时 | 初始定义 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FocusEvent()
构造函数
|
Chrome Yes | Edge ≤18 | Firefox 24 | IE No | Opera Yes | Safari Yes | WebView Android Yes | Chrome Android Yes | Firefox Android 24 | Opera Android Yes | Safari iOS Yes | Samsung Internet Android Yes |
完整支持
不支持
实验。期望将来行为有所改变。
FocusEvent
interface it belongs to.
FocusEvent
FocusEvent
FocusEvent
relatedTarget