我們的志工尚未將本文翻譯為 正體中文 (繁體) 版本。加入我們,幫忙翻譯!
您也可以閱讀本文的 English (US) 版本。

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The FocusEvent interface represents focus-related events like focus, blur, focusin, or focusout.

Constructor

FocusEvent()
Creates a FocusEvent event with the given parameters.

Properties

Inherits properties from its parent UIEvent, and indirectly from Event.

FocusEvent.relatedTarget Read only
Is an EventTarget representing a secondary target for this event. As in some cases (like when tabbing in or out a page), this property may be set to null for security reasons.

Methods

No specific method; inherits methods from its parent UIEvent, and indirectly from Event.

Specifications

Specification Status Comment
Document Object Model (DOM) Level 3 Events Specification
The definition of 'FocusEvent' in that specification.
Obsolete Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 24.0 (24.0) 9.0 (Yes) (Yes)
Constructor (Yes) (Yes) 24.0 (24.0) No support (Yes) (Yes)
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 24.0 (24.0) (Yes) (Yes) (Yes)
Constructor (Yes) (Yes) 24.0 (24.0) No support (Yes) (Yes)

See also

  • The Event base interface.

文件標籤與貢獻者

 此頁面的貢獻者: danielnixon, erikadoyle, teoli, kscarfone
 最近更新: danielnixon,