FocusEvent()

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

The FocusEvent() constructor returns a newly created FocusEvent object with an optional EventTarget. When a change a focus has a source and a destination, the relatedTarget value must be set to the other target.

Syntax

var focusEvent = new FocusEvent(typeArg, focusEventInit); 

Properties

The FocusEvent() constructor also inherits arguments from UIEvent() and from Event().

typeArg
Is a DOMString representing the name of the event.
focusEventInitOptional
Is a FocusEventInit dictionary, having the following fields:
  • "relatedTarget", optional and defaulting to null, is an EventTarget representing the secondary target of a FocusEvent.

The FocusEventInit dictionary also accepts fields from the UIEventInit and EventInit dictionaries.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Experimental
Chrome Full support YesEdge Full support YesFirefox Full support 24IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 24Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also

Document Tags and Contributors

Contributors to this page: fscholz, teoli, kscarfone
Last updated by: fscholz,