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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.


Creates a FocusEvent event with the given parameters.


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.


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


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.

Document Tags and Contributors

 Contributors to this page: danielnixon, erikadoyle, teoli, kscarfone
 Last updated by: danielnixon,