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

The TransitionEvent interface represents events providing information related to transitions.

Constructor

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

Properties

Also inherits properties from its parent Event.

TransitionEvent.propertyName Read only
Is a DOMString containing the name CSS property associated with the transition.
TransitionEvent.elapsedTime Read only
Is a float giving the amount of time the transtion has been running, in seconds, when this event fired. This value is not affected by the transition-delay property.
TransitionEvent.pseudoElement Read only
Is a DOMString, starting with '::', containing the name of the pseudo-element the animation runs on. If the transition doesn't run on a pseudo-element but on the element, an empty string: ''.

Methods

Also inherits properties from its parent Event.

TransitionEvent.initTransitionEvent()
Initializes a TransitionEvent created using the deprecated Document.createEvent("TransitionEvent") method.

Specifications

Specification Status Comment
CSS Transitions
The definition of 'TransitionEvent' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 4.0 (2.0) 10.0 (Yes) (Yes)
Constructor (Yes) No support 23.0 (23.0) No support (Yes) No support
initTransitionEvent() No support[1] (Yes) 6.0 (6.0)
Removed in 23.0 (23.0)
10.0 No support[1] (Yes)
pseudoelement (Yes) No support 23.0 (23.0) No support (Yes) No support
Feature Android Webview Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) 4.0 (2.0) 10.0 (Yes) (Yes)
Constructor (Yes) (Yes) No support 23.0 (23.0) No support (Yes) No support
initTransitionEvent() No support[1] No support[1] (Yes) 6.0 (6.0)
Removed in 23.0 (23.0)
10.0 No support[1] (Yes)
pseudoelement (Yes) (Yes) No support 23.0 (23.0) No support (Yes) No support

[1] Removal version unknown.

See also

Document Tags and Contributors

 Contributors to this page: jpmedley, erikadoyle, fscholz, Jeremie, teoli, Noitidart
 Last updated by: jpmedley,