Web/API/TransitionEvent/TransitionEvent

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

The TransitionEvent() constructor returns a newly created TransitionEvent, representing an event in relation with an transition.

Syntax

transitionEvent = new TransitionEvent(type, {propertyName: aPropertyName, 
                                             elapsedTime  : aFloat, 
                                             pseudoElement: aPseudoElementName});

Arguments

The TransitionEvent() constructor also inherits arguments from Event().

type: Is a DOMString representing the name of the type of the TransitionEvent. It is case-sensitive and can only be: 'transitionend'.
propertyName Optional: Is a DOMString containing the value of the property-name CSS property associated with the transition. It defaults to "".
elapsedTime Optional: Is float giving the amount of time the animation has been running, in seconds, when this event fired, excluding any time the animation was paused. For an "animationstart" event, elapsedTime is 0.0 unless there was a negative value for animation-delay, in which case the event will be fired with elapsedTime containing (-1 * delay). It defaults to 0.0.
pseudoElement Optional: Is a DOMString, starting with "::", containing the name of the pseudo-element the animation runs on. If the animation doesn't run on a pseudo-element but on the element, an empty string: "". It defaults to "".

Specifications

Specification	Status	Comment
CSS TransitionsThe definition of 'TransitionEvent()' in that specification.	Working Draft	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`TransitionEvent()` constructor Experimental'	Chrome Full support 27	Edge Full support 79	Firefox Full support 23	IE No support No	Opera Full support Yes	Safari No support No	WebView Android Full support Yes	Chrome Android Full support 27	Firefox Android Full support 23	Opera Android Full support Yes	Safari iOS No support No	Samsung Internet Android Full support 2.0

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.