TransitionEvent

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 transition 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: ''.

Types of TransitionEvent

transitioncancel

An Event fired when a CSS transition has been cancelled.

transitionend

An Event fired when a CSS transition has finished playing.

transitionrun

An Event fired when a CSS transition is created, when it is added to a set of running transitions, though not nessarilty started

transitionstart

An Event fired when a CSS transition has started transitioning.

Methods

Also inherits properties from its parent Event.

TransitionEvent.initTransitionEvent()

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

Specifications

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
TransitionEvent	27 2-71	12	4	10	≤12.1	7 ≤4	≤37 ≤37-71	27 18-71	4	≤12.1	7 ≤3	2.0 1.0-10.0
TransitionEvent	27	79	23	No	15	No	≤37	27	23	14	No	2.0
elapsedTime	2	12	4	10	≤12.1	6	≤37	18	4	≤12.1	6	1.0
initTransitionEvent	2-18	12-79	6-23	10	≤12.1-15	≤4-6	No	No	6-23	≤12.1-14	≤3-6	No
propertyName	2	12	4	10	≤12.1	6	≤37	18	4	≤12.1	6	1.0
pseudoElement	2	79	23	No	15	6	≤37	18	23	14	6	1.0

See also

• Using CSS transitions
• CSS properties: transition, transition-delay, transition-duration, transition-property, transition-timing-function.