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AnimationEvent: AnimationEvent() constructor - Web APIs | MDN
new AnimationEvent(type)
new AnimationEvent(type, options)
type
A string with the name of the type of the AnimationEvent
.
It is case-sensitive and browsers set it to animationstart
, animationend
, or animationiteration
.
options
Optional
An object that, in addition of the properties defined in Event()
, has the following properties:
animationName
Optional
A string containing the value of the animation-name
CSS property associated with the transition. It defaults to ""
.
elapsedTime
Optional
A 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
A string, 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 itself, specify an empty string: ""
. It defaults to ""
.