---
title: initWebKitAnimationEvent
framework: webkitjs
role: pseudoSymbol
path: webkitjs/webkitanimationevent/1807040-initwebkitanimationevent
---

# initWebKitAnimationEvent

Initializes a new animation event object.

## Declaration

```data
void initWebKitAnimationEvent (in DOMString typeArg, in boolean canBubbleArg, in boolean cancelableArg, in DOMString animationNameArg, in double elapsedTimeArg);
```

## Parameters

- `typeArg`: The type of event. See doc://com.apple.documentation/documentation/webkitjs/webkitanimationevent#1652505 for possible values.
- `canBubbleArg`: Determines whether the event can bubble. Pass true if it can bubble; otherwise, false.
- `cancelableArg`: Determines whether the event’s default action can be prevented. Pass true if it can be prevented; otherwise, false.
- `animationNameArg`: The name of the animation associated with this event.
- `elapsedTimeArg`: The duration of the animation, in seconds, since the event was sent.

## Overview

Overview You use this method to initialize the value of a WebKitTransitionEvent object that is created through the DocumentEvent interface. This method can only be invoked before the WebKitTransitionEvent object is dispatched via the dispatchEvent method (although it can be invoked multiple times during that phase, if necessary). If it is invoked multiple times, the final invocation takes precedence.