KeyframeEffect.getKeyframes()

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

The getKeyframes() method of a KeyframeEffect returns an Array of the computed keyframes that make up this animation along with their computed offsets.

Syntax

var keyframes = keyframeEffect.getKeyframes();

Parameters

None.

Return value

Returns a sequence of objects with the following format:

property value pairs: As many property value pairs as are contained in each keyframe of the animation.
offset: The offset of the keyframe specified as a number between 0.0 and 1.0 inclusive or null. This is equivalent to specifying start and end states in percentages in CSS stylesheets using @keyframes. This will be null if the keyframe is automatically spaced using KeyframeEffect.spacing.
computedOffset: The computed offset for this keyframe, calculated when the list of computed keyframes was produced according to KeyframeEffect.spacing. Unlike offset, above, the computedOffset is never null.
easing: The easing function used from this keyframe until the next keyframe in the series.
composite: The KeyframeEffect.composite operation used to combine the values specified in this keyframe with the underlying value. This will be absent if the composite operation specified on the effect is being used.

Examples

In the Red Queen Race example, we can inspect Alice and the RedQueen's animation to see its individual keyframes like so:

// Return the array of keyframes

redQueen_alice.effect.getKeyframes();

Specifications

Specification
Web Animations # dom-keyframeeffect-getkeyframes

Browser compatibility

BCD tables only load in the browser