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

The Element interface's animate() method is a shortcut method which creates a new Animation, applies it to the element, then plays the animation. It returns the created Animation object instance.

Elements can have multiple animations applied to them. You can get a list of the animations that affect an element by calling Element.getAnimations().

Syntax

var animation = element.animate(keyframes, options); 

Parameters

keyframes

Either an array of keyframe objects, or a keyframe object whose property are arrays of values to iterate over. See Keyframe Formats for more details.

options
Either an integer representing the animation's duration (in milliseconds), or an Object containing one or more timing properties: 
id Optional
A property unique to animate(): a DOMString with which to reference the animation.
delay Optional
The number of milliseconds to delay the start of the animation. Defaults to 0.
direction Optional
Whether the animation runs forwards (normal), backwards (reverse), switches direction after each iteration (alternate), or runs backwards and switches direction after each iteration (alternate-reverse). Defaults to "normal".
duration Optional
The number of milliseconds each iteration of the animation takes to complete. Defaults to 0. Although this is technically optional, keep in mind that your animation will not run if this value is 0.
easing Optional
The rate of the animation's change over time. Accepts the pre-defined values "linear", "ease", "ease-in", "ease-out", and "ease-in-out", or a custom "cubic-bezier" value like "cubic-bezier(0.42, 0, 0.58, 1)". Defaults to "linear".
endDelay Optional
The number of milliseconds to delay after the end of an animation. This is primarily of use when sequencing animations based on the end time of another animation. Defaults to 0. 
fill Optional
Dictates whether the animation's effects should be reflected by the element(s) prior to playing ("backwards"), retained after the animation has completed playing ("forwards"), or both. Defaults to "none".
iterationStart Optional
Describes at what point in the iteration the animation should start. 0.5 would indicate starting halfway through the first iteration for example, and with this value set, an animation with 2 iterations would end halfway through a third iteration. Defaults to 0.0.
iterations Optional
The number of times the animation should repeat. Defaults to 1, and can also take a value of Infinity to make it repeat for as long as the element exists.

Future Options

The following options are currently not shipped anywhere, but will be added in the near future.

composite Optional
Determines how values are combined between this animation and other, separate animations that do not specify their own specific composite operation. Defaults to replace.
  • add dictates an additive effect, where each successive iteration builds on the last. For instance with transform, a translateX(-200px) would not override an earlier rotate(20deg) value but result in translateX(-200px) rotate(20deg).
  • accumulate is similar but a little smarter: blur(2) and blur(5) become blur(7), not blur(2) blur(5).
  • replace overwrites the previous value with the new one. 
iterationComposite Optional
Determines how values build from iteration to iteration in this animation. Can be set to accumulate or replace (see above). Defaults to replace.
spacing Optional
Determines how keyframes without temporal offsets should be distributed during the animation's duration. Defaults to distribute.
  • distribute positions keyframes so that the difference between subsequent keyframe offsets are equal, that is to say, without any offsets, it will equally distribute the keyframes across play time.
  • paced positions keyframes so that the distance between subsequent values of a specified paced property are equal, that is to say, keyframes are spaced further apart the greater the difference in their property values.

 

Return value

Returns an Animation.

Example

In the demo Down the Rabbit Hole (with the Web Animation API), we use the convenient animate() method to immediately create and play an animation on the #tunnel element to make it flow upwards, infinitely. Notice the array of objects passed as keyframes and also the timing options block.

document.getElementById("tunnel").animate([
  // keyframes
  { transform: 'translateY(0px)' }, 
  { transform: 'translateY(-300px)' }
], { 
  // timing options
  duration: 1000,
  iterations: Infinity
});

Specifications

Specification Status Comment
Web Animations
The definition of 'animate()' in that specification.
Working Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 36Edge No support NoFirefox Full support 48IE No support NoOpera Full support 23Safari ? WebView Android Full support 37Chrome Android Full support 36Edge Mobile ? Firefox Android Full support 48Opera Android Full support 23Safari iOS ? Samsung Internet Android ?
id option
Experimental
Chrome Full support 50Edge No support NoFirefox Full support 48IE No support NoOpera Full support 37Safari ? WebView Android Full support 50Chrome Android Full support 50Edge Mobile ? Firefox Android Full support 48Opera Android Full support 37Safari iOS ? Samsung Internet Android ?
composite, iterationComposite, and spacing options
Experimental
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also

Tag del documento e collaboratori

Ultima modifica di: fscholz,