在此页

• 特性
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

EffectTiming dictionary, part of the Web 动画 API , is used by Element.animate() , KeyframeEffectReadOnly() ，和 KeyframeEffect() to describe timing properties for animation effects. These properties are all optional, although without setting a duration the animation will not play.

Simply put, these properties describe how the 用户代理 should go about making the transition from keyframe to keyframe, and how to behave when the animation begins and ends.

特性

delay 可选

The number of milliseconds to delay the start of the animation. Defaults to 0.

direction 可选

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 可选

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 可选

The rate of the animation's change over time. Accepts the pre-defined values "linear" , "ease" , "ease-in" , "ease-out" ，和 "ease-in-out" , or a custom "cubic-bezier" value like "cubic-bezier(0.42, 0, 0.58, 1)" . Defaults to "linear" .

endDelay 可选

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 可选

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" )，或 both . Defaults to "none" .

iterationStart 可选

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 可选

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.

规范

规范	状态	注释
Web 动画 The definition of 'EffectTiming' in that specification.	工作草案	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
EffectTiming	Chrome 67 67 不支持 52 — 67 Alternate Name Alternate Name Uses the non-standard name: AnimationEffectTimingProperties	Edge ≤79	Firefox 63	IE ?	Opera Yes	Safari ?	WebView Android 67 67 不支持 52 — 67 Alternate Name Alternate Name Uses the non-standard name: AnimationEffectTimingProperties	Chrome Android 67 67 不支持 52 — 67 Alternate Name Alternate Name Uses the non-standard name: AnimationEffectTimingProperties	Firefox Android 63	Opera Android Yes	Safari iOS ?	Samsung Internet Android Yes
delay	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
direction	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
duration	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
easing	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android Yes	Safari iOS No	Samsung Internet Android Yes
endDelay	Chrome 52	Edge 79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
fill	Chrome 52	Edge 79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
iterations	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes
iterationStart	Chrome 52	Edge ≤79	Firefox 63	IE No	Opera Yes	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 63	Opera Android No	Safari iOS No	Samsung Internet Android Yes

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

使用非标名称。

另请参阅

• Web 动画 API
• 使用 Web 动画 API
• Element.animate()
• KeyframeEffect()
• KeyframeEffectReadOnly()

元数据

• 最后修改： Jan 28, 2020

相关话题

1. Web 动画 API
2. EffectTiming
3. 特性

   1. delay
   2. direction
   3. duration
   4. easing
   5. endDelay
   6. fill
   7. iterations
   8. iterationStart
4. Web 动画相关页面

   1. 动画
   2. AnimationEffect
   3. AnimationEvent
   4. AnimationPlaybackEvent
   5. AnimationTimeline
   6. Document.getAnimations()
   7. Document.timeline
   8. DocumentTimeline
   9. Element.animate()
   10. KeyframeEffect