HTMLMediaElement.autoplay

在此页

句法
范例
规范
浏览器兼容性
另请参阅
相关话题

HTMLMediaElement.autoplay property reflects the autoplay HTML attribute, indicating whether playback should automatically begin as soon as enough media is available to do so without interruption.

A media element whose source is a MediaStream and whose autoplay 特性为 true will begin playback when it becomes active (that is, when MediaStream.active becomes true ).

注意： Sites which automatically play audio (or videos with an audio track) can be an unpleasant experience for users, so it should be avoided when possible. If you must offer autoplay functionality, you should make it opt-in (requiring a user to specifically enable it). However, autoplay can be useful when creating media elements whose source will be set at a later time, under user control.

For a much more in-depth look at autoplay, autoplay blocking, and how to respond whena autoplay is blocked by the user's browser, see our article Autoplay guide for media and Web Audio APIs .

句法

HTMLMediaElement.autoplay = true | false;
var autoplay = HTMLMediaElement.autoplay;

值

A 布尔 whose value is true if the media element will begin playback as soon as enough content has loaded to allow it to do so without interruption.

注意： Some browsers offer users the ability to override autoplay in order to prevent disruptive audio or video from playing without permission or in the background. Do not rely on autoplay actually starting playback and instead use play 事件。

范例

...

<video id="video" controls>
  <source src="https://player.vimeo.com/external/250688977.sd.mp4?s=d14b1f1a971dde13c79d6e436b88a6a928dfe26b&profile_id=165">
</video>

*** Disable autoplay (recommended) ***
      false is the default value
        document.querySelector('#video').autoplay = false;

规范

规范	状态	注释
HTML 实时标准 The definition of 'HTMLMediaElement.autoplay' in that specification.	实时标准	无变化自 HTML5
HTML5 The definition of 'HTMLMediaElement.autoplay' in that specification.	推荐	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
`autoplay`	Chrome 43	Edge 12	Firefox 3.5	IE 9	Opera 30	Safari 6	WebView Android 43	Chrome Android 43	Firefox Android Yes	Opera Android 30	Safari iOS Yes	Samsung Internet Android 4.0

图例

完整支持

另请参阅

The interface defining it, HTMLMediaElement .
<audio> and <video> 元素

元数据

最后修改： Jul 16, 2020

在此页

句法

值

范例

规范

浏览器兼容性

图例

另请参阅

相关话题