HTMLMediaElement.canPlayType()

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HTMLMediaElement 方法 canPlayType() reports how likely it is that the current browser will be able to play media of a given MIME type.

注意： This feature is not available in Web 工作者 .

canPlayResponse = audioOrVideo.canPlayType(mediaType);

A DOMString indicating how likely it is that the media can be played. The string will be one of the following values:

probably: Media of the type indicated by the mediaType parameter is probably playable on this device.
maybe
"" (empty string)

var obj = document.createElement('video');
console.log(obj.canPlayType('video/mp4')); // "maybe"

规范	状态	注释
HTML 实时标准 The definition of 'canplaytype' in that specification.	实时标准
HTML5 The definition of 'HTMLMediaElement.canplaytype' in that specification.	推荐	初始定义。

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
`canPlayType()`	Chrome Yes	Edge 12	Firefox 3.5 3.5 Prior to Firefox 28, `canPlayType()` 返回 `probably` when asked about WebM audio or video files without the `codecs` parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so `maybe` is now correctly returned.	IE 9	Opera Yes	Safari 6	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes