VTTCue() | Web API

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VTTCue() constructor creates and returns a new VTTCue 对象。

 vttCue = new VTTCue(startTime, endTime, text);

startTime: 这是 double representing the initial text track cue start time. This is the time, given in seconds and fractions of a second, denoting the beginning of the range of the media data to which this cue applies. For example, if a cue is to be visible from 50 seconds to a one minute, five and a half seconds in the media's playback, startTime will be 50.0.
endTime: 这是 double representing the ending time for this text track cue. This is the time at which the cue should stop being presented to the user, given in seconds and fractions thereof. Given the example cue mentioned under startTime ，值对于 endTime would be 65.5.
text: DOMString providing the text that will be shown during the time span indicated by startTime and endTime .

新的 VTTCue object representing a cue which will be presented during the time span given.

// Create a cue that is shown from 2 to 3 seconds and uses the given text.
var cue = new VTTCue(2, 3, 'Cool text to be displayed');

规范	状态	注释
WebVTT: The Web Video Text Tracks Format The definition of 'VTTCue()' in that specification.	候选推荐

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
`VTTCue()` 构造函数	Chrome Yes	Edge ≤79	Firefox Yes	IE ?	Opera Yes	Safari ?	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS ?	Samsung Internet Android Yes