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HTML 音频/视频 DOM readyState 属性

❮ HTML 音频/视频 DOM 参考

示例

获取视频的当前就绪状态

let vid = document.getElementById("myVideo");
alert(vid.readyState);
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定义和用法

readyState 属性返回音频/视频的当前就绪状态。

就绪状态指示音频/视频是否准备播放。

注意:此属性是只读的。


浏览器支持

表中的数字指定完全支持该属性的第一个浏览器版本。

属性
readyState 9.0 3.5

语法

audio|video.readyState

返回值

类型 描述
数字 表示音频/视频元素的就绪状态
  • 0 = HAVE_NOTHING - 没有关于音频/视频是否准备好的信息
  • 1 = HAVE_METADATA - 音频/视频的元数据已准备就绪
  • 2 = HAVE_CURRENT_DATA - 当前播放位置的数据可用,但播放下一帧/毫秒所需的数据不足
  • 3 = HAVE_FUTURE_DATA - 当前和至少下一帧的数据可用
  • 4 = HAVE_ENOUGH_DATA - 有足够的数据可以开始播放

❮ HTML 音频/视频 DOM 参考
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