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HTML DOM Audio readyState property

Audio Object Reference Audio Object

Examples

Obtaining audio readiness:

var x = document.getElementById("myAudio").readyState;
document.getElementById("demo").innerHTML = x;

x output:

4 // 表示有足够的数据来开始播放音频

try it"

Definition and Usage

readyState property returns the current audio ready state.

Ready status indicates whether the audio is ready to play.

Note: This property is read-only attribute.


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All major browsers support readyState property.

Note: Internet Explorer 8 and earlier versions of IE does not support this property.


grammar

audioObject .readyState

return value

类型 描述
数字值

表示音频元素的就绪状态:

  • 0 = HAVE_NOTHING - 没有关于音频是否就绪的信息
  • 1 = HAVE_METADATA - 关于音频就绪的元数据
  • 2 = HAVE_CURRENT_DATA - 关于当前播放位置的数据是可用的,但没有足够的数据来播放下一帧/毫秒
  • 3 = HAVE_FUTURE_DATA - 当前及至少下一帧的数据是可用的
  • 4 = HAVE_ENOUGH_DATA - 可用数据足以开始播放


Audio Object Reference Audio Object