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HTML 音频/视频 DOM durationchange 事件

❮ HTML 音频/视频 DOM 参考资料

示例

提醒视频时长已更改

let vid = document.getElementById("myVideo");
vid.ondurationchange = function() {
    alert("视频时长已更改");
};
亲自试一试 »

下方还有更多“亲自试一试”示例。


定义和用法

durationchange 事件在指定音频/视频的时长数据发生更改时发生。

注意:加载音频/视频时,时长将从“NaN”更改为音频/视频的实际时长。

在音频/视频的加载过程中,以下事件按此顺序发生:

  1. loadstart
  2. durationchange
  3. loadedmetadata
  4. loadeddata
  5. progress
  6. canplay
  7. canplaythrough

浏览器支持

表中的数字指定完全支持该事件的第一个浏览器版本。

事件
durationchange 9.0

语法

在 HTML 中

<audio|video ondurationchange="myScript">亲自试一试

在 JavaScript 中

audio|video.ondurationchange=function(){myScript};亲自试一试

在 JavaScript 中,使用 addEventListener() 方法

audio|video.addEventListener("durationchange", myScript);亲自试一试

技术细节

支持的 HTML 标签 <audio> 和 <video>
支持的 JavaScript 对象 Audio, Video

更多示例

示例

提醒音频时长已更改

let aud = document.getElementById("myAudio");
aud.ondurationchange = function() {
    alert("音频时长已更改");
};
亲自试一试 »

❮ HTML 音频/视频 DOM 参考资料
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