HTMLMediaElement: durationchange 事件

durationchange 事件会在 duration 属性更新时被触发。

Bubbles No
Cancelable No
Interface Event
Target Element
Default Action None
Event handler property GlobalEventHandlers.ondurationchange
Specification HTML5 media

例子

下面的例子为 HTMLMediaElement 的 durationchange 事件添加事件监听器，然后在事件触发时发送一个消息。

使用 addEventListener():

const video = document.querySelector('video');

video.addEventListener('durationchange', (event) => {
  console.log('Not sure why, but the duration of the video has changed.');
});

使用 ondurationchange 事件处理器属性：

const video = document.querySelector('video');

video.ondurationchange = (event) => {
  console.log('Not sure why, but the duration of the video has changed.');
};

Specifications

Specification
HTML Standard
# event-media-durationchange
HTML Standard
# handler-ondurationchange

Browser compatibility

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See Also