HTMLMediaElement: durationchange 事件

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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():

js
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：

js
const video = document.querySelector("video");

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

Specifications

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

Browser compatibility

See Also