Baseline Widely available
The read-only HTMLMediaElement
property duration
indicates the length of the element's media in seconds.
A double-precision floating-point value indicating the duration of the media in seconds. If no media data is available, the value NaN
is returned. If the element's media doesn't have a known durationâsuch as for live media streamsâthe value of duration
is Infinity
.
const obj = document.createElement("video");
console.log(obj.duration); // NaN
Specifications Browser compatibility See also
HTMLMediaElement.currentTime
: The current playback position of the media<audio>
and <video>
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