property reflects the
autoplay HTML attribute, indicating
whether playback should automatically begin as soon as enough media is available to do
so without interruption.
Note: Sites which automatically play audio (or videos with an audio track) can be an unpleasant experience for users, so it should be avoided when possible. If you must offer autoplay functionality, you should make it opt-in (requiring a user to specifically enable it). However, autoplay can be useful when creating media elements whose source will be set at a later time, under user control.
For a much more in-depth look at autoplay, autoplay blocking, and how to respond when autoplay is blocked by the user's browser, see our article Autoplay guide for media and Web Audio APIs.
A boolean value which is
true if the media element will
begin playback as soon as enough content has loaded to allow it to do so without
Note: Some browsers offer users the ability to override
autoplay in order to prevent disruptive audio or video from playing
without permission or in the background. Do not rely on
starting playback and instead use
<video id="video" controls>
// Disable autoplay (recommended)
// false is the default value
document.querySelector("#video").autoplay = false;
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