HTML Reference Manual

HTML Tag Directory

HTML Audio/Video DOM autoplay attribute

The autoplay property of HTMLMediaElement is equivalent to the autoplay attribute in HTML, indicating whether the video should play automatically when the player has downloaded enough media files to play. Note: Some versions of Chrome only support autostart, not autoplay

　HTML Audio/Video DOM Reference Manual

Online Example

Enable autoplay and reload the video:

Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML Audio/Using the video audioTracks property-Basic Tutorial(oldtoolbag.com)</title>/<title>
</<head>
<body>
<button onclick="enableAutoplay()" type="button">Enable autoplay</button>
<button onclick="disableAutoplay()" type="button">Disable autoplay</button>
<button onclick="checkAutoplay()" type="button">Check autoplay status</button>
<br>　
<video id="video1" controls="controls">
　　<source src="movie.mp4" type="video/mp4">
　　<source src="movie.ogg" type="video/ogg">
　　Your browser does not support HTML5　video tag.
</video>
<script>
myVid=document.getElementById("video1);
function enableAutoplay()
{　
　　myVid.autoplay=true;
　　myVid.load();
}　
function disableAutoplay()
{　
　　myVid.autoplay=false;
　　myVid.load();
}　
function checkAutoplay()}
{　
　　alert(myVid.autoplay);
}　
</script>　
</body>
</html>

Test and see ‹/›

Definition and Usage

autoplay attribute sets or returns whether the audio is loaded/Start playing the video immediately after the video.

Browser Compatibility

IEFirefoxOperaChromeSafari

All major browsers support the autoplay attribute.

Note:Internet Explorer 8 And earlier versions do not support this attribute.

Syntax

Set autoplay attribute:

audio|video.autoplay=true|false

Return autoplay attribute:

audio|video.autoplay

Attribute value

Value	Description
true	Indicates the audio/The video should start playing immediately after loading.
false	Default. Indicates the audio/The video should not start playing immediately after loading.

Technical Details

Return value:	Boolean value, true\|false
Default value:	false

　HTML Audio/Video DOM Reference Manual

HTML: <template> tag