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Home > Web Front-end > H5 Tutorial > html5 returns the attribute networkState of the current network status (activity) of audio/video

html5 returns the attribute networkState of the current network status (activity) of audio/video

黄舟
Release： 2017-11-09 09:51:06
Original
2315 people have browsed it

Example

Get the current network status of video: 

myVid=document.getElementById("video1");
alert(myVid.networkState);
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Definition and usage

networkState property returns audio/ The current network status (activity) of the video.

Browser support

All major browsers support the networkState attribute.

Note: This attribute is not supported in Internet Explorer 8 or earlier browsers.

Syntax

audio|video.networkState
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Return value

TypeDescription
Numeric value

represents the current network status of the audio/video element:

  • 0 = NETWORK_EMPTY - Audio/video has not been initialized

  • 1 = NETWORK_IDLE - The audio/video is active and the resource is selected, but the network is not being used

  • 2 = NETWORK_LOADING - The browser is downloading data

  • 3 = NETWORK_NO_SOURCE - Audio/video source not found

##Instance

Get Current network status of the video: 

<!DOCTYPE html> 
<html> 
<body> 

<p>
	<button onclick="getNWState()" type="button">获得网络状态</button>
</p>
<video id="video1" controls="controls" autoplay="autoplay">
	<source src="/kf51/demo/mov_bbb.mp4" type="video/mp4">
	<source src="/kf51/demo/mov_bbb.ogg" type="video/ogg">
	您的浏览器不支持 video 标签。
</video>

<script>
var myVid = document.getElementById("video1");
function getNWState() { 
	alert(myVid.networkState);
} 
</script> 

</body> 
</html>
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