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HTMLMediaElement.networkState

The HTMLMediaElement.networkState property indicates the current state of the fetching of media over the network.

Syntax

var networkState = audioOrVideo.networkState;

Value

An unsigned short. Possible values are:

Constant	Value	Description
`NETWORK_EMPTY`	0	There is no data yet. Also, `readyState` is `HAVE_NOTHING`.
`NETWORK_IDLE`	1	HTMLMediaElement is active and has selected a resource, but is not using the network.
`NETWORK_LOADING`	2	The browser is downloading HTMLMediaElement data.
`NETWORK_NO_SOURCE`	3	No HTMLMediaElement src found.

Examples

This example will listen for the audio element to begin playing and then check if it is still loading data.

<audio id="example" preload="auto">
 <source src="sound.ogg" type="audio/ogg" />
</audio>

var obj = document.getElementById('example');

obj.addEventListener('playing', function() {

  if (obj.networkState === 2) {
    // Still loading...
  }

});

Specifications

Specification	Status	Comment
HTML Living Standard The definition of 'HTMLMediaElement.networkState' in that specification.	Living Standard	No change from HTML5
HTML5 The definition of 'HTMLMediaElement.networkState' in that specification.	Recommendation	Initial definition.

Browser compatibility

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	3.5 (1.9.1) [1]	9	?	?

Feature	Android	Edge	Firefox Mobile (Gecko)	Firefox OS (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	?	(Yes)	(Yes)