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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
HTML5 The definition of 'HTMLMediaElement.networkState' in that specification.	Recommendation

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	Yes	Yes	3.5 3.5 The `NETWORK_LOADED` state was removed to align with the HTML spec in Firefox 4.	9	Yes	Yes