This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The NetworkInformation interface provides information about the connection a device is using to commuinicate with the network and provides a means for scripts to be notified if the connection type changes. The NetworkInformation interfaces cannot be instantiated. It is instead accessed through the connection property of the Navigator interface.
Properties
This interface also inherits properties of its parent, EventTarget.
NetworkInformation.typeRead only- Returns the type of connection a device is using to communicate with the network. It will be one of the following values:
bluetoothcellularethernetnonewifiwimaxotherunknown
NetworkInformation.downlinkMaxRead only- Returns the maximum downlink speed, in megabits per second (Mbps), for the underlying connection technology.
Event handlers
NetworkInformation.onchange- The event that's fired when connection information changes and the
changeis fired on this object.
Methods
This interface also inherits methods of its parent, EventTarget.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Network Information API The definition of 'NetworkInformation' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 20 webkit | 31.0 moz[1] | No support | No support | No support |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | 31.0 moz[1] | No support | No support | No support | No support |
[1] The Network API can be disabled using the dom.network.enabled preference. From Gecko 12.0 to Gecko 30.0 included, this interface was called Connection and had different members. As of Gecko 12.0, the Network API is implemented for Android systems only. Support for Linux (bug 712442) and Windows (bug 721306) systems is in progress.
See also
- Network Information API
- Online and offline events
- The
Navigatorinterface that implements it.