NetworkInformation.effectiveType

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The effectiveType read-only property of the NetworkInformation interface returns the effective type of the connection meaning one of 'slow-2g', '2g', '3g', or '4g'. This value is determined using a combination of recently observed, round-trip time and downlink values.

Syntax

var effectiveType = NetworkInformation.effectiveType

Value

A String containing one of 'slow-2g', '2g', '3g', or '4g'.

Specifications

Specification Status Comment
Network Information API
The definition of 'effectiveType' in that specification.
Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Experimental
Chrome Full support 61Edge No support NoFirefox No support NoIE No support NoOpera Full support 48Safari No support NoWebView Android Full support 50Chrome Android Full support 38Edge Mobile ? Firefox Android Full support YesOpera Android Full support 37Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

Document Tags and Contributors

Contributors to this page: fscholz, jpmedley, diaboltron
Last updated by: fscholz,