GeolocationCoordinates.altitude

Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The GeolocationCoordinates.altitude read-only property is a double representing the altitude of the position in meters above the WGS84 ellipsoid (which defines the nominal sea level surface). This value is null if the implementation cannot provide this data.

Syntax

let alt = geolocationCoordinatesInstance.altitude

Value

A double representing the altitude of the position in meters above the WGS84 ellipsoid.

Specifications

Specification Status Comment
Geolocation API
The definition of 'Coordinates.altitude' in that specification.
Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
altitudeChrome Full support 5Edge Full support 12Firefox Full support 3.5IE Full support 9Opera Full support 16
Full support 16
No support 10.6 — 15
Safari Full support 5WebView Android Full support 37Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 16
Full support 16
No support 11 — 14
Safari iOS ? Samsung Internet Android Full support 1.0

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also