The Coordinates.heading read-only property is a double representing the direction in which the device is traveling. This value, specified in degrees, indicates how far off from heading due north the device is. Zero degrees represents true true north, and the direction is determined clockwise (which means that east is 90 degrees and west is 270 degrees). If Coordinates.speed is 0, heading is NaN. If the device is not able to provide heading information, this value is null.


<var>heading</var> = <var>coordinates</var>.heading


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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 3.5 (1.9.1) 9 10.60
No support 15.0
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? 4.0 (4) ? 10.60 ?

See also


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API Coordinates Geolocation API Property