GeolocationCoordinates

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2020⁩.

* Some parts of this feature may have varying levels of support.

Secure context: This feature is available only insecure contexts (HTTPS), in some or allsupporting browsers.

TheGeolocationCoordinates interface represents the position and altitude of the device on Earth, as well as the accuracy with which these properties are calculated.The geographic position information is provided in terms of World Geodetic System coordinates (WGS84).

Instance properties

TheGeolocationCoordinates interface doesn't inherit any properties.

GeolocationCoordinates.latitudeRead only: Returns adouble representing the position's latitude in decimal degrees.
GeolocationCoordinates.longitudeRead only: Returns adouble representing the position's longitude in decimal degrees.
GeolocationCoordinates.altitudeRead only: Returns adouble representing the position's altitude in meters, relative to nominal sea level. This value can benull if the implementation cannot provide the data.
GeolocationCoordinates.accuracyRead only: Returns adouble representing the accuracy of thelatitude andlongitude properties, expressed in meters.
GeolocationCoordinates.altitudeAccuracyRead only: Returns adouble representing the accuracy of thealtitude expressed in meters. This value can benull if the implementation cannot provide the data.
GeolocationCoordinates.headingRead only: Returns adouble representing the direction towards which the device is facing. This value, specified in degrees, indicates how far off from heading true north the device is.0 degrees represents true north, and the direction is determined clockwise (which means that east is90 degrees and west is270 degrees). Ifspeed is0 or the device is unable to provideheading information,heading isnull.
GeolocationCoordinates.speedRead only: Returns adouble representing the velocity of the device in meters per second. This value can benull.

Instance methods

TheGeolocationCoordinates interface doesn't inherit any methods.

GeolocationCoordinates.toJSON(): Returns a JSON representation of theGeolocationCoordinates object and enables serialization withJSON.stringify().