What Geolocation API method is used to retrieve the current geographic location of the user?

What Geolocation API method is used to retrieve the current geographic location of the user?

• A. watchPosition()
• B. requestLocation()
• C. geoLocate()
• D. getCurrentPosition()

Answer: (D)

Retrieving the user’s current location with a one-shot call uses getCurrentPosition from the Geolocation API. This method asks the device for its present coordinates and delivers them to your success callback as a Position object, which includes latitude and longitude (and can also provide accuracy, altitude, speed, and heading). You can pass an options object to request high accuracy, set a timeout, or specify that cached results may be used. If you need continuous updates instead of just one location, watchPosition would be the right choice, because it keeps delivering updates as the location changes. The other names aren’t part of the standard API, so they wouldn’t work in typical browser environments.

Retrieving the user’s current location with a one-shot call uses getCurrentPosition from the Geolocation API. This method asks the device for its present coordinates and delivers them to your success callback as a Position object, which includes latitude and longitude (and can also provide accuracy, altitude, speed, and heading). You can pass an options object to request high accuracy, set a timeout, or specify that cached results may be used. If you need continuous updates instead of just one location, watchPosition would be the right choice, because it keeps delivering updates as the location changes. The other names aren’t part of the standard API, so they wouldn’t work in typical browser environments.