Which API would you use to retrieve a device's current position and monitor changes?

Which API would you use to retrieve a device's current position and monitor changes?

• A. Geolocation API (navigator.geolocation; watchPosition)
• B. DeviceLocation API
• C. PositionObserver API
• D. LocationServices API

Answer: (A)

Tracking a device’s location and updates is handled by the Geolocation API. It provides ways to get the current position and to monitor changes over time using watchPosition, which calls back whenever the device moves or the position changes. This dual capability—both retrieving the current coordinates and continually tracking updates—is exactly what you need in one integrated API. The other options aren’t standard web APIs for location in browsers, so they wouldn’t reliably provide current position or ongoing updates. They aren’t commonly supported or documented like the Geolocation API.

Tracking a device’s location and updates is handled by the Geolocation API. It provides ways to get the current position and to monitor changes over time using watchPosition, which calls back whenever the device moves or the position changes. This dual capability—both retrieving the current coordinates and continually tracking updates—is exactly what you need in one integrated API.

The other options aren’t standard web APIs for location in browsers, so they wouldn’t reliably provide current position or ongoing updates. They aren’t commonly supported or documented like the Geolocation API.