GeolocationCoordinates: altitudeAccuracy property

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.

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The altitudeAccuracy read-only property of the GeolocationCoordinates interface is a strictly positive double representing the accuracy, with a 95% confidence level, of the altitude expressed in meters. This value is null if the implementation doesn't support measuring altitude.