GeolocationCoordinates.altitudeAccuracy - Web APIs 编辑

Secure context

This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The GeolocationCoordinates.altitudeAccuracy read-only property 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.

Syntax

let altAcc = geolocationCoordinatesInstance.altitudeAccuracy

Value

A positive double representing the accuracy, with a 95% confidence level, of the altitude expressed in meters.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Using the Geolocation API
• GeolocationCoordinates