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diff --git a/files/ja/web/api/geolocationcoordinates/altitudeaccuracy/index.md b/files/ja/web/api/geolocationcoordinates/altitudeaccuracy/index.md new file mode 100644 index 0000000000..e21b8019a2 --- /dev/null +++ b/files/ja/web/api/geolocationcoordinates/altitudeaccuracy/index.md @@ -0,0 +1,42 @@ +--- +title: GeolocationCoordinates.altitudeAccuracy +slug: Web/API/GeolocationCoordinates/altitudeAccuracy +tags: + - API + - Geolocation API + - GeolocationCoordinates + - Property + - Secure context + - altitudeAccuracy +browser-compat: api.GeolocationCoordinates.altitudeAccuracy +--- +{{securecontext_header}}{{APIRef("Geolocation API")}} + +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 + +```js +let altAcc = geolocationCoordinatesInstance.altitudeAccuracy +``` + +### Value + +A positive `double` representing the accuracy, with a 95% confidence level, +of the `altitude` expressed in meters. + +## Specifications + +{{Specifications}} + +## Browser compatibility + +{{Compat}} + +## See also + +- [Using the Geolocation API](/en-US/docs/Web/API/Geolocation_API/Using_the_Geolocation_API) +- {{domxref("GeolocationCoordinates")}} |