https://developer.mozilla.org/en-US/docs/Web/API/GeolocationCoordinates/accuracy
GeolocationCoordinates: accuracy property - Web APIs | MDN
The accuracy read-only property of the GeolocationCoordinates interface is a strictly positive double representing the accuracy, with a 95% confidence level,...
web apisaccuracypropertymdn
https://developer.mozilla.org/en-US/docs/Web/API/GeolocationCoordinates/toJSON
GeolocationCoordinates: toJSON() method - Web APIs | MDN
The toJSON() method of the GeolocationCoordinates interface is a serializer; it returns a JSON representation of the GeolocationCoordinates object.
web apistojsonmethodmdn
https://developer.mozilla.org/de/docs/Web/API/GeolocationCoordinates/toJSON
GeolocationCoordinates: toJSON()-Methode - Web-APIs | MDN
Die toJSON()-Methode der GeolocationCoordinates-Schnittstelle ist ein Serializer; sie liefert eine JSON-Darstellung des GeolocationCoordinates-Objekts.
web apistojsonmethodemdn