firebase/geoFire — pull request #15 by mikepugh (2014-05-27 16:27:18+00:00)
Title: Change precision from 12 to 10 - 1 meter

From what I've read online, 10 digits will get you ~1m precision. 12 gets you ~1 millimeter. I tested two locations which were < 1 meter apart, and the calculated hashes start to differ at the 10th digit. Perhaps make this configurable, with 10 being the default - in the event someone out there needs greater precision?