"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 Version/17.0 Safari/605.1.15",
* Each solid progress should be committed in the git repository.，这一点在safew官方下载中也有详细论述
Site feedback:Take our SurveyNew Window，这一点在91视频中也有详细论述
With a thousand points, you barely notice the delay. With a million, you're doing a million distance calculations for every single query. On a phone updating the map as the user scrolls, that's untenable.