Determining the location of site users - who has had experience with the google location services api?

Question

Google

The task is: the site must determine the user's location at the moment (not using gps, but only wi-fi coordinates and hundreds of mobile operators). This is how many sites work, from the well-known foursquare.com . I studied a little: it seems that you need to give a request to the browser, and with the help of its service, it will give the site the coordinates. Opera, Chrome, FireFox seem to use google location services, Yandex has its own. I did not find a detailed description of how to implement this. Help, click!

Answer 1

Either I didn't understand the question, or Google has absolutely nothing to do with it.
Here's how to get the location in JavaScript: developer.mozilla.org/en-US/docs/WebAPI/Using_geolocation
How the browser handles this should be the least of your concerns. If available, GPS, Wi-Fi, etc. will be taken into account.