geolocation.js

//geolocation.js
// How to use Navigator.geolocation
//
let G, options, spans;

document.addEventListener('DOMContentLoaded', init);

function init(){
    if(navigator.geolocation){
        let giveUp = 1000 * 30;  //30 seconds
        let tooOld = 1000 * 60 * 60;  //one hour
        options ={
            enableHighAccuracy: true,
            timeout: giveUp,
            maximumAge: tooOld
        }
        
        navigator.geolocation.getCurrentPosition(gotPos, posFail, options);
    }else{
        //using an old browser that doesn't support geolocation
    }
}

function gotPos(position){
    spans = document.querySelectorAll('p span');
    spans[0].textContent = position.coords.latitude;
    spans[1].textContent = position.coords.longitude;
    spans[2].textContent = position.coords.accuracy;
    
    spans[6].textContent = position.timestamp;
}

function posFail(err){
    //err is a number
    let errors = {
        1: 'No permission',
        2: 'Unable to determine',
        3: 'Took too long'
    }
    document.querySelector('h1').textContent = errors[err];
}