weather.js

//Mozilla documentation for geolocation
function getWeather() {
  var output = document.getElementById("out");
  var picture = document.getElementById("icon");
  if (!navigator.geolocation){
    output.innerHTML = "<p>Geolocation is not supported by your browser</p>";
    return;
  }

  function success(position) {
    var latitude  = position.coords.latitude;
    var longitude = position.coords.longitude;
    var url = "https://fcc-weather-api.glitch.me/api/current?lat=" + latitude + "&lon=" + longitude;
    $.getJSON( url, function(data) {
    output.innerHTML = data.weather[0].main;
    var elem = document.createElement("img");
    elem.src = data.weather[0].icon;
    document.getElementById("icon").appendChild(elem);
    var myTemp = data.main.temp 
    myTemp = Math.round(myTemp);
    temperature.innerHTML = myTemp + " C";
    });
  }

  function error() {
    output.innerHTML = "Unable to retrieve your location";
  }

  navigator.geolocation.getCurrentPosition(success, error);
}

function toggleUnits() {
  var getStr = document.getElementById("temperature");
  var tempStr = getStr.innerHTML
  var tempNum = tempStr.slice(0, -2);
  var tempInt = parseInt(tempNum, 10);
  var tempUnits = tempStr.slice(-1);
  if(tempUnits == "C") {
    tempInt = (tempInt * 1.8) + 32;
    tempInt = Math.round(tempInt);
    temperature.innerHTML = tempInt + " F";
  }
  else {
    tempInt = (tempInt - 32) * (5/9);
    tempInt = Math.round(tempInt);
    temperature.innerHTML = tempInt + " C";
  }
}