JSFiddle - React, Tailwind, and code Playground

geolocation_watchPosition

by iamya

HTML

<!DOCTYPE html>
<html>
<body>
<p id="demo">點選這個按鈕，找到妳/你的男/女朋友：</p>
<button onclick="getLocation()">點我可以持續更新位置</button>
<script>
var x=document.getElementById("demo");
function getLocation()
  {
  if (navigator.geolocation)
    {
    navigator.geolocation.watchPosition(showPosition);
    }
  else{x.innerHTML="Geolocation is not supported by this browser.";}
  }
function showPosition(position)
  {
  x.innerHTML="Latitude: " + position.coords.latitude + 
  "<br />Longitude: " + position.coords.longitude;    
  }
</script>
</body>
</html>