How do I get an address latitude-longitude using HTML5 Geolocation or Google API?

In order to get latitude and longitude using an HTML5 Geolocation or any Google API, we need to add JavaScript for this. 

The script is as follows −

if (navigator.geolocation) {

   /*  If current position is obtained then there is success otherwise there is failure.
   On failure, separate error message is shown  */    
   navigator.geolocation.getCurrentPosition(successFunc, errorFunc);
}  else {    
   alert(‘Geolocation is not enabled in your browser. Please use a latest browser to supports it.');
}