Day51Callbackfunc.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Day 51</title>
</head>
<body>
    <script>
        function higher(note,callback){// higher order function taking callback function as a input
            let name='ponmani';
            callback('ponmani');
        }

        higher('welcome',function(name){
             console.log(name); 
      })

      function Firstname(firsname,callback)// callback hell
      {
          console.log('inside the firstname');
          callback(firsname,thirdname);
      }

      function secondname(secondname,callback){
          console.log('inside the secondname');
          callback(secondname);
      }
   
      function thirdname(thirdname){
          console.log('inside the thirdname',thirdname);
      }


      Firstname('ponmani',secondname);
  
  
    </script>
</body>
</html>