JS forEach Loop

 
<!DOCTYPE html>
<html>
<head>
  <title>JavaScript</title>
  <script>
    var a = ["Rahul","Karan","Aman","Neha"];
	a.forEach(function(value,index) {
		document.write(index + " : " + value + "<br>");  
	})
  </script>
</head>
<body>
</body>
</html>
 
<!DOCTYPE html>
<html>
<head>
  <title>JavaScript</title>
  <script>
    var a = ["Rahul","Karan","Aman","Neha"];
    a.forEach(loop);
    function loop(value, index){
      document.write(index + " : " + value + "<br>");
    }
  </script>
</head>
<body>
</body>
</html>