angularjs age calculation from a given date

<!DOCTYPE html>
	
<html>

 
	 <head>
      

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js"></script>       
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular-animate.js"></script>       
<style>
</style>
<script>

var app = angular.module("app", []);
app.controller('Ctrl', function ($scope) {
 
   $scope.d = new Date();
   $scope.d.setFullYear(1994, 11, 14); //jan[0-11] 2020 14th
   
   
   $scope.calculateAge = function calculateAge(date) { // birthday is a date
    var now=new Date();
   
    var nowMonth = now.getUTCMonth() + 1; //months from 1-12
    var nowDay   = now.getUTCDate();
    var nowYear  = now.getUTCFullYear();
    
    
    var myMonth_birth=date.getUTCMonth();
    var myDay_birth = date.getUTCDate();
    var myYear_birth = date.getUTCFullYear();
    
    var birthAge = nowYear - myYear_birth - 1;//not ur age yet
    
    if( nowMonth>=myMonth_birth) //means ur birth month is now or passed
        if(nowDay >= myDay_birth)//check if the day is now or passed
         birthAge += 1 ;
         
    return birthAge;
   }
   
});

    </script>
  </head>

  
      <body ng-app="app" ng-controller='Ctrl'> 
Birthdate: {{d|date}}<br/>
Age: {{calculateAge(d)}}<br/>
     </body>


</html>

// Code goes here

/* Styles go here */