URL link not redirecting properly in Angularjs

I have a link in my announce.obj. But when I clicked it, it's giving me the wrong url (http://www./) in the browser.

html

<p>
  <a ng-href="{{data.links}}" target="_blank">{{data.links}}</a>
</p>

data.links value

www.google.com

Should I add an https when saving my links in the db or something ?

Solution

Try this like $scope.myVar = 'https://www.w3schools.com';:

var app = angular.module('myAngularApp', []);

var myController = app.controller('myController', MyController);

myController.$inject = ['$scope'];

function MyController($scope){

    $scope.myVar = 'https://www.w3schools.com';

}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<html>

<body ng-app="myAngularApp">

<div ng-controller = "myController">
<h1>Tutorials</h1>
<p>Go to <a ng-href="{{myVar}}">{{myVar}}</a> to learn!</p>
</div>

<p>This example could use the original href attribute, but in AngularJS, the ng-href attribute is safer.</p>

</body>
</html>