<!DOCTYPE html>
<html>
<script src="http://www.sargonco.com/Uploads/Public/article/webdistut/javascript/angular.min.js"></script>
<body>

<div ng-app="" ng-init="firstName='John'">

<p>Name: <input type="text" ng-model="firstName"></p>
<p>You wrote: {{ firstName }}</p>

</div>

</body>
</html>

Input something in the input box:

Name:

You wrote: {{ firstName }}