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<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>  
<body ng-app="">
<p>Everything you write in the input field will also be the content of the heading below:</p>
<input ng-model="myInput">
<p>The content of the input field is;</p>
<h1>{{myInput}}</h1>
</body>
</html>