AngularJS expressions are written inside double braces: {{ expression }}.
Expressions are used to bind application data to html. Expressions behaves in same way as ng-bind directives. AngularJS application expressions are pure javascript expressions and outputs the data where they are used. Here is the example for to get roll number from an object.,
AngularJS Expressions
<!DOCTYPE html>
<html>
<script src=js/angular.js”></script>
<body>
<div ng-app=””>
<p>Roll No: {{student.rollno}}</p>
</div>
</body>
</html>
Result : Roll No: 1024
