Uppercase filter converts a text to upper case text.

In below example, we've added uppercase filter to an expression using pipe character. Here we've added uppercase filter to print student name in all capital letters.

Enter first name:<input type = "text" ng-model = "student.firstName">

Enter last name: <input type = "text" ng-model = "student.lastName">

Name in Upper Case: {{student.fullName() | uppercase}}