Lowercase filter converts a text to lower case text.

In below example, we've added lowercase filter to an expression using pipe character. Here we've added lowercase filter to print student name in all lowercase 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() | lowercase}}