AngularJS Filters
In AngularJS, filters are used to format data.They can be clubbed in expression or directives using pipe (|) character. The following list shows the commonly used filters.
Following is a list of filters used for transforming data.
- uppercase converts a text to upper case text.
- lowercase converts a text to lower case text.
- currency formats text in a currency format.
- filter filter the array to a subset of it based on provided criteria.
- orderby orders the array based on provided criteria.
<head>
<title>AngularJS filters</title>
</head>
<script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js">
</script>
<body>
<h2>Sample Application</h2>
<div ng-app = "mainApp" ng-controller = "studentController">
<table border = "0">
<tr>
<td>Enter first name:</td>
<td><input type = "text" ng-model = "student.firstName"></td>
</tr>
<tr>
<td>Enter last name: </td>
<td><input type = "text" ng-model = "student.lastName"></td>
</tr>
<tr>
<td>Enter fees: </td>
<td><input type = "text" ng-model = "student.fees"></td>
</tr>
<tr>
<td>Enter subject: </td>
<td><input type = "text" ng-model = "subjectName"></td>
</tr>
</table>
<br>
<table border = "0">
<tr>
<td>Name in Upper Case:</td><td>{{student.fullName() | uppercase}}</td>
</tr>
<tr>
<td>Name in Lower Case: </td><td>{{student.fullName() | lowercase}}</td>
</tr>
<tr>
<td>fees:</td><td>{{student.fees | currency}}
</td>
</tr>
<tr>
<td>Subject:
<td>
<ul>
<li ng-repeat = "subject in student.subjects | filter: subjectName |orderBy:'marks'">
{{ subject.name + ', marks:' + subject.marks }}
</li>
</ul>
</td>
</tr>
</table>
</div>
<script>
var mainApp = angular.module("mainApp", []);
mainApp.controller('studentController', function($scope) {
$scope.student = {
firstName: "Mahesh",
lastName: "Parashar",
fees:500,
subjects:[
{name:'Physics',marks:70},
{name:'Chemistry',marks:80},
{name:'Math',marks:65}
],
fullName: function() {
var studentObject;
studentObject = $scope.student;
return studentObject.firstName + " " + studentObject.lastName;
}
};
});
</script>
</body>
</html>