AngularJS API

API is the abbreviation for Application Programming Interface (API).

AngularJS global API

AngularJS global API is a set of global JavaScript functions used to perform common tasks, such as:

  • Compare objects
  • Iterate over objects
  • Convert data

Global API functions can be accessed by using the angular object.

Below is a list of some commonly used API functions:

API Description
angular.lowercase() Convert the string to lowercase.
angular.uppercase() Convert the string to uppercase.
angular.isString() If the reference is a string, it returns true.
angular.isNumber() If the reference is a number, it returns true.

angular.lowercase() example

<div ng-app="myApp" ng-controller="myCtrl">
  <p>{{ x1 }}</p>
  <p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.x1 = "BILL";
  $scope.x2 = angular.lowercase($scope.x1);
});
</script>

Try It Yourself

angular.uppercase() example

<div ng-app="myApp" ng-controller="myCtrl">
  <p>{{ x1 }}</p>
  <p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.x1 = "Bill";
  $scope.x2 = angular.uppercase($scope.x1);
});
</script>

Try It Yourself

angular.isString() Example

<div ng-app="myApp" ng-controller="myCtrl">
  <p>{{ x1 }}</p>
  <p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.x1 = "BILL";
  $scope.x2 = angular.isString($scope.x1);
});
</script>

Try It Yourself

angular.isNumber() Example

<div ng-app="myApp" ng-controller="myCtrl">
  <p>{{ x1 }}</p>
  <p>{{ x2 }}</p>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.x1 = "BILL";
  $scope.x2 = angular.isNumber($scope.x1);
});
</script>

Try It Yourself