AngularJS angular.isNumber() Function

Last Updated : 08 Aug, 2022

The angular.isNumber() function in AngularJS is used to determine the parameter inside isNumber function is a number or not. It returns true if the reference is a number otherwise returns false.

Syntax:

angular.isNumber( value );

Parameter value:

value: It determines whether the entered value is a number or not.

Return Value: It returns a boolean value if the passed value is a number as true, otherwise returns false.

Example: This example illustrates the angular.isNumber() function in AngularJS, to check whether the entered value is a number or not.

HTML

<!DOCTYPE html> 
<html> 
<script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"> 
</script> 
  
<body> 
    <div ng-app="app" 
         ng-controller="gfgCtrl"
         style="text-align:center"> 
      <h1 style="color:green">GeeksforGeeks</h1> 
      <h2>angular.isNumber()</h2><br> 
        <b>Is {{ data1 }} a number?</b><br> 
        <b>{{ data2 }}</b>  
    </div> 
    <script> 
        var app = angular.module('app', []); 
        app.controller('gfgCtrl', function($scope) { 
            $scope.data1 = 26; 
            $scope.data2 = angular.isNumber($scope.data1); 
        }); 
    </script> 
</body> 
</html>

Output:

Example: This example uses angular.isNumber() function to determine whether the given input is a number or not.

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>angular.isNumber()</title> 
    <script src= 
"//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"> 
    </script> 
</head> 
  
<body ng-app="app" style="text-align:center"> 
    <h1 style="color:green">GeeksforGeeks</h1> 
    <h2>angular.isNumber()</h2> 
    <div ng-controller="geek">  
        <b>Input1: </b>  
        <span> 
            <code> 
                123 
            </code> 
        </span> 
        <br>  
        <b>IsNumber: </b>{{isNumber1}} 
        <br /><br><br>  
        <b>Input2: </b> 
            <code> 
                "geeksforgeeks" 
            </code> 
        <br> 
        <b>IsNumber:</b> {{isNumber2}} 
    </div> 
      
    <!-- Script to uses angular.isNumber() Function -->
    <script> 
        var app = angular.module("app", []); 
        app.controller('geek', ['$scope', function($scope) { 
            var obj1 = 123; 
            var obj2 = "geeksforgeeks"; 
            $scope.isNumber1 = angular.isNumber(obj1); 
            $scope.isNumber2 = angular.isNumber(obj2); 
        }]); 
    </script> 
</body> 
</html>