Angular.IsNumber

<html>
  <head>
    <link rel="stylesheet" href="style.css">
  </head>

  <body ng-app="app" ng-controller="BaseController">
    <a href="index.html"><h1>{{title}}</h1></a>
    
    5 :: {{isValidNumber(5)}}<br/><br/>
    '6' :: {{isValidNumber('6')}}<br/><br/>
    [8] :: {{isValidNumber([8])}}<br/><br/>
    NAN :: {{isValidNumber(NAN)}}<br/><br/>
    Undefined :: {{isValidNumber(Undefined)}}<br/><br/>
    NULL :: {{isValidNumber(null)}}<br/><br/>
    
    <br/><br/><br/><br/><br/>
    
    
    <!-- Add Jasmine -->
    <script data-require="jasmine@*" data-semver="2.0.0" src="//cdn.jsdelivr.net/jasmine/2.0.0/jasmine.js"></script>
    <!-- Jasmine html & css for reporting -->
    <link data-require="jasmine@*" data-semver="2.0.0" rel="stylesheet" href="//cdn.jsdelivr.net/jasmine/2.0.0/jasmine.css" />
    <script data-require="jasmine@*" data-semver="2.0.0" src="//cdn.jsdelivr.net/jasmine/2.0.0/jasmine-html.js"></script>
    <script data-require="jasmine@*" data-semver="2.0.0" src="//cdn.jsdelivr.net/jasmine/2.0.0/boot.js"></script>
    <!-- Add AngularJS -->
    <script data-require="angular.js@1.2.25" data-semver="1.2.25" src="https://code.angularjs.org/1.2.25/angular.js"></script>
    <!-- AngularJS testing helpers -->
    <script data-require="angular-mocks@*" data-semver="1.2.16" src="https://code.angularjs.org/1.2.16/angular-mocks.js"></script>
    
    <script src="script.js"></script>
    <script src="spec.js"></script>
  </body>

</html>

// Code goes here

var app = angular.module("app", []);

app.controller("BaseController", function($scope) {
  $scope.title = "Angular.IsNumber";
  
  $scope.isValidNumber = function(value) {
    return angular.isNumber(value);
  };
});

/* Styles go here */


Angular.IsNumber

To find whether the input value is number or not.

Syntax:
angular.isNumber(value);

describe('Testing BaseController', function() {
  var $scope = null;
  var ctrl = null;
  
  //you need to indicate your module in a test
  beforeEach(module('app'));
  
  
  beforeEach(inject(function($rootScope, $controller) {
    $scope = $rootScope.$new();
    ctrl = $controller('BaseController', {
      $scope: $scope
    });
  }));

  it('should set title', function() {
    expect($scope.title).toEqual('Angular.IsNumber');
  });
  
  it('evaluate isNumber', function() {
    expect($scope.isValidNumber(5)).toBe(true);
    expect($scope.isValidNumber([5])).toBe(false);
    expect($scope.isValidNumber('6')).toBe(false);
  });
  
});