AngularJS angular.isFunction() Function Last Updated : 06 Sep, 2022 Summarize Suggest changes Share Like Article Like Report The angular.isFunction() Function in AngularJS is used to determine if the parameter inside isFunction function is a function or not. It returns true if the reference is a function else false. Syntax: angular.isFunction(value);Parameter: value: This parameter specifies whether the passed value is a function or not.Return Value: It returns true if the value passed is a function else false. Example 1: This example describes the basic usage of angular.isFunction() Function in AngularJS. HTML <!DOCTYPE html> <html> <head> <script src= "//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"> </script> <title> angular.isFunction() </title> </head> <body ng-app="app" style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>angular.isFunction()</h2> <div ng-controller="geek"> <b>Input1: </b> <span> <code> obj = [{ name: "Abc"}, { name: "Xyz"}]; </code> </span><br> <b>IsFunction: </b> {{isFunction1}}<br /> <br><br> <b>Input2: </b> <code> var Add = function () { return null; }; </code><br> <b>IsFunction:</b> {{isFunction2}} </div> <script> var app = angular.module("app", []); app.controller('geek', ['$scope', function($scope) { var obj = [{ name: "Abc" }, { name: "Xyz" }]; var Add = function() { return null; }; $scope.isFunction1 = angular.isFunction(obj); $scope.isFunction2 = angular.isFunction(Add); }]); </script> </body> </html> Output: Example 2: This is another example that describes the usage of angular.isFunction() Function in AngularJS. HTML <!DOCTYPE html> <html> <head> <script src= "//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"> </script> <title> angular.isFunction() </title> </head> <body ng-app="app" style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>angular.isFunction()</h2> <div ng-controller="geek"> <b>Input1: </b> <span> <code> var arr = ['DSA','Algorithms','Web tech']; </code> </span><br> <b>IsFunction: </b> {{isFunction1}}<br /> <br><br> <b>Input2: </b> <code> Add = () =>{ return null; }; </code><br> <b>IsFunction:</b> {{isFunction2}} </div> <script> var app = angular.module("app", []); app.controller('geek', ['$scope', function($scope) { var arr = ['DSA', 'Algorithms', 'Web tech']; Add = () => { return null; }; $scope.isFunction1 = angular.isFunction(arr); $scope.isFunction2 = angular.isFunction(Add); }]); </script> </body> </html> Output: Advertise with us Next Article AngularJS angular.isNumber() Function V Vishal Chaudhary 2 Follow Similar Reads AngularJS BasicsAngularJS TutorialAngularJS is a free and open-source JavaScript framework that helps developers build modern web applications. 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