How do you invoke a function from within another function in AngularJS?

Question

How do you invoke a function from within another function in AngularJS?

I'm facing an issue with a function that needs to be called every time a page is loaded. I attempted to achieve this by using the following code:

        callFunction();
        function callFunction(){
           $scope.onClickModel();
        }
        $scope.onClickModel = function (data) {
           alert('Hi')
        };

The problem arises when the code is executed, as an error occurs at line 3 stating that $scope.onClickModel(); is not recognized as a function. Any insight on what could be causing this error would be greatly appreciated. Thanks in advance.

javascript angularjs mean-stack

Answer 1

Answer №1

Rearrange the sequence of your functions

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.onClickModel = function() {
    alert('Hi');
  };
  
  callFunction();

  function callFunction() {
    $scope.onClickModel();
  }

});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
</div>

Answer 2

Rearrange the sequence of your functions

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
  $scope.onClickModel = function() {
    alert('Hi');
  };
  
  callFunction();

  function callFunction() {
    $scope.onClickModel();
  }

});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
</div>

Answer 3

Answer №2

Make sure to always declare functions before using them in your code.

$scope.onHoverAction = function (data) {
   console.log('Hello')
};

function executeAction(){
 $scope.onHoverAction();
}

executeAction();

Answer 4

Make sure to always declare functions before using them in your code.

$scope.onHoverAction = function (data) {
   console.log('Hello')
};

function executeAction(){
 $scope.onHoverAction();
}

executeAction();

Answer 5

Answer №3

Follow these instructions and make sure to pass the parameter correctly when calling the function.

    $scope.onClickModel = function (data) {
       alert('Hello')
    };
    function executeFunction(){
     $scope.onClickModel("PassedData");
    }       
   executeFunction();

Answer 6

Follow these instructions and make sure to pass the parameter correctly when calling the function.

    $scope.onClickModel = function (data) {
       alert('Hello')
    };
    function executeFunction(){
     $scope.onClickModel("PassedData");
    }       
   executeFunction();

How do you invoke a function from within another function in AngularJS?

Answer №1

Answer №2

Answer №3

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