Error: [ng:areq] Argument 'ControllerName' is not a function, got undefined

3
votes

In app.js I have:

(function(){
    var app = angular.module("myApp", []);
})();

in process.js which is included after app.js I have:

(function(){
    app.controller('ProcessController', ['$http', function($http){
        this.something = "Test"
    }]);
});

and in my HTML file I have a div

<html class="no-js" lang="en" ng-app="myApp">
...
   <div class="row" ng-controller="ProcessController">

This is throwing an error in my console:

Error: [ng:areq] Argument 'ProcessController' is not a function, got undefined

I'm pretty new to angular and have never used multiple files like this before. What am I doing wrong?

4
javascriptangularjsangularjs-controller
You need to put var app = angular.module("myApp"); in the process.js before the app.controller(...). - Shaohao
@ShaohaoLin shouldn't app be available from the file included before hand? The error isn't complaining that app doesn't exist. - Deekor

4 Answers

5
votes

Use angular.module("myApp") inside other JS file & don't forget to call function which will make sense to have IIFE pattern, which will help you to make ProcessController controller available.

Code

(function(){
  angular.module("myApp")
    .controller('ProcessController', ['$http', function($http){
        this.something = "Test"
    }]);
})(); //<-- () function should get called to self execute it.
2
votes

Change your process.js to:

(function(){
    var app = angular.module("myApp");
    app.controller('ProcessController', ['$http', function($http){
        this.something = "Test"
    }]);
})();

Also consider to use the syntax: ng-controller="ProcessController as process" in order to have access to this.something varialble after in your template {{ process.something }}.

1
votes

At the top of your app.js

var app = angular.module('myApp', ['myApp.controllers']);

At the top of your processor.js

var app = angular.module('myApp.controllers', []);
0
votes

'use strict' ; Defines that JavaScript code should be executed in "strict mode". so it needs declaration first then definition . So in case you have declared the module added in app.js & added js to the index.html but not injected in the mainApp module , you have chances for ngareq ControllerName is not a function or undefined. Hope so it would help .