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JavaScript AngularJS Basics (1.x) Controllers and Scope Creating a Controller

Christopher Stuart
.a{fill-rule:evenodd;}techdegree seal-36
Christopher Stuart
Full Stack JavaScript Techdegree Graduate 27,771 Points

Failed to instantiate module todoListApp due to: Error: [$injector:nomod] Module 'todoListApp' is not available

here's my app.js

angular.module("todoListApp", [])
.controller('mainCtrl', function($scope){
  $scope.helloworld = function() {
   console.log('Hello there! This is the helloworld controller function, in the mainCtrl');

and index.html

<!doctype html>
<html lang="en">
  <link href='https://fonts.googleapis.com/css?family=Varela+Round' rel='stylesheet' type='text/css'>
  <link href='styles/main.css' rel='stylesheet' type="text/css">
<body ng-app="todoListApp">
  <h1>My TODOs</h1>
  <div ng-controller="mainCtrl" class="list">
    <input type="checkbox"/>
      <label class="editing-label">My editing level</label>
      <input class="editing-label" type="text"/>
      <div class="actions">
        <a href="">edit</a>
        <a href="" ng-click="helloWorld()">save</a>
        <a href="" class="delete">delete</a>

  <script src="vendor/angular.js" type="text/javascript"></script>
  <script src="scripts/app.js" type="text/javascript"></script>

Kresimir Fijacko
Kresimir Fijacko
6,025 Points

It looks like typo mistake - names should be in camelCase:

take a look at app.js :

$scope.helloworld = function() { 

this should be

$scope.helloWorld = function () {

1 Answer

Justin Jones
Justin Jones
12,868 Points

In your $scope.helloWorld function, you're missing the necessary semi colon at the end of it :).

$scope.helloworld = function() { console.log('Hello there! This is the helloworld controller function, in the mainCtrl'); }; <----------