javascript - AngularJS not recognizing controller - Stack Overflow|Programmer puzzle solving

So I already know when I see the answer I'm going to feel really dumb, but I'm working through the AngularJS tutorials at egghead.io. When I do this:

<!DOCTYPE html>
<html>
    <head>
        <title>AngularJS Tutorials</title>
        <link rel="stylesheet" href="/foundation/stylesheets/foundation.min.css">
        <script src="js/main.js"></script>
        <script src="lib/angular/angular.js"></script>
    </body>
    </head>
    <body>
        <div ng-app="myApp">

            <div ng-controller="FirstCtrl">
                <input type="text" ng-model="data.message">
                <h1>{{ data.message }}</h1>
            </div>

            <div ng-controller="SecondCtrl">
                <input type="text" ng-model="data.message">
                <h1>{{ data.message }}</h1>
            </div>
        </div>  
</html>

with my JavaScript file as so (named main.js):

var myApp = angular.module('myApp', []);
myApp.factory('Data', function() {
    return { message: "I'm data from a service"}
})

function FirstCtrl($scope, Data) {
    $scope.data = Data;
}

function SecondCtrl($scope, Data) {
    $scope.data = Data;
}

My {{ data.message }} isn't recognized as an AngularJS binding (i.e. in the page it shows up as
{{ data.message }} instead of "I'm data from a service"). But if I take all the JS code and put it into <script></script> tags directly in the HTML it works fine. Am I missing a reference or something? Haven't seemed to find this anywhere, likely because it's really basic.

So I already know when I see the answer I'm going to feel really dumb, but I'm working through the AngularJS tutorials at egghead.io. When I do this:

<!DOCTYPE html>
<html>
    <head>
        <title>AngularJS Tutorials</title>
        <link rel="stylesheet" href="/foundation/stylesheets/foundation.min.css">
        <script src="js/main.js"></script>
        <script src="lib/angular/angular.js"></script>
    </body>
    </head>
    <body>
        <div ng-app="myApp">

            <div ng-controller="FirstCtrl">
                <input type="text" ng-model="data.message">
                <h1>{{ data.message }}</h1>
            </div>

            <div ng-controller="SecondCtrl">
                <input type="text" ng-model="data.message">
                <h1>{{ data.message }}</h1>
            </div>
        </div>  
</html>

with my JavaScript file as so (named main.js):

var myApp = angular.module('myApp', []);
myApp.factory('Data', function() {
    return { message: "I'm data from a service"}
})

function FirstCtrl($scope, Data) {
    $scope.data = Data;
}

function SecondCtrl($scope, Data) {
    $scope.data = Data;
}

Share Improve this question edited Aug 5, 2013 at 22:53 iConnor 20.2k14 gold badges66 silver badges97 bronze badges asked Aug 5, 2013 at 22:50 Jordan Plahn 3754 silver badges12 bronze badges

As I said...I feel D-U-M-B. – Jordan Plahn Commented Aug 5, 2013 at 22:59

Add a ment |

3 Answers 3

Sorted by: Reset to default 2

I'm going to JUMP THE GUN and remend you switch these

<script src="js/main.js"></script>
<script src="lib/angular/angular.js"></script>

<script src="lib/angular/angular.js"></script>
<script src="js/main.js"></script>

If this works then that is because before you were trying to use angular when it wasn't event loaded.

Tip

Now, when I first started with javascript these sort of things used to happen to me a lot. The best thing for you to do is learn how to use the console it would have told you in the console something along the lines of cannot read property 'module' of undefined that meaning that angular is undefined and therefore not loaded.

Load Angular before your controllers, not after

switch between the lines:

<script src="js/main.js"></script>
<script src="lib/angular/angular.js"></script>

you need to run main.js after angular is loaded

Programmer puzzle solving

javascript - AngularJS not recognizing controller - Stack Overflow

3 Answers 3

Tip

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