$timeout not defined error in AngularJS app

Question

I have the following code:

app.factory('Position', ['$timeout', function() {

    var position = {
        latitude: 44,
        longitude: 26
    };

    console.log("Timeout started");

    $timeout(function() {
        position.latitude += 15;
        position.longitude += 15;
    }, 2000);

    return position;
}]);

And I get $timeout not defined in Javascript console. Am I not injecting the dependency of the service correctly ?

Only tangentially related: if you have a build process, especially one using Grunt, you should check out ngmin. It will make your injectors minification safe and remove the burden of double typing. You'll only need the function($timeout). — Ben Jacobs
– Ben Jacobs, Commented Sep 25, 2013 at 20:29

kubuntu · Accepted Answer · 2015-10-05 23:57:21Z

92

You did not inject $timeout. It should be as follows.

app.factory('Position', ['$timeout', function($timeout) {
    ...
}]);

Declaration this way ensures that services are correctly identified when your JavaScript code gets minified. For further information on how this helps minification, see A Note on Minification and Declaring AngularJS Modules For Minification

If minification is not in your plans (e.g for quick test), you can simply go with

app.factory('Position', function($timeout) {
    ...
});

edited Oct 5, 2015 at 23:57

answered Sep 25, 2013 at 15:42

kubuntu

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2 Comments

jcollum Over a year ago

I believe with the built in services (anything with a $) you can just put them in the function sig, you don't have to declare them in the dependencies. If you are only using $ services that is.

kubuntu Over a year ago

I think it is done this way for minification purposes docs.angularjs.org/tutorial/step_05

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