javascript - Can I use AngularJS's $q outside an Angular component? - Stack Overflow

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I am writing a browser app, and I have a file that creates an object and initializes it. The app is written in AngularJS, but the file in question is plain Javascript, outside the Angular ecosystem.

I want to use promises in that file, but since Angular contains an an implementation of Q, I'd rather just use that than bring in another library.

I am also using RequireJS.

So, is there a way to use $q in a non-Angular file?

I am writing a browser app, and I have a file that creates an object and initializes it. The app is written in AngularJS, but the file in question is plain Javascript, outside the Angular ecosystem.

I want to use promises in that file, but since Angular contains an an implementation of Q, I'd rather just use that than bring in another library.

I am also using RequireJS.

So, is there a way to use $q in a non-Angular file?

• javascript
• angularjs
• requirejs
• angular-promise

Share Improve this question Follow asked Sep 15, 2014 at 23:09 FrontierPsychoFrontierPsycho 74399 silver badges2525 bronze badges 1

• i don't see why not- just pass it at the appropriate time. – Daniel A. White Commented Sep 15, 2014 at 23:15

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1 Answer 1

Sorted by: Reset to default 9

You can do this by using the angular.injector() method which returns an $injector function that can be injected with dependencies that you need (e.g. $http, $q) through its invoke() method.

DEMO

Something like this:

angular.injector(['ng']).invoke(['$q', function($q) {

  $q.when('hello world').then(function(message) {
    window.alert(message);
  });

}]);

Note that the array passed to angular.injector() is a list of modules, I included the ng module because that is where the AngularJS core dependencies are located.

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