Use underscore inside Angular controllers

When you include Underscore, it attaches itself to the window object, and so is available globally.

So you can use it from Angular code as-is.

You can also wrap it up in a service or a factory, if you'd like it to be injected:

var underscore = angular.module('underscore', []);underscore.factory('_', ['$window', function($window) {  return $window._; // assumes underscore has already been loaded on the page}]);

And then you can ask for the _ in your app's module:

// Declare it as a dependency of your modulevar app = angular.module('app', ['underscore']);// And then inject it where you need itapp.controller('Ctrl', function($scope, _) {  // do stuff});

I have implemented @satchmorun's suggestion here:https://github.com/andresesfm/angular-underscore-module

To use it:

1. Make sure you have included underscore.js in your project

   <script src="bower_components/underscore/underscore.js">

2. Get it:

   bower install angular-underscore-module

3. Add angular-underscore-module.js to your main file (index.html)

   <script src="bower_components/angular-underscore-module/angular-underscore-module.js"></script>

4. Add the module as a dependency in your App definition

   var myapp = angular.module('MyApp', ['underscore'])

5. To use, add as an injected dependency to your Controller/Service and it is ready to use

   angular.module('MyApp').controller('MyCtrl', function ($scope, _) {...//Use underscore_.each(...);...

I use this:

var myapp = angular.module('myApp', [])  // allow DI for use in controllers, unit tests  .constant('_', window._)  // use in views, ng-repeat="x in _.range(3)"  .run(function ($rootScope) {     $rootScope._ = window._;  });

See https://github.com/angular/angular.js/wiki/Understanding-Dependency-Injection about halfway for some more info on run.