How to create separate AngularJS controller files

Question

I have all of my AngularJS controllers in one file  controllers js   This file is structured as follows   angular module  myApp controllers          controller  Ctrl1      scope     http   function  scope   http                 controller  Ctrl2      scope     http   function  scope   http            What I d like to do is put Ctrl1 and Ctrl2 into separate files   I would then include both files in my index html  but how should that be structured   I tried doing some thing like this and it throws an error in the web browser console saying it can t find my controllers   Any hints   I searched StackOverflow and found this similar question - however  this syntax is using a different framework  CoffeeScript  on top of Angular  and so I haven t been able to follow     AngularJS  How do I create controllers in multiple files

User · Answer

Using the angular module API with an array at the end will tell angular to create a new module   myApp js     It is like saying  create a new module  angular module  myApp controllers           Notice the empty array at the end here   Using it without the array is actually a getter function  So to seperate your controllers  you can do   Ctrl1 js     It is just like saying  get this module and create a controller  angular module  myApp controllers   controller  Ctrlr1      scope     http   function  scope   http          Ctrl2 js  angular module  myApp controllers   controller  Ctrlr2      scope     http   function  scope   http          During your javascript imports  just make sure myApp js is after AngularJS but before any controllers   services   etc   otherwise angular won t be able to initialize your controllers

User · Answer

What about this solution  Modules and Controllers in Files  at the end of the page  It works with multiple controllers  directives and so on   app js  var app   angular module  myApp     deps       myCtrl js  app controller  myCtrl   function  scope            html   lt script src  app js  gt  lt  script gt   lt script src  myCtrl js  gt  lt  script gt   lt div ng-app  myApp  ng-controller  myCtrl  gt    Google has also a Best Practice Recommendations for Angular App Structure I really like to group by context  Not all the html in one folder  but for example all files for login  html  css  app js controller js and so on   So if I work on a module  all the directives are easier to find

User · Answer

Although both answers are technically correct  I want to introduce a different syntax choice for this answer  This imho makes it easier to read what s going on with injection  differentiate between etc   File One     Create the module that deals with controllers angular module  myApp controllers          File Two     Here we get the module we created in file one angular module  myApp controllers       We are adding a function called Ctrl1    to the module we got in the line above  controller  Ctrl1   Ctrl1       Inject my dependencies Ctrl1  inject      scope     http        Now create our controller function with all necessary logic function Ctrl1  scope   http         Logic here     File Three     Here we get the module we created in file one angular module  myApp controllers       We are adding a function called Ctrl2    to the module we got in the line above  controller  Ctrl2   Ctrl2       Inject my dependencies Ctrl2  inject      scope     http        Now create our controller function with all necessary logic function Ctrl2  scope   http         Logic here

User · Answer

File one   angular module  myApp controllers          File two   angular module  myApp controllers   controller  Ctrl1      scope     http   function  scope   http           File three   angular module  myApp controllers   controller  Ctrl2      scope     http   function  scope   http           Include in that order  I recommend 3 files so the module declaration is on its own     As for folder structure there are many many many opinions on the subject  but these two are pretty good  https   github com angular angular-seed  http   briantford com blog huuuuuge-angular-apps html

User · Answer

For brevity  here s an ES2015 sample that doesn t rely on global variables      controllers example-controller js  export const ExampleControllerName    ExampleController  export const ExampleController     scope    gt         something           controllers another-controller js  export const AnotherControllerName    AnotherController  export const AnotherController     scope    gt         functionality           app js  import angular from  angular    import     ExampleControllerName    ExampleController        controllers example-controller    import     AnotherControllerName    AnotherController        controllers another-controller    angular module  myApp       deps         controller ExampleControllerName  ExampleController     controller AnotherControllerName  AnotherController

User · Answer

Not so graceful  but the very much simple in implementation solution - using global variable    In the  first  file    window myApp   angular module  myApp              in the  second     third   etc    myApp controller  MyController   function  scope

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