javascript - Call external js file function in Angular js controller -

i have external js file has more functions.

i need call these functions angular controller.

for example: external.js

... ... function fun() {   ...   ... } ... ... 

controller: acccountcontroller.js

myapp.controller('addaccountcontroller',function ($scope,addaccountloginservices,$location,localstorageservice,$compile,toaster){    ....    ....     $scope.getloginform = function(siteid,name) {              ...             ...             fun(); // function external.js file    });     ...    ...  }); 

i have imported external.js before acccountcontroller.js. doesnt calling function. , have not console error this.

how achieve this... in advance.

edit: gave wrong answer, bad. following example works.

your external file should this:

var dosomething = (function () {   "use strict";    return {       test: (function () {         return 'test';       }()),       test2: (function () {         return console.log('test 2');       })    }; }()); 

and in controller call scripts function:

console.log(dosomething.test); 

or

dosomething.test2(); 

i learned too, ;)