Call external js file function in Angular js controller

Question

I have the external js file which has more functions.

I need to call these functions from angular controller.

For example: external.js

Answer 1

As mentioned by @nilsK, you define a self invoking function. And then reference to it via window object. For example -

(function functionName(){
    Do Something Here...
})();

And then,

window.functionName();

And if your are using AngularJS,

$window.functionName();