CoffeeScript function created in app/assets/javascript not found

Question

In my CoffeeScript file, clients.js.coffee,

myFunction = (variable) ->

I created a function in CoffeeScript in app/assets/javascript. But when I try to call that function, the console shows me an error saying function not found.

I check the source of the page and it shows that the script is loaded:

<script src="/assets/clients.js?body=1" type="text/javascript"></script>

This is what was found inside the script source:

(function() {
  var myFunction;

  myFunction = function(variable) {}
}).call(this);

Any idea what am I missing? What should I do to call the function?

You have created a function in an anonymous function scope. So it's not visible outside — zerkms, Jul 13 '12 at 04:21
possible duplicate of [Why is this happening to my CoffeeScript?](http://stackoverflow.com/questions/6481986/why-is-this-happening-to-my-coffeescript) — Jordan Running, Jul 13 '12 at 04:24

score 59 · Accepted Answer · answered Jul 14 '12 at 17:32

59

To make it accessible from outside, all you need to do is add an '@' in front. This will attach the function to the window object.

@myFunction = (variable) ->

answered Jul 14 '12 at 17:32

SMathew

3,993
1
18
10

score 7 · Answer 2 · answered Jul 13 '12 at 04:34

7

Bind it to the window

myFunction = (variable) ->
  alert('zzzzzzzz')

window.myFunction = myFunction

answered Jul 13 '12 at 04:34

house9

20,359
8
55
61

Also here is a screencast which might be helpful - http://house9.blogspot.com/2011/05/rails-31-javascript-execution.html – house9 Jul 13 '12 at 04:35

CoffeeScript function created in app/assets/javascript not found

2 Answers2