Why are my coffeescript functions not available from my HTML code ?

Question

I am using rails-backbone, coffeescript gems in my rails 3.2.6 project.

square = (x) -> x * x alert square(5)

this is the blog.js.coffee script file it produces:

(function() { var square; square = function(x) {return x * x;}; alert(square(5));

I need to call the square() method in an other view file.

How can I call that? Is there any thing wrong I am doing?

edi9999 · Accepted Answer · 2013-07-25T08:14:28.393

2

All your code in Coffeescript will be inside a self-invoking anonymous function.

To call it outside a file, just write:

window.square = (x) -> x * x

alert(square(5)) in an other function

The best you can do to not overuse window is a App object that will contain all your variables.

window.App={}
window.App.square=  (x) -> x * x

and then alert(App.square(5))

edited Jul 25 '13 at 08:14

answered Jul 15 '13 at 06:39

edi9999

What is Self-anonymous function? – Ponnusamy Jul 25 '13 at 04:13
A self invoking anonymous function is a function that has no name (**hence anonymous**) and that calls itself. It is used to protect the code from being accessed from the outside of the function. Here's a specifi question about this. – edi9999 Jul 25 '13 at 08:14

score -1 · Answer 2 · answered Jul 15 '13 at 06:39

-1

Call it like a regular JavaScript function:

<script>    
  square(5)
</script>

answered Jul 15 '13 at 06:39

Ryan Bigg

1

This won't work as there won't be a `square` function in scope. – mu is too short Jul 15 '13 at 15:31

2 Answers2