local and global scope coffeescript [duplicate]

Question

With javascript:

function myFunc() {
    var x = 5;
};

console.log(x);

I get //undefined and with:

function myFunc() {
        x = 5;
    };

    console.log(x);

I get 5

With coffeescript this variable var x = 5; is x = 5.

For example this is possible?:

myFunc ->
  window.x = 5;

    console.log window.x

Instead of:

myFunc ->
 x = 5;

 console.log x

My question is How I can differentiate a global variable of a local variable with CoffeeScript?

Answer 1

for global scope you should use functions like this:

myFunc = =>
  @x = 5;

myFunc()

console.log x

example of generated code: http://jsfiddle.net/Upward/wZ7w4/