From: "Jan E." <lists@...>
Date: 2012-09-28T20:55:28+09:00
Subject: Re: Suma de elementos de un array, problema

Hi,

This isn't the spanish Ruby group, so use English, please.

The error message is telling you that you cannot use "return" in this 
context (you're not in a method). I'm not even sure what you want. 
Return from the "each" method? Jump to the next element? As far as I can 
tell, you don't need any of this, so just delete the "return sumador".

In fact, your code is quite complicated for this simple task. Do you 
really need a method just to add two numbers?

I'd simply do this:

vect = [1, 2, 3, 4, 5]
sum = 0
vect.each do |number|
  sum += number
end

That's it. Ruby also has a method for this kind of operation: 
Enumerable#inject
http://ruby-doc.org/core-1.9.3/Enumerable.html#method-i-inject

So you could boil it down to:

vect = [1, 2, 3, 4, 5]
vect.reduce :+

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