From: Ryan Davis <ryand-ruby@...>
Date: 2011-07-28T05:19:58+09:00
Subject: Re: How do we read this line of code?


On Jul 27, 2011, at 11:53 , Chad Perrin wrote:

> On Thu, Jul 28, 2011 at 03:24:08AM +0900, SW Engineer wrote:
>> If we have the following line of Ruby code:
>> 
>> @x.each do |x|
>> 
>> - What does |x| represent here?
> 
> It's an argument supplied to the block that follows.  In this case, the
> argument is an element of @x passed to the block.
> 
> 
>> - How do we read the line (i.e; in English)?
> 
> I'd probably read it as something like:
> 
>    For EACH element X of INSTANCE VARIABLE X, DO . . .

It is not an instance variable.