From: Chad Perrin <code@...>
Date: 2011-07-28T06:29:05+09:00
Subject: Re: How do we read this line of code?

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On Thu, Jul 28, 2011 at 05:19:58AM +0900, Ryan Davis wrote:
>=20
> On Jul 27, 2011, at 11:53 , Chad Perrin wrote:
>=20
> > On Thu, Jul 28, 2011 at 03:24:08AM +0900, SW Engineer wrote:
> >> If we have the following line of Ruby code:
> >>=20
> >> @x.each do |x|
> >>=20
> >> - What does |x| represent here?
> >=20
> > It's an argument supplied to the block that follows.  In this case, the
> > argument is an element of @x passed to the block.
> >=20
> >=20
> >> - How do we read the line (i.e; in English)?
> >=20
> > I'd probably read it as something like:
> >=20
> >    For EACH element X of INSTANCE VARIABLE X, DO . . .
>=20
> It is not an instance variable.

Since when is @x not an instance variable?

--=20
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]

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