From: "David A. Black" <dblack@...>
Date: 2008-07-16T21:34:34+09:00
Subject: Re: New to Ruby. Specific syntax question.

Hi --

On Wed, 16 Jul 2008, Cole Mister wrote:

> > take an example:
>> def fib_up_to(max)
>> ....
>> yield t
>> ...
>> end
>>
>> fib_up_to(1000) {|f| print f}
>>
>> the f in block is the t in each step
>
> Okay.  That makes sense.
>
> The block is pretty much defining the yield statement?
>
> It'll make more and more sense the farther I get into the book I hope.

The block is a snippet of executable code. The yield command executes
it; in other words, by supplying the code block, you're giving the
method some code that it can execute. You call the method, and the
method calls you back :-)


David

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