From: James Edward Gray II <james@...>
Date: 2006-01-07T13:47:01+09:00
Subject: Re: Iterator Fu Failing Me

On Jan 6, 2006, at 10:39 PM, Marcel Molina Jr. wrote:

> On Sat, Jan 07, 2006 at 01:36:30PM +0900, James Edward Gray II wrote:
>>   elements = tokens.map do |token|
>>     [ClassA, ClassB, ClassC].find { |kind| kind.parse?(token) }
>>   end
>>
>> Except that I want the return result of parse?(), instead of the
>> class that took it.
>
> do/end doesn't bind tightly enough for the assignment to  
> 'elements'. Using {}
> should work.

Sure it does:

 >> numbers = (1..3).map do |n|
?>   n * 2
 >> end
=> [2, 4, 6]

My problem is not syntax.  It's that I can't find a way to iterate to  
the result of parse?().

James Edward Gray II