Thanks guys, that'll do it.

In the interests of making my little problem applicable to more than  
just me, I wasn't correctly thinking about the method as receiving a  
block of code, I thought it was going the other way and plugging the  
variable in wherever I placed it.

Thanks again for the help.

Mike




>> Hey all,
>> I'm a ruby newbie, so this will be obvious, but I can't figure it  
>> out.
>> I'm trying to create a map grid from arrayed names of streets.  I   
>> want to go from [1,2,3] and [a,b,c] to [[1,a], [2,a], [3,a],   
>> [1,b],... [3,c]].
>> so far the closest I have gotten is
>> a1.collect!{|x| [x, a2.collect!{|y| y}]}
>> which returns-- well you can try it if you like, but it's not  
>> right.   Instead of just returning one value of a2 at a time, it  
>> returns the  whole thing every time.  I'm guessing I need to  
>> somehow cycle through  each element of a2 (ie a2[0], a2[1], a2 
>> [2]), but I can't figure it out.
>> You guys will probably eat this up.  What am I so obviously doing  
>> wrong?
>>
>>
>
> You are close but there is no cookie for you! :) You are just  
> constructing
> the Array at the wrong place.
>
>   [1,2,3].map {|i| [:a, :b, :c].map {|l| [i, l]}}
>
> (Substitute #collect for #map if you wish.) Does that make sense?
>