From: Wally T Terrible <wally.terrible@...>
Date: 2008-01-10T09:10:25+09:00
Subject: Re: About array to hash conversion

I just did this myself. Because I knew how the data was stored in the 
array, I was able to control how I put it into the hash. What I did was 
this:
    myArray=['255','10','258','08','154','34'] #(etc)
    myHash={}
    c=0
    while c<=myArray.size
        myHash.store(myArray[c],myArray[c+1])
    c+=2
    end

I don't suggest that this absolutely the best way to do it, and it may 
not work if you don't know your data structure in the array but it was a 
quick and easy way for me to solve my problem.


Holden Holden wrote:
> Hi,
>
> I want to convert an array (with pairs [key,value]) to a hash. After
> googling a bit I got:
>
> 1) Hash[*array.flatten]
>
> But this is not safe as Array#flatten is recursive.
>
> 2) array.inject({}) { |m, e| m[e[0]] = e[1]; m }
>
> Too ugly to consider.
>
> 3) Hash[*array.flatten(1)]
>
> That's my own attempt. It only works for Ruby > 1.9.
>
> But I am still wondering why...
>
> - Array objects have no "to_h" method?
> - Hasy[*array] don't accept the [key,value] pairs (as Hash#to_a calls
> return)?
>
> thanks,
> holden
>