From: coolgeng coolgeng <coolgeng410@...>
Date: 2007-09-26T16:56:48+09:00
Subject: Re: merge two arrays into a hash

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On 9/26/07, Daniel Sheppard <daniels@pronto.com.au> wrote:
>
> > > myhash = {}
> > > key.zip(value) {|a,b| myhash[a] = b }
> > >
> > > It does not work!
> > irb(main):017:0> key.zip(value){|a,b| myhash[a] = b}
> > => nil
>
> The result is in my_hash
>
> irb(main):014:0> myhash = {}
> => {}
> irb(main):015:0> key.zip(value) {|a,b| myhash[a] = b }
> => nil
> irb(main):016:0> myhash
> => {"1"=>"a", "2"=>"b", "3"=>nil}
>
>
Thanks a lot! By the way, what is the different between special case and
general case?

For the special case where key and value do not contain arrays:

Hash[*key.zip(value).flatten]

For the general case:

myhash = {}
key.zip(value) {|a,b| myhash[a] = b }

Dan


-- 
Best Regards
Cooper Geng

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