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Convert to result array of Hash.to_a or Hash.sort back to a hash (See related posts)

hash_var = array_var..inject({}) {|h, elem| h[elem[0]]=elem[1]; h}
to ruby hash array by thesaint on Thu May 25 10:15:21 -0400 2006

Comments on this post

brotherlarry posts on Jun 09, 2006 at 20:21
This does the same thing:

Hash[*array_var.flatten]
NickHowell posts on Apr 25, 2007 at 18:48
Actually, that'll break if your Hash contains array values:

Hash[ *{ :x => 1, :y => 2, :z => [3,4] }.to_a.flatten ]
ArgumentError: odd number of arguments for Hash
        from (irb):1:in `[]'
        from (irb):1

{ :x => 1, :y => 2, :z => [3,4] }.to_a.inject({}) { |m, e| m[e[0]] = e[1]; m }
=> {:y=>2, :x=>1, :z=>[3, 4]}


The discrepancy is because flatten recurses.

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