You don't need the bang on merge.
[:a, :b, :c].inject({}) {|hash, e| hash.merge({e => hash.size+1})}
On Sat, Jul 24, 2010 at 5:13 PM, Will Jessop <[email protected]> wrote:
> On Sat, Jul 24, 2010 at 5:09 PM, Caius Durling <[email protected]> wrote:
>> Oh that's just too easy to golf. Counting the hash size means you no longer
>> need to access the array within the block.
>>
>> [:a, :b, :c].inject({}) {|hash, e| hash.merge!({e => hash.size+1}) } # =>
>> {:c=>3, :b=>2, :a=>1}
>
> OK, golf as in shorter but still readable :)
>
> Will
>
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