Jean-Julien Fleck wrote:
> 2010/7/20 Vitaliy Yanchuk <fuksito / gmail.com>:
>> Jean-Julien Fleck, thanks.
>> Maybe have an idea of a one-line version? :)
> 
> Well: quite the same using inject:
> 
> arr.inject(Hash.new(0)) {|h,e| h[e]+= 1; h}
> 
> It all depends on what you call 'one-line' :o)
> 
> Cheers,

Wow, Inject is cool method, thanks !
In my mind one-line is that dows not have semi-coloms or new lines of 
course
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