How about
hashTable.sort.keys[0,10].each { |key| puts "#{key} #{hashTable[key]} }
Christian
On 13.02.2009, at 12:45, Vikas Gholap wrote:
>
> Hello All, I am new to programming, i have little problem with hash.
>
> I want to retrieve first 10 items(key value pairs) from given hash{}
>
> hashTable = {"a" => 1, "b" => 5, "c" => 2, "d" => 6, "e" => 4, "f"
> => 7,
> "g" => 9, "h" => 5, "i" => 1, "j" => 8, "k" => 9, "l" => 3, "m" => 7,
> "n" => 10, "o" => 12}
>
> #sort hashTable on value by descending order
> hashTable.sort {|a,b| -1*(a[1]<=>b[1])}
>
> #now I want 10 items from sorted hashTable
>
> I wrote some thing like
> ---------------------------------
> hashTable.each do |key,value|
> puts"Key: #{key} ==> #{value}"
> # I want only first 10
> end
> ------------------------------------
> it prints all elements but i want only 10 items. please help.
>
> Thanks,
> Vikas
> --
> Posted via http://www.ruby-forum.com/.
>
> >
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