Call .map for the first elements of the X array

Question

I want to call .map only on the first X elements of the array. How to do it?

Answer 1

In ruby ​​1.9

array.first(X).map{|e| ...} 

Ruby 1.8

 array[0, X].map{|e| ...} 

Answer 2

Plain,

 array.first(X-number) 

and that's all.

See you...