variable name change

lib/diamond_generator.rb

@@ -1,15 +1,15 @@
 class DiamondGenerator
   def generate(letter)
-    result = []
+    topDiamond = []
     letter_distance = letter.ord - 'A'.ord
     (0..letter_distance).each do |index|
       current_letter = ('A'.ord + index).chr
       if index == 0
-        result << ' '*letter_distance + current_letter + ' '*letter_distance
+        topDiamond << ' '*letter_distance + current_letter + ' '*letter_distance
       else
-        result << ' '*(letter_distance-index) + current_letter + ' '*(2*index-1) + current_letter + ' '*(letter_distance-index)
+        topDiamond << ' '*(letter_distance-index) + current_letter + ' '*(2*index-1) + current_letter + ' '*(letter_distance-index)
       end
     end
-    result = result + (letter=='A' ? [] : result[0..result.length-2].reverse)
+    topDiamond + (letter=='A' ? [] : topDiamond[0...topDiamond.length-1].reverse)
   end
 end