lib/abstractivator/value_map.rb in abstractivator-0.18.0 vs lib/abstractivator/value_map.rb in abstractivator-0.19.0

@@ -1,15 +1,12 @@
-# like Enumerable#map, except if the receiver is not enumerable,
+# Like Enumerable#map, except if the receiver is not enumerable,
 # i.e., a single value, then it transforms the single value.
+#
+# [2,3].value_map { |x| x * x }  =>  [4, 9]
+# 2    .value_map { |x| x * x }  =>  4
 
 class Array
   alias_method :value_map, :map
-end
-
-class NilClass
-  def value_map
-    nil
-  end
 end
 
 class Object
   def value_map
     yield self