Data commit

Task/Enumerations/Ruby/enumerations-1.rb

@@ -0,0 +1,11 @@
+module Fruits
+  APPLE  = 0
+  BANANA = 1
+  CHERRY = 2
+end
+
+# It is possible to use a symbol if the value is unrelated.
+
+FRUITS = [:apple, :banana, :cherry]
+val = :banana
+FRUITS.include?(val)      #=> true

Task/Enumerations/Ruby/enumerations-2.rb

@@ -0,0 +1,12 @@
+module Card
+  # constants
+  SUITS = %i(Clubs Hearts Spades Diamonds)
+  SUIT_VALUE = SUITS.each_with_index.to_h               # version 2.1+
+# SUIT_VALUE = Hash[ SUITS.each_with_index.to_a ]       # before it
+  #=> {:Clubs=>0, :Hearts=>1, :Spades=>2, :Diamonds=>3}
+
+  PIPS = %i(2 3 4 5 6 7 8 9 10 Jack Queen King Ace)
+  PIP_VALUE = PIPS.each.with_index(2).to_h              # version 2.1+
+# PIP_VALUE = Hash[ PIPS.each.with_index(2).to_a ]      # before it
+  #=> {:"2"=>2, :"3"=>3, :"4"=>4, :"5"=>5, :"6"=>6, :"7"=>7, :"8"=>8, :"9"=>9, :"10"=>10, :Jack=>11, :Queen=>12, :King=>13, :Ace=>14}
+end