#* http://rosettacode.org/wiki/Associative_arrays/Creation
  Create a hash.
*#

h = [:]  #Empty hash

h[:a] = 1
h[:b] = [1 2 3]

h2 = [a: 1, b: [1 2 3], 10 : "ten"]  #Initialized hash

h2[:b][2]  #Returns 3