class Tree
    @branches = 0
    @height = 0
    @availableOptions: => ['branches', 'height']

class Dog
   @age = 0
   @name = 'Doge'
   @availableOptions: => ['age', 'name']


arr = ['Tree', 'Dog']

   #alert(Tree.availableOptions())

for elem in arr
    do ->
      options = eval("#{elem}.availableOptions()")
      for option in options
        do ->
          val = eval("#{elem}.#{option}")
          alert(val)