   max: max
 
 ###*
-Pretend the array is a circle and grab a new array containing length elements. 
-If length is not given return the element at start, again assuming the array 
+Pretend the array is a circle and grab a new array containing length elements.
+If length is not given return the element at start, again assuming the array
 is a circle.
 
     [1, 2, 3].wrap(-1)
     # => 3
-    
+
     [1, 2, 3].wrap(6)
     # => 1
-    
+
     ["l", "o", "o", "p"].wrap(0, 16)
     # => ["l", "o", "o", "p", "l", "o", "o", "p", "l", "o", "o", "p", "l", "o", "o", "p"]
 

    a = [1, 1, "a", "b"]
    a.remove(1)
    # => 1
    
    a
    # => [1, "a", "b"]



    [1.1, 2.2, 3.3, 4.4].invoke("floor")
    # => [1, 2, 3, 4]

    ['hello', 'world', 'cool!'].invoke('substring', 0, 3)
    # => ['hel', 'wor', 'coo']

