Implement the following Enum functions using no library functions or list comprehensions: all?, each, filter, split, and take. You may need to use an if statement to implement filter. The syntax for this is
| | if condition do |
| | expression(s) |
| | else |
| | expression(s) |
| | end |
(Hard) Write a flatten(list) function that takes a list that may contain any number of sublists, which themselves may contain sublists, to any depth. It returns the elements of these lists as a flat list.
| | iex> MyList.flatten([ 1, [ 2, 3, [4] ], 5, [[[6]]]]) |
| | [1,2,3,4,5,6] |
Hint: You may have to use Enum.reverse to get your result in the correct order.