egemen-dev / linked_lists

linked lists

This is from The Odin Project's Ruby curriculum.

1. #append(value) adds a new node containing value to the end of the list
2. #prepend(value) adds a new node containing value to the start of the list
3. #size returns the total number of nodes in the list
4. #head returns the first node in the list
5. #tail returns the last node in the list
6. #at(index) returns the node at the given index
7. #pop removes the last element from the list
8. #contains?(value) returns true if the passed in value is in the list and otherwise returns false.
9. #find(value) returns the index of the node containing value, or nil if not found.
10. #to_s represent your LinkedList objects as strings, so you can print them out and preview them in the console. The format: ( value ) -> ( value ) -> ( value ) -> nil