Ruby Linked List

This is the 3rd entry in the practical computer science in ruby series.

Ruby linked list.

Linked list implementation in ruby. Linked list implemented in ruby for the odin project. So let me take a shot at a brief explanition. For a general description of the linked list data structure with c program source code you might want to take a look at.

New value first end. Def push value first node. We will start by adding the add first method. What is a linked list.

C program source code and explanation for a single linked list. A data element also known as a node and a pointer element to the next node. However a singly linked list is a sequence of the element where the first node links to the second and the second links to the third and so on in one direction on the other hand a singly linked list has nodes with pointers which always point to the next element in the list. Like the name says a linked list is a way to store data in a list format thanks captain obvious.

User pc desktop ruby ruby linked list rb linkedlist 0x00000000051ff9a0 now we can create our first method to add a new element to our linkedlist. This program along with the comments will hopefully give you a decent idea of how to go about implementing a linked list in ruby. The start or entry point of a linked list is called the head and last node will have a pointer of null. A linked list is a simple object we ll call it a node which has its own value or data plus a pointer to the next node in the list.

I am learning actually relearning since i used these things in another life. A linked list is linear data structure that consisting of 2 elements. Ruby linked list pt3 floyd s cycle detection. This discussion focus on singly linked list.

So what s a linked list. You should definitly take a look at the wikipedia linked list article though as they do a much better job of describing it than i do. Because ruby is evaluated from right to left we can do it in a single line of code.