Creating a Linked List in Data Structure
A linked list is a fundamental data structure used in programming. It is a dynamic collection of nodes, where each node contains data and a reference to the next node in the list. In this tutorial, we will explore how to create a linked list from scratch using HTML.
Step 1: Setting up the Linked List Structure
To begin, we need to define the structure of our linked list. Each node will contain two components: the data and a pointer/reference to the next node. Let’s start by creating an HTML structure for a single node:
“`
Structure of Node:
- Data: The actual value stored in the node.
- Next: A reference to the next node in the list.
“`
Step 2: Creating a Node Class
In order to create and manipulate our linked list, we need to define a Node class. This class will have properties for data and next, along with methods for accessing and modifying these properties.
Here’s an example implementation of the Node class:
“`html
An example implementation of Node class:
<script>
class Node {
constructor(data) {
this.data = data;
this.next = null;
}
}
</script>“`
Step 3: Building the Linked List
Now that we have our Node class set up, we can proceed with building our linked list by connecting multiple nodes together.
A) Initialize an empty linked list:
First, let’s create an initial empty linked list. We’ll need a reference to the head of the list, which will represent the first node in the linked list.
“`html
Initialize an empty linked list:
<script>
let head = null;
</script>“`
B) Add nodes to the linked list:
To add nodes to our linked list, we can create new instances of the Node class and assign them to the next property of existing nodes. Let’s add a few nodes to our linked list:
“`html
Add nodes to the linked list:
<script>
// Create new nodes
let node1 = new Node("Data 1");
let node2 = new Node("Data 2");
let node3 = new Node("Data 3");
// Connect nodes together
head = node1;
node1.next = node2;
node2.next = node3;
</script>“`
Step 4: Traversing the Linked List
Once we have built our linked list, it’s important to be able to traverse through it and access its elements. Traversal is done by starting from the head and moving to each subsequent node until we reach the end of the list.
To traverse and print all elements in our linked list:
“`html
To traverse and print all elements in our linked list:
<script>
// Start from the head of the linked list
let current = head;
// Traverse and print all elements
while (current != null) {
console.log(current.data);
current = current.next;
}
</script>“`
Conclusion
In this tutorial, we have learned how to create a linked list in data structure using HTML. We started by defining the structure of a node and then implemented a Node class. We also covered how to build a linked list by connecting multiple nodes together and how to traverse the list to access its elements.
Linked lists are essential in many programming scenarios, and understanding their creation and traversal is crucial. By incorporating the use of HTML styling elements such as for bold text, for underlined text,
- and
- for lists, and
,
, etc. for subheaders, we can create visually engaging tutorials that are both informative and well-structured.