Install

via npm

npm install ds-sll

via git

git clone https://github.com/scriptnull/ds-sll.git

Usage

var ds = require('ds-sll')
 , LinkedList = ds.LinkedList
 , Node = ds.Node ;

Node

Nodes are elementary blocks of Linked List. To maintain data within Linked List, use Node objects as containers. Nodes have data and a pointer to next node.

Creating a node

var numberNode = new Node(1);
var stringNode = new Node('yo');
var objectNode = new Node({ foo : 'bar'});

Properties

var node = new Node(1);
console.log(node.data);  //1 - data of node
console.log(node.next);  //null - next pointer

Methods

• setNext(node)
• getNext()

Linked List

Singly Linked Lists are collection of Node objects having only next pointer.

Creating a Linked List

var ll = new LinkedList();

Properties

var ll = new LinkedList();
console.log(ll.length); // 0 - length of linked list
console.log(ll.head);   // null - head of the linked list

Methods

• insertAtHead(node)
• insertAtTail(node)
• insertAtPosition(node,position)
• deleteAtHead()
• deleteAtTail()
• deleteAtPosition(position)
• getDataAtPosition(position)
• findPositionByData(data)

Contributing

Any kind of contribution is welcomed. If you are adding new features , be sure to write the required tests for it.

Tests

Tests are written with Mocha + inbuilt Node.js assert library. Initail commit has about 30+ tests. If you feel ds-sll is going wrong somewhere. You could report it in issues or better submit a pull request by describing the case in a test suite. You can track the build status from travis-ci

License