Table of Contents

• About

• Usage

  • Create Tree
  • Insert
  • Get Node From Value
  • Get Node From Key
  • isLeaf
  • Size
  • maxDepth

• Authors

About

Jsbt stands for Javascript Binary Tree, it is one solution to the popular binary tree problem

Installing

For Installation With NPM

Usage

Create Tree

Create binary tree object

const { BinaryTree } = require('jsbt');

//create new tree with root value of "A"
let tree = new BinaryTree("A")

Insert

Insert into binary tree

//insert into the tree at parent "1" with value of "AA" on any side
tree.insert("1", "AA")

An object of {left, right} can be passed to specify which side to insert on

//insert into the tree at parent "1" with value of "AB" on the right side
tree.insert("1", "AB", {right: true})

//insert into the tree at parent "1" with value of "AA" on the left side
tree.insert("1", "AA", {left: true})

//insert into the tree at parent "11" with value of "AAA" on the left side
tree.insert("11", "AAA", {left: true})

Get From Value

Get binary tree node from value.

If multiple nodes have the same value will only return first

//get node with value "AB"
tree.getNodeFromValue("AB")

//expected output: Node {key: '12', value: 'AB', parent: '1', left: null, right: null}



//get node with value "ABBA"
tree.getNodeFromValue("ABBA")

//expected output: undefined

Get From Key

Get binary tree node from key.

//get node with key "12"
tree.getNodeFromKey("12")

//expected output: Node {key: '12', value: 'AB', parent: '1', left: null, right: null}



//get node with key "121212"
tree.getNodeFromKey("121212")

//expected output: undefined

isLeaf

return true or false if node is a leaf

//get node with key "12"
tree.getNodeFromKey("12").leaf

//expected output: true



//get node with key "11"
tree.getNodeFromKey("11").leaf

//expected output: false

Size

return number of nodes in binary tree

//get tree size including root node
tree.size

//expected output: 4

maxDepth

return number of nodes in the longest route

//get longest route of nodes
tree.maxDepth

//expected output: 3

Authors

• @YoloFTW