Javascript data structures - the binary tree
Javascript data structures - the binary tree
Written by Mike James   
Thursday, 18 September 2014
Article Index
Javascript data structures - the binary tree
Tree relative
Listing

 The full listing


function BinaryTree(){
this.Nodes = new Array();
this.level = 0;
this.node = 0;

this.setNode = function(value,level,node){
  if (level === undefined) {
  this.Nodes[this.btSMF(this.level, this.node)] = value;
  }else {
   this.Nodes[this.btSMF(level,node)] = value;
  }
}

this.getNode = function(level, node){
  if (level === undefined) {
   return this.Nodes[this.btSMF(this.level,this.node)];
  }else {
   return this.Nodes[this.btSMF(level,node)];
  }
}

this.root = function(value){
  this.level = 0;
  this.node = 0;
  if (value !== undefined) {
   this.Nodes[this.btSMF(this.level,this.node)] = value;
  }
  return this.Nodes[this.btSMF(this.level,this.node)];
}

this.leftChild = function(value){
  this.level++;
  this.node = this.node * 2;
  if (value !== undefined) {
   this.Nodes[this.btSMF(this.level,this.node)] = value;
  }
  return this.Nodes[this.btSMF(this.level,this.node)];
}

this.rightChild = function(value){
  this.level++;
  this.node = this.node * 2 + 1;
  if (value !== undefined) {
this.Nodes[this.btSMF(this.level, this.node)] = value;
  }
  return this.Nodes[this.btSMF(this.level, this.node)];
}

this.parent = function(value){
  this.level--;
  this.node = this.node >> 1;
  if (value !== undefined) {
   this.Nodes[this.btSMF(this.level, this.node)] = value;
  }
  return this.Nodes[this.btSMF(this.level,this.node)];
}

this.btSMF = function(level, node){
  return node + (1 << level) - 1;
 }

 

If you would like the code for this project then register and click on CodeBin.

 

jemsicon

JavaScript Data Structures

 

 

 

 

Related Articles

Data structures - Trees       

The Lost Art Of The Storage Mapping Function       

Recursion  

    

To be informed about new articles on I Programmer, install the I Programmer Toolbar, subscribe to the RSS feed, follow us on, Twitter, FacebookGoogle+ or Linkedin,  or sign up for our weekly newsletter.

 

Banner
 


Master JavaScript Regular Expressions

Regular expressions can seem complex but the biggest reason for this is that most programmers don't take them seriously enough. Spend just a little time finding out how they work and you can do amazin [ ... ]



jQuery 3 - Consuming Promises

Promises are a way of organizing asynchronous calls that is better than using callbacks. The callbacks are still there but they are come with a degree of organization. Previously jQuery was criticized [ ... ]


Other Articles

 

 
 

 

blog comments powered by Disqus

 



Last Updated ( Thursday, 18 September 2014 )
 
 

   
Banner
RSS feed of all content
I Programmer - full contents
Copyright © 2017 i-programmer.info. All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.