khaled0fares

Array.prototype.transform = function(fn){ //map
  let newList =  [], i = 0, len = this.length;
  for(i; i < len; i++){
    newList.push(fn(this[i]));
  }
  return newList;
}

Array.prototype.exclude  =  function(fn){ //filter
  let filteredList = [], i = 0, len = this.length;

khaled0fares

var isIt =  function(that, type){
  return Object.prototype.toString.call(that) === ('[object '+ type + ']')
}


//Examples 
isIt([1,2], "Array"); // true
isIt(undefined, "Undefined"); // true
isIt(true, "String") // false 

khaled0fares

var Calc = function(init){
  this.init = init;
}

Calc.prototype.equals   = function(callback){
  callback(this.init);
}

Calc.prototype.add  = function(val){
  this.init  += val;

khaled0fares

let  deepCopy =  function(copied, copy){
  let i = 0, len = copy.length;

  for(i; i < len; i++){
    copied[i] = copy[i]
  }

  return copied;
}

khaled0fares

Array.prototype.Every =  function(callback){
  let i = 0, len =  this.length;
  for(i; i < len; i++){
    if(!callback(this[i])){
      return false
    }
  }
  return true
}

khaled0fares

let List =  function(){
  this.Store =  [];
  this.size = 0;
  this.pos = 0;
}

List.prototype.append  =  function(ele){
  this.Store[this.size++] = ele;
}

khaled0fares

let Singleton  = (function(name, yearOfBirth, job, relationship){
  let instance;

  function init(){
    return {
      name: name,
      age: new Date().getFullYear() - yearOfBirth,
      job: job,
      relationship: relationship
    }

khaled0fares

'use strict'

let Stack  = function(max){
  this.Store = [];
  this.top = 0;

  if(typeof max == 'number' && max != NaN){
    this.max = max
  }else{
    throw new Error(max + ' should be a number');

khaled0fares

let stack = require("https://gist.github.com/khaled0fares/4ffe7a9db1c4c71b1e361c2c636f0c71");// Link to the stack gist, for calirfication only.

let isPalindrome =  function(txt){

  let len  = txt.length, 
    stack = new Stack(len), 
    reversed =  "",
    i = 0;

  while(!stack.full()){

khaled0fares

let Queue  = function(){
  this.Store = [];
}

Queue.prototype.enqueue  =  function(ele){
  this.Store.push(ele);
}

Queue.prototype.dequeue = function(){
  if(this.empty()){