aelshamy

var Subject  = function(){
  var self = this;
  self.observers = [];
  
  return{
    
    subscribeObserver:function(observer){
      
      self.observers.push(observer);
      

aelshamy

function LinkedList(){
  this.head = null;
  this.tail = null;
}

function Node(value, next, prev){
  this.value = value;
  this.next = next;
  this.prev = prev;
}

aelshamy

// Singleton design pattern ES5
var Singleton = (function(){
  var instant;
  function createInstant(){
    var object = new Object("Iam instant");
    return object;
  }
  return {
    getInstant:function(){
      

aelshamy

function BST(value){
    this.value = value;
    this.left = null;
    this.right = null;
}

BST.prototype.insert = function(value){
    if(value <= this.value){
        if(!this.left) this.left = new BST(value);
        else this.left.insert(value);

aelshamy

function HashTable (size){
    this.buckets = Array(size);
    this.numBuckets = this.buckets.length;
}

function HashNode(key, value, next){
    this.key = key;
    this.value = value;
    this.next = next || null;
}

aelshamy

void main() {
  var deck = new Deck();
  deck.shuffle();
  deck.deal(5);
  print(deck.deal(5));
}

class Deck {
  List<Card> cards = [];

aelshamy

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    const appTitle = 'StreamProvider Demo';

aelshamy

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() => runApp(MyApp());

class CountDown extends ValueNotifier<int> {
  CountDown(int downFrom) : super(downFrom) {
    scheduleDecrement();
  }