benfluleck

const swap = (array, firstItemIndex, lastItemIndex) => {
  const temp = array[firstItemIndex];
  
  array[firstItemIndex] = array[lastItemIndex];
  array[lastItemIndex] = temp;
}

const heapify = (heap, i, max) => {
  let index, leftChild, righChild;

benfluleck

const items = [5,3,7,6,2,9];
function swapNumbers(items, leftIndex, rightIndex){
    const temp = items[leftIndex];
    items[leftIndex] = items[rightIndex];
    items[rightIndex] = temp;
}
function partition(items, left, right) {
    const pivotNumber   = items[Math.floor((right + left) / 2)] 
   
    while (left <= right) {

benfluleck

function swapNumbers(items, leftIndex, rightIndex){
    const temp = items[leftIndex];
    items[leftIndex] = items[rightIndex];
    items[rightIndex] = temp;
}

function insertionSort(array = []) {
  for(let i = 0; i < array.length; i++) {
    let currentIndex = i
    while(currentIndex > 0 && array[currentIndex] < array[currentIndex - 1]) {

benfluleck

function mergeSort (array= []) {
  if (array.length == 1) return array

  const middle = Math.floor(array.length / 2) 
  const leftHalf = array.slice(0, middle) 
  const rightHalf = array.slice(middle)


  return mergeHalves(
    mergeSort(leftHalf),

benfluleck

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

Node.prototype.toString = function() {
  return this.value;
}  

benfluleck

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

Node.prototype.toString = function() {
  return this.value;
}  

benfluleck

// Bad Case
class Staff {
  constructor(staff) {
    this.staff = staff;
  }

  registerStaff(staff) {
    if (this.validateUser(staff)) {
      return `${staff} has been created`;
    }

benfluleck

// Bad
class Bird{}
class FlyingBird extends Bird {
  constructor(type, name){
    super();
    this.name = name
  } 
  flightSpeed(){
    if(this.name === "parrot" || this.name === "dove"){
      return ('I can fly medium-fast')

benfluleck

// bad
class Bird{
  fly(){
    console.log('I can fly')
  }
}
class Duck extends Bird {
  constructor(){
    super();
  

benfluleck

// bad
class Post {
  constructor(){
  }
  
  editPost(){
    console.log('Post edited')
  }
  
  createPost(){