GermanHoyos

<script>
let x = arr[i] || ' '; // <-- if arr[i] is falsy (doesnt return a value) x will be the string or the value after the ||

// run a for loop on two conditions being OR true, once one isnt true the other is checked for truth
	let indexZro = array[0];
	let indexOne = array[1];
	for (let i = 0; i < indexZro.length || i < indexOne.length; i++)

//use a object to change global variable localy without declaring locally
	let x = 0;

GermanHoyos

1. This file declares a class, Player, instantiates it, and assigns it to a global player variable.
2. The Player class contains four methods:
   • constructor()
   • playPause()
   • skipTo()
   • setVolume()
3. The constructor() method sets initial values for the currentlyPlaying, playState, volume, and soundObject properties.
   • currentlyPlaying is set to the first item in album.songs.
   • The initial playState is "stopped".

• The volume is set to the number 80.

GermanHoyos

import React, { Component } from 'react';
import './App.css';
import ToDo from './components/ToDo.js';


class App extends Component {
constructor(props) { //Initial properties to be default renderd
    super(props);
      this.state = {
        todos: [

GermanHoyos

import React, { Component } from 'react';

class ToDo extends Component {
  render() {
       return (
        <li>
         <input type="checkbox"  checked={ this.props.isCompleted } onChange={ this.props.toggleComplete }/>
         <span>{ this.props.description }</span>
         <button onClick={this.deleteToDo}> Delete this ToDo</button>
        </li>

GermanHoyos

import React, { Component } from 'react';
import './App.css';
import ToDo from './components/ToDo.js';


class App extends Component {
constructor(props) { //Initial properties to be default renderd
    super(props);
      this.state = {
        todos: [

GermanHoyos

import React, { Component } from 'react';
import albumData from './../data/albums';


class Album extends Component {
  constructor(props) {
      super(props);

      const album = albumData.find( album => {
       return album.slug === this.props.match.params.slug

GermanHoyos

import React, {Component} from 'react';

const testArr1 = [1,2,3];
const testArr2 =[{one:1},{two:2},{three:3}];

class RoomList extends Component {
constructor(props) {
  super(props);
      this.state = {
        rooms: []

GermanHoyos

import React, {Component} from 'react';

class RoomList extends Component {
    constructor(props) {
    super(props);
    this.state = {
        rooms: [],
        display: 'none',
        displayRoom: 'none',
        newRoomName: 'New room',

GermanHoyos

=begin
Define a class called CheckingAccount that inherits from BankAccount.
Write it so that if more than 3 withdrawals are made, it charges a $5
fee for each transaction afterwards. Use a constant called
MAX_FREE_WITHDRAWALS to set the maximum number of withdrawals before the
fee kicks in. Define a method called get_free_withdrawal_limit to expose
the value of the constant. If there aren't enough funds to cover the fee
and the limit has been reached, it should not make a successful
withdrawal. The class should also have a transfer method that uses an 
account to move money from, and an amount to transfer as arguments and 

GermanHoyos

class BankAccount
  attr_reader :balance, :number_of_withdrawals

  def initialize(balance) #constructor
    @balance = balance
    @number_of_withdrawals = 0
  end

  def display_balance
    @balance