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const BLANK_BOARD = [
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 0, 0, 0, 0, 0]

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def self.count_vhs_rentals_by(attribute)
  Rental.all.each_with_object({}) do |rental, vhs_hash| 
    vhs_hash[rental.send(“#{attribute}”)].nil? ? vhs_hash[rental.“#{attribute}”] = 1 : vhs_hash[rental.“#{attribute}”] += 1 
  end
end

Vhs.count_vhs_rentals_by(“vhs”) #=>
#{<Vhs:0x00007f8d5e2bf0f0 id: 17, serial_number: "MAX-luqovgdk8e7tl", movie_id: 9 => 1,
 #<Vhs:0x00007f8d4f81a4a0 id: 29, serial_number: "BABA-t6k24krzqclts", movie_id: 13 =>2,
 #<Vhs:0x00007f8d4f854538 id: 11, serial_number: "BABA-begvxe7ai0rc6", movie_id: 13 =>3}

dsasse07

class MaxHeap {
  constructor(){
    this.values = []
    this.size = 0
  }
  
  insert(value){
    // If no value, do nothing
    if (value === undefined) return
    // Insert the value, and increment the size of the heap

dsasse07

class MaxHeap {
  constructor(arr = []){
    this.size = 0
    this.values = this._heapify(arr)
  }
  
  insert(value){
    // If no value, do nothing
    if (value === undefined) return
    // Insert the value, and increment the size of the heap

dsasse07

import "./styles.css";
import styled from "styled-components";
import LinkedInIcon from "@material-ui/icons/LinkedIn";
import FacebookIcon from "@material-ui/icons/Facebook";
import TwitterIcon from "@material-ui/icons/Twitter";
import MailOutlineIcon from "@material-ui/icons/MailOutline";
import SmsIcon from "@material-ui/icons/Sms";
import ShareIcon from "@material-ui/icons/Share";
import { useState } from "react";

dsasse07

Rails API Setup

Environment Setup

Make sure you are running a Ruby version supported by Heroku to make your app easier to deploy later. At the time of writing, that is:

• 2.6.6
• 2.7.2
• 3.0.0

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// Using Conditionals

const newMessage = {type: "error", message: "You still haven't squished the bugs!"}

const generateLog = newMessage => {
  if (newMessage.type === "warn" {
    Log.warn(newMessage.message)    
  } else if (newMessage.type === "error" {
    Log.error(newMessage.message)
  } else if (newMessage.type === "notify" {

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const greetings = {
  english: "hello",
  spanish: "hola"
}

const langChoice = "spanish"

greetings.english //=> "hello"
greetings[langChoice] //=> "hola"

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export class Log {
  static error(msg){
    let date = new Date();
    let time = date.toLocaleTimeString();
    return {type: 'error', msg: `[${time}] ERROR: ${msg}`}
  }

  static warn(msg){
    let date = new Date();
    let time = date.toLocaleTimeString();

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const pokeHoles = (startingBoard, holes) => {
  const removedVals = []
  const val = shuffle( range(0,80) )

  while (removedVals.length < holes) {
    const nextVal = val.pop()
    if (nextVal === undefined) throw new Error ("Impossible Game")
    const randomRowIndex = Math.floor(nextVal / 9) // Integer 0-8 for row index
    const randomColIndex = nextVal % 9