laprep20170509.js

var library = {
  books: {
    orwell: ['1984', 'animal farm'],
    hemingway: ['A Farewell to Arms', 'The Old Man and the Sea', 'The Sun Also Rises']
  }, 
  plays: {
    shakespeare: ['romeo and juliet', 'macbeth']
  }
};

console.log(library['plays']['shakespeare'][1]);


function areArraysEqual(array1, array2) {
  var areEqual = true;
  for (var i = 0; i < array1.length; i++) {
    if (array1[i] !== array2[i]) {
      areEqual = false;
    }
  }
  return areEqual && array1.length === array2.length;
}

if (condition) {
  // stuff if true
} else if (another condition) {
  // more stuff if another condition is true
} else {
  // catch all in case no conditions are met
}

var name = 'Jessica';

if (name === 'George') {
  console.log('The name is George!');
} else if (name === 'Jessica') {
  console.log('The name is Jessica');
} else {
  console.log('The name is neither George nor Jessica')
}

var grade = 82;
// write some if/else statements to console logs a letter 
// grade based on the var grade above

if (grade >= 90) {
  console.log('A');
} else if (grade >= 80 && grade <= 89) {
  console.log('B');
} else if (for c) {
  // etc etc
}

var grade = 82;

if (grade >= 90) {
    console.log('A');
}  else if (grade >= 80) {
    console.log('B');
}  else if (grade >= 70) {
    console.log('C');
} else if (grade >= 60) {
    console.log('D');
} else {
    console.log('You Fail')
}

function square(x) {
  
};





// var rps = ['rock', 'paper', 'scissors']

var rps = {1: 'rock', 2: 'paper', 3: 'scissors'};

// using the above rps object, write some code that randomly
// selects a userChoice, a computerChoice, then compares the
// choices and returns a winner
var min = 1;
var max = 3;

var userChoice = rps[Math.floor(Math.random() * (max - min + 1)) + min];
var computerChoice = rps[Math.floor(Math.random() * (max - min + 1)) + min];

// feel free to use MDN to see how to generate random numbers

if (userChoice === computerChoice) {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. It is a tie!');
} else if (userChoice === 'rock' && computerChoice === 'paper') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. Computer wins!');
} else if (userChoice === 'rock' && computerChoice === 'scissors') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. User wins!');
} else if (userChoice === 'paper' && computerChoice === 'scissors') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. Computer wins!');
} else if (userChoice === 'paper' && computerChoice === 'rock') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. User wins!');
} else if (userChoice === 'scissors' && computerChoice === 'paper') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. User wins!');
} else if (userChoice === 'scissors' && computerChoice === 'rock') {
  console.log('User picked ' + userChoice + ' and the computer picked ' + computerChoice + '. Computer wins!');
} else {
  console.log('Something went wrong');
}

// write some logic to console.log a winner

// Solve the above using functions. Use helper functions when it makes sense to.

function decidingWinner() {
  // logic of what beats what and console.logs the winner
}

function computerChoice() {
  // should randomly return either rock, paper, or scissors
}

function userChoice() {
    // should return a random number between min and max
}

function randomNum(min, max) {
  // should return a random number between min and max
}





/*
What are examples of comparison operators?

>
<
>=
<=
=== or ==
!==

ternary operator: a way to write simple if statements in one line

objects are passed in by reference not by value

function declaration vs function expression
http://stackoverflow.com/questions/1013385/what-is-the-difference-between-a-function-expression-vs-declaration-in-javascrip

*/