practice.js

////////////////// PROBLEM 1 ////////////////////

// JavaScript doesn't care if you use single or double quotes for your strings
// Make a variable named greeting with a data type of string that says "Hi" (with double quotes)
// After the first variable, make a variable named farewell with a data type of string that says 'Goodbye' (with single quotes)

// Code here

////////////////// PROBLEM 2 ////////////////////

// Make a variable called hello with a data type of a string that says "Hello"
// Next, make a variable called userName with data types of string that is your name
// Concatenate hello and userName together and store the result in a variable called salutation

// Code here

////////////////// PROBLEM 3 ////////////////////

// Create a variable called seven that has a number data type with the value of 7

// Code here

////////////////// PROBLEM 4 ////////////////////

// Make a variable called money with a value equal to the amount you wish to have in your bank account in 2 years
// This datatype should be a number

// Code here

////////////////// PROBLEM 5 ////////////////////

// Make a variable called awesome and give it a value of the boolean data type true

// Code here

////////////////// PROBLEM 6 ////////////////////

// Do not edit the code below.
let myCar = 'Jeep';
// Do not edit the code above.

// Set the variable myCar to be null

// Code here

////////////////// PROBLEM 7 ////////////////////

// Create a variable called users which should be an array with 4 items in it
// Each item should be an object, and each object should have 2 properties: name (string) and age (number)

// Code here

////////////////// PROBLEM 8 ////////////////////

// Create a variable called family which should be an object
// This object should have 3 keys/properties which will be the names of people (you can choose these names)
// Each property will have a corresponding value which will be an object with one property called "hobbies"
// Each hobbies property will have a corresponding value which will be an object

// Code here

////////////////// PROBLEM 9 ////////////////////

// Create a variable called gameScores which should be an array with 3 items in it
// Each item should be an array with 2 items (numbers) in each array

// Code here

////////////////// PROBLEM 10 ////////////////////

// Create a variable called people which should be an array of 3 objects
// Each object should have 3 properties: name (string), gender (string), height (number) in each array

// Code here

////////////////// PROBLEM 11 ////////////////////

// Create a variable called cowboy which should be an object
// This object should have 3 properties: name (string), state (string), favoriteCountrySong (string)

// Code here

////////////////// PROBLEM 12 ////////////////////

// Do not edit the code below.
const spaceship = {
  fuel: 'liquid hydrogen',
  topSpeed: 36000,
  fuelLevel: 100,
  altitude: 0,
};

function launch() {
  spaceship.fuelLevel -= 30;
  spaceship.altidude += 1000;
}
// Do not edit the code above.

// Create a variable called dataTypes which should be an array of the following 6 items:
//   the number 42
//   the string "meaning"
//   the boolean true
//   an array with 5 numbers
//   the object spaceship (provided for you)
//   the function launch (provided for you)

// Code here

////////////////// PROBLEM 13 ////////////////////

// Edit the function called "sum" so that when it is invoked, it returns the sum of its parameters num1 and num2

function sum(num1, num2) {
  return; // Code here
}

////////////////// PROBLEM 14 ////////////////////

// Create two variables number1 and number2 and assign them number values

// Code here

// Next, edit the function called "multiply" so that when it is invoked, it returns the result of multiplying number1 and number2

function multiply() {
  return; // Code here
}

////////////////// PROBLEM 15 ////////////////////

// Do not edit the code below.
let food = 'pizza';
// Do not edit the code above.

// Edit the function favFood so that when it is invoked it returns the string "My favorite food is pizza"
// In your solution code, use template strings (not concatenation) and use the food variable provided

function favFood() {
  return; // Code here
}

////////////////// PROBLEM 16 ////////////////////

// Do not edit the code below.
let theName = 'Jeremy';
let theBoss;
// Do not edit the code above.

// Edit the function assignName so that when it is invoked with the variable theName passed in as an argument,
// the function assigns the value of theName to theBoss variable

function assignName(name) {
  // Code here
}

////////////////// PROBLEM 17 ////////////////////

// Do not edit the code below.
const user = {
  name: 'Billy',
  age: 18,
  email: 'billy123@billy.com',
};
// Do not edit the code above.

// Using the user object provided,
// edit the function getName so that it accesses the name property of the user object and returns its value

function getName(userObj) {
  return; // Code here
}

////////////////// PROBLEM 18 ////////////////////

// Do not edit the code below."
const calendar = {
  months: [
    'January',
    'February',
    'March',
    'April',
    'May',
    'June',
    'July',
    'August',
    'September',
    'October',
    'November',
    'December',
  ],
  weekDays: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
  days: [
    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
    27, 28, 29, 30, 31,
  ],
};
// Do not edit the code above.

// Edit the function getWeekDay so that it returns the 3rd item in the weekDays array stored in the calendar object

// In your solution, use the correct notation to access the value "Tuesday" and do not simply return the string "Tuesday"
// Make sure you are accessing it from the weekDays array of the calendar object

function getWeekDay(calendar) {
  return; // Code here
}

////////////////// PROBLEM 19 ////////////////////

// Create a function called "fn" that takes in a parameter and returns that parameter

// Code here

////////////////// PROBLEM 20 ////////////////////

// Do not edit the code below.
let firstName = 'Indiana';
let lastName = 'Jones';
// Do not edit the code above.

// Create a function called createName that takes in no parameters and returns the result of concatenating firstName and lastName (provided)
// The returned value should include a space between the first and last names and should use concatenation (not template strings)

// Code here

////////////////// PROBLEM 21 ////////////////////

// Create a function called showMeSeven that returns the number 7

// Code here

////////////////// PROBLEM 22 ////////////////////

// Create a function called multiplier that takes two parameters (numbers) and returns the product of the two parameters

// Code here

////////////////// PROBLEM 23 ////////////////////

// Create a function called sayHello that takes two parameters: a greeting (string) and a name (string)
// This function should return a string that is the result of concatenating the greeting and name parameters
// The returned value should include a space between the greeting and name parameters

// Code here

////////////////// PROBLEM 24 ////////////////////

// Create a function called makeExercise that takes two parameters: exerciseName (string) and duration (number)
// This function should return an object with two key-value pairs:
// the first property should be exerciseName with the value of the first parameter
// the second property should be duration with the value of the second parameter

// Code here

////////////////// PROBLEM 25 ////////////////////

// Do not edit the code below.
let age = 'TBD';
// Do not edit the code above.

// Inside the isOldEnough function, write an if/else statement that will return "old enough" if the age variable is greater than 21 and returns "not yet" otherwise
// Use the if and else keywords in your solution
// The variable age will be changed during testing

function isOldEnough() {
  // Code here
}

////////////////// PROBLEM 26 ////////////////////

// Do not edit the code below.
let workEthic = 'TBD';
// Do not edit the code above.

// Inside the successPredictor function, write an if/else statement that will return "success at DevMountain" if the workEthic variable is "great" and returns "failure at DevMountain" otherwise
// Use the if and else keywords in your solution
// The variable workEthic will be changed during testing

function successPredictor() {
  // Code here
}

////////////////// PROBLEM 27 ////////////////////

// Do not edit the code below.
let cookieType = 'TBD';
// Do not edit the code above.

// Inside the eatOrTrash function, write an if/else statement that will return "throw in trash" if the cookieType variable is "raisin" and returns "eat" otherwise
// Use the if and else keywords in your solution
// The variable cookieType will be changed during testing

function eatOrTrash() {
  // Code here
}

////////////////// PROBLEM 28 ////////////////////

// Do not edit the code below.
let myTeamScore = 'TBD';
let yourTeamScore = 'TBD';
// Do not edit the code above.

// Inside the finalScore function, write an if/else statement that will return "we are the champions" if the myTeamScore variable is greater than the yourTeamScore variable and returns ":(" otherwise
// Use the if and else keywords in your solution
// The myTeamScore and yourTeamScore variables will be changed during testing

function finalScore() {
  // Code here
}

////////////////// PROBLEM 29 ////////////////////

// Do not edit the code below.
age = 'TBD';
// Do not edit the code above.

// Inside the findCorrectTransportation function, write an if/else statement that will check the age variable and return the correct response according to the following criteria:
// if age is from 3 to 7, return "tricycle"
// if age is from 8 to 15, return "bicycle"
// if age is greater than 15, return "car"

// Use the if and else keywords in your solution
// The variable age will always be a number and will be changed during testing

function findCorrectTransportation() {
  // Code here
}

////////////////// PROBLEM 30 ////////////////////

// Do not edit the code below.
let cash = 'TBD';
let temp = 'TBD';
// Do not edit the code above.

// Inside the doIGetIceCream function, write an if/else statement that will check the cash and temp variables and return the correct response according to the following criteria:
// if temp is equal to "hot" and money is true, return "Get Ice Cream!"
// otherwise return "Save up for another day."

// Use the if and else keywords in your solution
// The variable age will always be a number and will be changed during testing

function doIGetIceCream() {
  // Code here
}

////////////////// PROBLEM 31 ////////////////////

// Do not edit the code below.
let chores = 'TBD';
let work = 'TBD';
// Do not edit the code above.

// Inside the doIHaveFreeTime function, write an if/else statement that return "free time!" if either chores or work are false

// In your solution, be sure to use the logical NOT operator (bang operator) instead of using true or false keywords
// Use the if and else keywords in your solution
// The chores and work variables will always be true or false and will be changed during testing

function doIHaveFreeTime() {
  // Code here
}

////////////////// PROBLEM 32 ////////////////////

// Do not edit the code false.
let crash = false;
let currentSpeed = 'TBD';
let brakes = 'TBD';
// Do not edit the code above.

// Inside the setCrash function, write an if/else statement that will set the value of crash to true if currentSpeed is "fast" and brakes is false and does nothing otherwise

// In your solution, be sure to use the logical NOT operator (bang operator) instead of using true or false keywords
// Use the if and else keywords in your solution
// The currentSpeed variables will always be a string and will be changed during testing
// The brakes variables will always be a boolean and will be changed during testing

function setCrash() {
  // Code here
}

////////////////// PROBLEM 33 ////////////////////

// Do not edit the code below.
let user2 = {
  name: 'Tiffany',
  total: 50,
};
// Do not edit the code above.

// Write a function called makePurchase that takes in a parameter called priceOfItem
// If priceOfItem is less than or equal to the total on the user object (provided), have the makePurchase function subtract priceOfItem from the user's total
// If the priceOfItem is greater than the user total, makePurchase should return "not enough funds"

// Use the if and else keywords in your solution
// The arguments passed into makePurchase will always be numbers and will be changed during testing

// Code here

////////////////// PROBLEM 34 ////////////////////

// Do not edit the code below.
var hunger;
var fatigue;

function eat() {
  hunger = 'gone';
  return 'yum yum';
}

function sleep() {
  fatigue = 'gone';
  return 'zzz zzz zzz';
}
// Do not edit the code above.

// Write a function called decisionMaker that takes two parameters hungry and tired and and reacts according to the following criteria:
// if hungry is true and tired is false, invoke and return the eat function (provided)
// if hungry is false and tired is true, invoke and return the sleep function (provided)
// otherwise, return the string "undecided"

// In your solution, be sure to use the logical NOT operator (bang operator) instead of using true or false keywords
// Use the if and else keywords in your solution
// The arguments passed into decisionMaker will always be true or false and will be changed during testing

// Code here