index.js

// ⭐️ Example Challenge start ⭐️

/**
 * ### Challenge `addNumbers`
 * 
 * @instructions
 * This function should be able to take two numbers as arguments
 * and return the result of adding them together.
 * 
 * For example, if we invoke `addNumbers` passing 5 and 3,
 * the returned value should be 8.
 *
 * NOTE: This example has been completed for you.
*/
function addNumbers(num1, num2) {
  return num1 + num2;
}

// ⭐️ Example Challenge end ⭐️


// 👇 COMPLETE YOUR WORK BELOW 👇
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/**
 * ### Challenge `sayGoodbye`
 * 
 * @instructions
 * This function should take an a name as an argument,
 * and return a string that says 'Goodbye, {name}. Have a great day.'
 * 
 * For example, if we invoke `sayGoodbye`
 * passing 'Andy' as the argument,
 * the returned value should look like: 'Goodbye, Andy. Have a great day.'
 * 
*/
function sayGoodbye(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `temperatureCtoF`
 * 
 * @instructions
 * This function should take an a temperature in celsius as an argument,
 * and return the temperature in fahrenheit, rounded to the nearest whole number. 
 * 
 * For example, if we invoke `temperatureCtoF`
 * passing 24 as the argument,
 * the returned value should be: 75
 * 
 * Hint 1: The formula for converting celsius to fahrenheit is t*9/5 + 32 where t is the temperature in celsius.
 * Hint 2: There is a very easy way to round numbers in JS. Do a google search to find out how. 
*/
function temperatureCtoF(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `temperatureInF`
 * 
 * @instructions
 * This function should take an a temperature and a unit (either 'F' or 'C') as arguments,
 * and return the temperature in fahrenheit, rounded to the nearest whole number. 
 * 
 * For example, if we invoke `temperatureInF`
 * passing 88, 'F' as the arguments,
 * the returned value should be: '88F'
 * 
 * If we invoke `temperatureInF`
 * passing 24, 'C' as the arguments,
 * the returned value should be: '75F'
 * 
 * Hint: You can call your `temperatureCtoF` function from inside `temperatureInF`.
*/
function temperatureInF(/* code here */) {
  /* code here */
}


/**
 * ### Challenge `makePersonObject`
 * 
 * @instructions
 * This function should take an id, a name and an email as arguments,
 * and return an object with `id`, `name` and `email` properties.
 * 
 * For example, if we invoke `makePersonObject`
 * passing 5, 'Leia' and 'leia@leia.com' as arguments,
 * the returned value should look like:
 * {
 *   id: 5,
 *   name: "Leia",
 *   email: "leia@leia.com",
 * }
*/
function makePersonObject(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `getName`
 * 
 * @instructions
 * This function takes as its only argument
 * an object containing a `name` property,
 * and return a string that reads `Hello, my name is {name}`,
 * where `{name}` is the name stored in the object.
 * 
 * For example, if we invoke `getName`
 * passing { id: 1, name: 'Leia', email: 'leia@leia.com` } as the argument,
 * the returned value should look like `Hello, my name is Leia`.
*/
function getName(/* code here */) {
  /* code here */
}


/**
 * ### Challenge `appleIndex`
 * 
 * @instructions
 * This function takes as its only argument an array 
 * containing strings,
 * and returns the index in the array of the string 'apple'.
 * 
 * You may assume the string 'apple' will appear exactly 
 * once in the array.
 * 
 * For example, if we invoke `appleIndex`
 * passing in [ 'orange', 'grape', 'apple', 'banana', 'mango' ] as the argument,
 * the returned value should be: 2.
*/
function appleIndex(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `isItAnApple`
 * 
 * @instructions
 * This function takes as its only argument an array 
 * containing strings,
 * and returns an array of equal length containing the `true`
 * if the corresponding entry in the original array is 'apple' 
 * and `false` if it is anything else.
 * 
 * 
 * For example, if we invoke `isItAnApple`
 * passing in [ 'orange', 'apple', 'banana', 'apples', 'apple', 'mango' ] as the argument,
 * the returned value should be: [ false, true, false, false, true, false ].
*/
function isItAnApple(/* code here */) {
  /* code here */
}



/*
// ⭐️ Example Test Data ⭐️

var inventory = [
  { id: 1, car_make: "Lincoln", car_model: "Navigator", car_year: 2009 },
  { id: 2, car_make: "Mazda", car_model: "Miata MX-5", car_year: 2001 },
  { id: 3, car_make: "Land Rover", car_model: "Defender Ice Edition", car_year: 2010 },
  { id: 4, car_make: "Honda", car_model: "Accord", car_year: 1983 },
  { id: 5, car_make: "Mitsubishi", car_model: "Galant", car_year: 1990 },
  { id: 6, car_make: "Honda", car_model: "Accord", car_year: 1995 },
  { id: 7, car_make: "Smart", car_model: "Fortwo", car_year: 2009 },
  { id: 8, car_make: "Audi", car_model: "4000CS Quattro", car_year: 1987 },
  { id: 9, car_make: "Ford", car_model: "Windstar", car_year: 1996 },
  { id: 10, car_make: "Mercedes-Benz", car_model: "E-Class", car_year: 2000 },
  { id: 11, car_make: "Infiniti", car_model: "G35", car_year: 2004 },
  { id: 12, car_make: "Lotus", car_model: "Esprit", car_year: 2004 },
  { id: 13, car_make: "Chevrolet", car_model: "Cavalier", car_year: 1997 },
  { id: 14, car_make: "Dodge", car_model: "Ram Van 1500", car_year: 1999 }
  /// ... Truncated
]
*/
/**
  * ### Example Array Challenge:
  * 
  * @instructions
  * get3rdCar() should return the string `The is a Land Rover Defender Ice Edition`
  * 
  *
  * NOTE: This example has been completed for you.
**/
function get3rdCar(inventory) {
  const the3rd = inventory[2];
  return `The is a ${the3rd.car_make} ${the3rd.car_model}`
}

// 👇 COMPLETE YOUR WORK BELOW 👇
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/**
 * ### Challenge `getCarInfoByIndex`
 * 
 * @instructions
 * getCarInfoByIndex takes two arguments:
 *     (1) an array which is an inventory of cars like the preview above (see ⭐️ Preview Test Data ⭐️)
 *     (2) a number which is the desired index in the array.
 * getCarInfoByIndex returns a string in the format `This is a {car_make} {car_model}`
 * 
 * For example, if getCarInfoByIndex is invoked with the inventory and the number 0,
 * it will return `This is a Lincoln Navigator`.
*/
function getCarInfoByIndex(inventory, index) {
  /* code here */
}

/**
 * ### Challenge `getLastCarInfo`
 * 
 * @instructions
 * getLastCarInfo takes a single argument:
 *     (1) an array which is an inventory of cars like the one inside /data/inventory.js.
 * getLastCarInfo returns a string in the format `This is a {car_make} {car_model}
 * 
 * For example, if getLastCarInfo is invoked passing the inventory inside /data/inventory.js,
 * it will return `This is a Lincoln Town Car`.
*/
function getLastCarInfo(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `getModelYears`
 * 
 * @instructions
 * We need the years from every car in the inventory!
 * getModelYears takes a single argument:
 *     (1) an array which is an inventory of cars like the one inside /data/inventory.js.
 * getModelYears returns an array containing all the 'car_year's in the inventory.
*/
function getModelYears(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `getCarInfoById`
 *  * * THIS ONE IS A STRETCH GOAL. ATTEMPT IT ONLY AFTER
 * COMPLETING ALL NON-STRETCH CHALLENGES IN THE REPOSITORY!
 * 
 * @instructions
 * getCarInfoById takes two arguments:
 *     (1) an array which is an inventory of cars like the one inside /data/inventory.js.
 *     (2) a number which is the desired car id (see how each car has its own unique id).
 * getCarInfoById returns a string in the format `This is a {car_make} {car_model}
 * 
 * For example, if getCarInfoById is invoked with the inventory and the number 1,
 * it will return `This is a Lincoln Navigator`.
*/
function getCarInfoById(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `getOlderCars`
 * * THIS ONE IS A STRETCH GOAL. ATTEMPT IT ONLY AFTER
 * COMPLETING ALL NON-STRETCH CHALLENGES IN THE REPOSITORY!
 * 
 * @instructions
 * We need a utility to find older cars!
 * getOlderCars takes two arguments:
 *     (1) an array which is an inventory of cars like the one inside /data/inventory.js.
 *     (2) a number which is the desired max year.
 * getOlderCars returns an array containing all the cars
 * with a `car_year` which is at most the given desired max year,
 * in the same order as they appear in the original inventory.
*/
function getOlderCars(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `getGermanCars`
 * * THIS ONE IS A STRETCH GOAL. ATTEMPT IT ONLY AFTER
 * COMPLETING ALL NON-STRETCH CHALLENGES IN THE REPOSITORY!
 * 
 * @instructions
 * We need a utility to find German cars!
 * getGermanCars takes a single argument:
 *     (1) an array which is an inventory of cars like the one inside /data/inventory.js.
 * getGermanCars returns an array containing all the cars
 * made by either `Audi` or `Mercedes-Benz` or `Volkswagen` or `BMW`,
 * in the same order as they appear in the original inventory.
*/
function getGermanCars(/* code here */) {
  /* code here */
}

/**
 * ### Challenge `carMaker`
 * THIS ONE IS A STRETCH GOAL. ATTEMPT IT ONLY AFTER
 * COMPLETING ALL NON-STRETCH CHALLENGES IN THE REPOSITORY!
 * 
 * @instructions
 * This function takes a single odometer argument (a number) and returns an object.
 * The returned object has the following characteristics:
 *     it has an `odometer` property that contains the argument passed in.
 *     it has a `drive` method that takes a distance as its argument, and
 *         (1) causes the odometer in the object to be increased by the distance,
 *         (2) returns the updated value of the `odometer`.
*/
function carMaker(/* code here */) {
  /* code here */
}

/// ////// END OF CHALLENGE /////////
/// ////// END OF CHALLENGE /////////
/// ////// END OF CHALLENGE /////////
if (typeof exports !== 'undefined') {
  // IGNORE: Test/Env Detected
  // For Node/Non-browser test env
  module.exports = module.exports || {}
  if (addNumbers) { module.exports.addNumbers = addNumbers }
  if (sayGoodbye) { module.exports.sayGoodbye = sayGoodbye }
  if (temperatureCtoF) { module.exports.temperatureCtoF = temperatureCtoF }
  if (temperatureInF) { module.exports.temperatureInF = temperatureInF }
  if (makePersonObject) { module.exports.makePersonObject = makePersonObject }
  if (getName) { module.exports.getName = getName }
  if (appleIndex) { module.exports.appleIndex = appleIndex }

  if (isItAnApple) { module.exports.isItAnApple = isItAnApple }
  

  
  if (carMaker) { module.exports.carMaker = carMaker }
  if (getCarInfoByIndex) { module.exports.getCarInfoByIndex = getCarInfoByIndex }
  if (getLastCarInfo) { module.exports.getLastCarInfo = getLastCarInfo }
  if (getCarInfoById) { module.exports.getCarInfoById = getCarInfoById }

  if (getModelYears) { module.exports.getModelYears = getModelYears }
  if (getOlderCars) { module.exports.getOlderCars = getOlderCars }
  if (getGermanCars) { module.exports.getGermanCars = getGermanCars }
 
}