ex3-tellFortune.js

/*------------------------------------------------------------------------------
Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-3-be-your-own-fortune-teller

Why pay a fortune teller when you can just program your fortune yourself?

1. Create four arrays, `numKids`, `partnerNames`, `locations` and `jobTitles`. 
   Give each array five random values that have to do with the name of 
   the variable.

2. Complete the function `selectRandomly`. This function should take an array 
   as a parameter and return a randomly selected element as its return value.

3. Complete the function named `tellFortune` as follows:

   - It should take four arguments (in the order listed): 
     * the array with the options for the number of children, 
     * the array with the options for the partner's name, 
     * the array with the options for the geographic location and 
     * the array with the options for the job title.
   - It should use the `selectRandomly` function to randomly select values from 
     the arrays.
   - It should return a string: "You will be a `jobTitle` in `location`, 
    married to `partnerName` with `numKids` kids."

4. Call the function three times, passing the arrays as arguments. Use `
   console.log` to display the results.

Note: The DRY principle is put into practice here: instead of repeating the code to 
randomly select array elements four times inside the `tellFortune` function 
body, this code is now written once only in a separated function.
-----------------------------------------------------------------------------*/

// This function should take an array as its parameter and return
// a randomly selected element as its return value.
function selectRandomly(arr) {
  const randomIndex = Math.floor(Math.random() * arr.length)
  return arr[randomIndex]
}

export function tellFortune(numKids, partnerNames, locations, jobTitles) {
  const kids = selectRandomly(numKids)
  const partner = selectRandomly(partnerNames)
  const location = selectRandomly(locations)
  const job = selectRandomly(jobTitles)

  return `You will be a ${job} in ${location}, married to ${partner} with ${kids} kids.`
}

function main() {
  const numKids = [1, 2, 3, 4, 5];

  const partnerNames = [
    'Sharon',
    'Anna',
    'Veronika',
    'Stacy',
    'Jennie'
  ];

  const locations = [
    'Amsterdam',
    'Haarlem',
    'Paris',
    'Rotterdam',
    'Groningen'
  ];

  const jobTitles = [
    'Front dev',
    'Back dev',
    'DevOps',
    'Q&A',
    'Cleaner'
  ];

  console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
  console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
  console.log(tellFortune(numKids, partnerNames, locations, jobTitles));
}

// ! Do not change or remove the code below
if (process.env.NODE_ENV !== 'test') {
  main();
}