Why use functions here? Understand Functional Programming Terminology

JavaScript
1

Tell us what’s happening:

Hello all, I have complete this challenge but I am a little confused by the 2 declarations up top, prepareGreenTea and prepareBlackTea. If all they do is a return a string, why make them functions at all?

Could you just write: const prepareGreenTea = ‘green tea’; ?

If you did that, couldn’t you eliminate one step in the for loop, and just push green or black tea x times to the empty array?

Thank you for your help!

Your code so far


/**
 * A long process to prepare green tea.
 * @return {string} A cup of green tea.
 **/
const prepareGreenTea = () => 'greenTea';

/**
 * A long process to prepare black tea.
 * @return {string} A cup of black tea.
 **/
const prepareBlackTea = () => 'blackTea';

/**
 * Get given number of cups of tea.
 * @param {function():string} prepareTea The type of tea preparing function.
 * @param {number} numOfCups Number of required cups of tea.
 * @return {Array<string>} Given amount of tea cups.
 **/
const getTea = (prepareTea, numOfCups) => {
  const teaCups = [];

  for(let cups = 1; cups <= numOfCups; cups += 1) {
    const teaCup = prepareTea();
    teaCups.push(teaCup);
  }

  return teaCups;
};

// Add your code below this line

const tea4GreenTeamFCC = getTea(prepareGreenTea, 27); // :(
const tea4BlackTeamFCC = getTea(prepareBlackTea, 13); // :(

// Add your code above this line

console.log(
  tea4GreenTeamFCC,
  tea4BlackTeamFCC
);

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/understand-functional-programming-terminology

3

They are very unnecessary and have nothing to do with functional programming.
I’d prefer your alternative over this one which involves unnecessary function call.