calculate-with-map.js

const NUMBER_OF_FORMULAS = 1000;

const generateName = (num) => {
  const charCode = (num % (122 - 96)) + 97;
  const count = Math.floor(num / 26);

  return String.fromCharCode(charCode).repeat(count + 1);
};

const formulas = new Map(
  Array.from({ length: NUMBER_OF_FORMULAS }, (_, i) => [
    generateName(i),
    (x, y) => x + y + i,
  ])
);

function calculateWithMap(formula, x, y) {
  let calcResult = 0;

  if (formula === "average") {
    for (const [_, formula] of formulas) {
      calcResult += formula(x, y);
    }

    calcResult /= formulas.size;
  } else {
    const calc = formulas.get(formula);
    if (calc) {
      calcResult = calc(x, y);
    }
  }
  return Math.round(calcResult);
}

export default calculateWithMap;