a function that produces a generator that produces values in a range.

script.js

/**
 * Generates a range of values from `from` to `to`.
 * @param {number} from - The starting value of the range.
 * @param {number} to - The ending value of the range.
 * @returns {function} - A generator function that produces values in the range.
 */

const fromTo = (from, to) => {
  let array = [];

  for (let i = from; i < to; i++) {
    array.push(i);
  }

  let currentIndex = 0;

  return () => {
    const item = array[currentIndex];

    if (item === undefined) return null;

    currentIndex++;

    return item;
  };
};