deepEqual

/**
 * @param {unknown} valueA
 * @param {unknown} valueB
 * @returns {boolean}
 */
export default function deepEqual(valueA, valueB) {
  if (valueA === valueB) {
    return true;
  }

  if (typeof valueA !== typeof valueB) {
    return false;
  }

  if (valueA === null || valueB === null) {
    return valueA === valueB;
  }

  if (typeof valueA !== 'object') {
    return false;
  }

  if (Array.isArray(valueA) !== Array.isArray(valueB)) {
    return false;
  }

  const keysA = Object.keys(valueA);
  const keysB = Object.keys(valueB);

  if (keysA.length !== keysB.length) {
    return false;
  }

  for (const key of keysA) {
    if (!keysB.includes(key)) {
      return false;
    }
    if (!deepEqual(valueA[key], valueB[key])) {
      return false;
    }
  }

  return true;
}