Function isRecord

src/utils.ts:597–623

(
  value: unknown,
  requiredKeys: string[] | undefined = undefined
)

): value is Record<T[number], any>;
export function isRecord(value: unknown): value is Record<string, any>;
export function isRecord(
  value: unknown,
  requiredKeys: string[] | undefined = undefined
): value is Record<string, any> {
  if (!isObject(value)) {
    return false;
  }

  const ctor = (value as any).constructor;
  if (ctor && ctor.prototype) {
    if (!isObject(ctor.prototype)) {
      return false;
    }

    // Check to see if some method exists from the Object exists
    if (!HAS_OWN(ctor.prototype, 'isPrototypeOf')) {
      return false;
    }
  }

  if (requiredKeys) {
    const keys = Object.keys(value as Record<string, any>);
    return isSuperset(keys, requiredKeys);
  }

  return true;
}

type ListNode<T> = {
  value: T;