const deepFreeze = (obj) => {
  if (obj && typeof obj === "object" && !Object.isFrozen(obj)) {
    Object.getOwnPropertyNames(obj).forEach((prop) => {
      const value = obj[prop];
      if (value && typeof value === "object") deepFreeze(value);
    });
    Object.freeze(obj);
  }
  return obj;
};

const isFiniteNumber = (v) => typeof v === "number" && Number.isFinite(v);

export { deepFreeze, isFiniteNumber };