/**
 * @function objectWithoutKeys
 * Rebuilds Object without banned keys.   returns copy of object
 * @param {*} obj
 * @param {string[]} bannedKeys
 */
function objectWithoutKeys(obj, ...bannedKeys) {
  const sanitizedKeys =
    Object.keys(obj).filter(k => bannedKeys.indexOf(k) === -1);

  let newObj = {};
  for (let i = 0; i < sanitizedKeys.length; i++) {
	  newObj[sanitizedKeys[i]] = user[sanitizedKeys[i]];
  }
  return newObj;
}

// Usage...

const user = {
  name: 'HELLO',
  age: 56,
  password: 'password',
  createdAt: new Date(),
};

console.log('user', user);
console.log('userWithoutPassword', objectWithoutKeys(user, 'password'));
console.log('userWithoutPasswordAndName', objectWithoutKeys(user, 'password', 'name'));