是否在Typescript中检查日期是否有效？

function isDateValid(dateString: string): boolean {
  const date = new Date(dateString);
  const year = date.getFullYear();
  const month = date.getMonth();
  const day = date.getDate();

  // 检查年、月、日是否在有效范围内
  const isValidYear = year >= 1900 && year <= 9999;
  const isValidMonth = month >= 0 && month <= 11;
  const isValidDay = day >= 1 && day <= 31;

  return isValidYear && isValidMonth && isValidDay;
}

// 示例用法
const date1 = '2022-01-01';
console.log(isDateValid(date1)); // 输出 true

const date2 = '2022-02-30';
console.log(isDateValid(date2)); // 输出 false