js检验日期格式

function isValidDateFormat(dateString) {
  const regex = /^\d{4}-\d{2}-\d{2}$/;
  if (!regex.test(dateString)) return false;
  const date = new Date(dateString);
  if (isNaN(date.getTime())) return false;
  const [year, month, day] = dateString.split('-').map(Number);
  return date.getFullYear() === year && date.getMonth() + 1 === month && date.getDate() === day;
}

console.log(isValidDateFormat("2023-10-05")); // true
console.log(isValidDateFormat("2023-13-05")); // false

function isValidDate(dateString) {
  const date = new Date(dateString);
  return !isNaN(date.getTime());
}

console.log(isValidDate("2023-10-05")); // true
console.log(isValidDate("2023-13-05")); // false

npm install date-fns

import { parseISO, isValid } from 'date-fns';

function isValidDateFormat(dateString) {
  return isValid(parseISO(dateString));
}

console.log(isValidDateFormat("2023-10-05")); // true
console.log(isValidDateFormat("2023-13-05")); // false