ValidDate
约 154 字小于 1 分钟
2026-02-11
题目
Implement a type ValidDate, which takes an input type T and returns whether T is a valid date.
Leap year is not considered
Good Luck!
ValidDate<'0102'> // true
ValidDate<'0131'> // true
ValidDate<'1231'> // true
ValidDate<'0229'> // false
ValidDate<'0100'> // false
ValidDate<'0132'> // false
ValidDate<'1301'> // false解题思路
待补充
答案
type ValidDate<T extends string> = any验证
import type { Equal, Expect } from '@type-challenges/utils'
type cases = [
Expect<Equal<ValidDate<'0102'>, true>>,
Expect<Equal<ValidDate<'0131'>, true>>,
Expect<Equal<ValidDate<'1231'>, true>>,
Expect<Equal<ValidDate<'0229'>, false>>,
Expect<Equal<ValidDate<'0100'>, false>>,
Expect<Equal<ValidDate<'0132'>, false>>,
Expect<Equal<ValidDate<'1301'>, false>>,
Expect<Equal<ValidDate<'0123'>, true>>,
Expect<Equal<ValidDate<'0430'>, true>>,
Expect<Equal<ValidDate<'01234'>, false>>,
Expect<Equal<ValidDate<''>, false>>,
]参考
无
