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nghiepdev/typing.ts

Last active June 4, 2023 08:21
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Typing for TimeString and DateString
Raw
typing.ts
type Digit = 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9;
type H = `${0 | 1}${Digit}` | `${2}${0 | 1 | 2 | 3}`;
type M = `${0 | 1 | 2 | 3 | 4 | 5}${Digit}`;
type S = `${0 | 1 | 2 | 3 | 4 | 5}${Digit}`;
export type TimeString = `${H}:${M}` | `${H}:${M}:${S}`; // 03:45 or 03:45:56
type Mo = Exclude<`0${Digit}` | `1${0 | 1 | 2}`, '00'>;
type Da = Exclude<`${0 | 1 | 2}${Digit}` | `3${0 | 1}`, '00'>;
export type DateString = `${number}-${Mo}-${Da}`; // 2017-02-23
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