Marc Mintel
5397309103
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38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
import { addDays } from "./addDays.mjs";
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import { getDay } from "./getDay.mjs";
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/**
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* @name nextDay
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* @category Weekday Helpers
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* @summary When is the next day of the week?
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*
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* @description
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* When is the next day of the week? 0-6 the day of the week, 0 represents Sunday.
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*
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* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
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*
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* @param date - The date to check
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* @param day - day of the week
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*
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* @returns The date is the next day of week
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*
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* @example
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* // When is the next Monday after Mar, 20, 2020?
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* const result = nextDay(new Date(2020, 2, 20), 1)
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* //=> Mon Mar 23 2020 00:00:00
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*
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* @example
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* // When is the next Tuesday after Mar, 21, 2020?
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* const result = nextDay(new Date(2020, 2, 21), 2)
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* //=> Tue Mar 24 2020 00:00:00
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*/
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export function nextDay(date, day) {
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let delta = day - getDay(date);
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if (delta <= 0) delta += 7;
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return addDays(date, delta);
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}
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// Fallback for modularized imports:
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export default nextDay;
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