Marc Mintel
5397309103
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37 lines
1.1 KiB
Plaintext
37 lines
1.1 KiB
Plaintext
import { toDate } from "./toDate.mjs";
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import { constructFrom } from "./constructFrom.mjs";
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/**
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* @name addDays
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* @category Day Helpers
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* @summary Add the specified number of days to the given date.
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*
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* @description
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* Add the specified number of days to the given date.
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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 be changed
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* @param amount - The amount of days to be added.
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*
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* @returns The new date with the days added
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*
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* @example
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* // Add 10 days to 1 September 2014:
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* const result = addDays(new Date(2014, 8, 1), 10)
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* //=> Thu Sep 11 2014 00:00:00
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*/
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export function addDays(date, amount) {
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const _date = toDate(date);
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if (isNaN(amount)) return constructFrom(date, NaN);
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if (!amount) {
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// If 0 days, no-op to avoid changing times in the hour before end of DST
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return _date;
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}
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_date.setDate(_date.getDate() + amount);
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return _date;
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}
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// Fallback for modularized imports:
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export default addDays;
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