Marc Mintel
5397309103
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46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
import { getDefaultOptions } from "./_lib/defaultOptions.js";
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import { toDate } from "./toDate.js";
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/**
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* The {@link lastDayOfWeek} function options.
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*/
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/**
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* @name lastDayOfWeek
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* @category Week Helpers
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* @summary Return the last day of a week for the given date.
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*
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* @description
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* Return the last day of a week for the given date.
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* The result will be in the local timezone unless a context is specified.
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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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* @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.
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*
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* @param date - The original date
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* @param options - An object with options
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*
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* @returns The last day of a week
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*/
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export function lastDayOfWeek(date, options) {
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const defaultOptions = getDefaultOptions();
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const weekStartsOn =
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options?.weekStartsOn ??
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options?.locale?.options?.weekStartsOn ??
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defaultOptions.weekStartsOn ??
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defaultOptions.locale?.options?.weekStartsOn ??
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0;
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const _date = toDate(date, options?.in);
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const day = _date.getDay();
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const diff = (day < weekStartsOn ? -7 : 0) + 6 - (day - weekStartsOn);
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_date.setHours(0, 0, 0, 0);
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_date.setDate(_date.getDate() + diff);
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return _date;
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}
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// Fallback for modularized imports:
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export default lastDayOfWeek;
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