49 lines
1.5 KiB
TypeScript
49 lines
1.5 KiB
TypeScript
import type {
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ContextOptions,
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DateArg,
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LocalizedOptions,
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WeekOptions,
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} from "./types.js";
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/**
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* The {@link setDay} function options.
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*/
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export interface SetDayOptions<DateType extends Date = Date>
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extends LocalizedOptions<"options">,
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WeekOptions,
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ContextOptions<DateType> {}
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/**
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* @name setDay
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* @category Weekday Helpers
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* @summary Set the day of the week to the given date.
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*
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* @description
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* Set the day of the week 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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* @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 date to be changed
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* @param day - The day of the week of the new date
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* @param options - An object with options.
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*
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* @returns The new date with the day of the week set
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*
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* @example
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* // Set week day to Sunday, with the default weekStartsOn of Sunday:
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* const result = setDay(new Date(2014, 8, 1), 0)
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* //=> Sun Aug 31 2014 00:00:00
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*
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* @example
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* // Set week day to Sunday, with a weekStartsOn of Monday:
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* const result = setDay(new Date(2014, 8, 1), 0, { weekStartsOn: 1 })
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* //=> Sun Sep 07 2014 00:00:00
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*/
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export declare function setDay<
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DateType extends Date,
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ResultDate extends Date = DateType,
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>(
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date: DateArg<DateType>,
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day: number,
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options?: SetDayOptions<ResultDate>,
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): ResultDate;
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