62 lines
2 KiB
TypeScript
62 lines
2 KiB
TypeScript
import type { ContextOptions, Interval, StepOptions } from "./types.js";
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/**
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* The {@link eachYearOfInterval} function options.
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*/
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export interface EachYearOfIntervalOptions<DateType extends Date = Date>
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extends StepOptions,
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ContextOptions<DateType> {}
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/**
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* The {@link eachYearOfInterval} function result type. It resolves the proper data type.
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* It uses the first argument date object type, starting from the date argument,
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* then the start interval date, and finally the end interval date. If
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* a context function is passed, it uses the context function return type.
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*/
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export type EachYearOfIntervalResult<
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IntervalType extends Interval,
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Options extends EachYearOfIntervalOptions | undefined,
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> = Array<
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Options extends EachYearOfIntervalOptions<infer DateType>
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? DateType
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: IntervalType["start"] extends Date
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? IntervalType["start"]
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: IntervalType["end"] extends Date
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? IntervalType["end"]
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: Date
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>;
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/**
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* @name eachYearOfInterval
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* @category Interval Helpers
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* @summary Return the array of yearly timestamps within the specified time interval.
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*
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* @description
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* Return the array of yearly timestamps within the specified time interval.
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*
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* @typeParam IntervalType - Interval type.
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* @typeParam Options - Options type.
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*
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* @param interval - The interval.
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* @param options - An object with options.
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*
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* @returns The array with starts of yearly timestamps from the month of the interval start to the month of the interval end
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*
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* @example
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* // Each year between 6 February 2014 and 10 August 2017:
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* const result = eachYearOfInterval({
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* start: new Date(2014, 1, 6),
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* end: new Date(2017, 7, 10)
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* })
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* //=> [
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* // Wed Jan 01 2014 00:00:00,
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* // Thu Jan 01 2015 00:00:00,
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* // Fri Jan 01 2016 00:00:00,
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* // Sun Jan 01 2017 00:00:00
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* // ]
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*/
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export declare function eachYearOfInterval<
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IntervalType extends Interval,
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Options extends EachYearOfIntervalOptions | undefined = undefined,
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>(
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interval: IntervalType,
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options?: Options,
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): EachYearOfIntervalResult<IntervalType, Options>;
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