Marc Mintel
5397309103
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58 lines
1.8 KiB
Plaintext
58 lines
1.8 KiB
Plaintext
"use strict";
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exports.closestTo = closestTo;
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var _index = require("./_lib/normalizeDates.cjs");
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var _index2 = require("./closestIndexTo.cjs");
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var _index3 = require("./constructFrom.cjs");
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/**
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* The {@link closestTo} function options.
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*/
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/**
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* The {@link closestTo} 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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/**
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* @name closestTo
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* @category Common Helpers
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* @summary Return a date from the array closest to the given date.
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*
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* @description
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* Return a date from the array closest to the given date.
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*
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* @typeParam DateToCompare - Date to compare argument type.
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* @typeParam DatesType - Dates array argument type.
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* @typeParam Options - Options type.
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*
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* @param dateToCompare - The date to compare with
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* @param dates - The array to search
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*
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* @returns The date from the array closest to the given date or undefined if no valid value is given
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*
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* @example
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* // Which date is closer to 6 September 2015: 1 January 2000 or 1 January 2030?
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* const dateToCompare = new Date(2015, 8, 6)
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* const result = closestTo(dateToCompare, [
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* new Date(2000, 0, 1),
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* new Date(2030, 0, 1)
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* ])
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* //=> Tue Jan 01 2030 00:00:00
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*/
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function closestTo(dateToCompare, dates, options) {
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const [dateToCompare_, ...dates_] = (0, _index.normalizeDates)(
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options?.in,
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dateToCompare,
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...dates,
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);
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const index = (0, _index2.closestIndexTo)(dateToCompare_, dates_);
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if (typeof index === "number" && isNaN(index))
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return (0, _index3.constructFrom)(dateToCompare_, NaN);
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if (index !== undefined) return dates_[index];
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}
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