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