Marc Mintel
5397309103
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62 lines
1.8 KiB
Plaintext
62 lines
1.8 KiB
Plaintext
"use strict";
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exports.clamp = clamp;
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var _index = require("./_lib/normalizeDates.cjs");
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var _index2 = require("./max.cjs");
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var _index3 = require("./min.cjs");
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/**
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* The {@link clamp} function options.
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*/
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/**
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* The {@link clamp} 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 clamp
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* @category Interval Helpers
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* @summary Return a date bounded by the start and the end of the given interval.
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*
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* @description
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* Clamps a date to the lower bound with the start of the interval and the upper
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* bound with the end of the interval.
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*
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* - When the date is less than the start of the interval, the start is returned.
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* - When the date is greater than the end of the interval, the end is returned.
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* - Otherwise the date is returned.
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*
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* @typeParam DateType - Date argument type.
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* @typeParam IntervalType - Interval argument type.
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* @typeParam Options - Options type.
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*
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* @param date - The date to be bounded
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* @param interval - The interval to bound to
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* @param options - An object with options
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*
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* @returns The date bounded by the start and the end of the interval
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*
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* @example
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* // What is Mar 21, 2021 bounded to an interval starting at Mar 22, 2021 and ending at Apr 01, 2021
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* const result = clamp(new Date(2021, 2, 21), {
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* start: new Date(2021, 2, 22),
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* end: new Date(2021, 3, 1),
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* })
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* //=> Mon Mar 22 2021 00:00:00
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*/
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function clamp(date, interval, options) {
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const [date_, start, end] = (0, _index.normalizeDates)(
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options?.in,
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date,
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interval.start,
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interval.end,
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);
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return (0, _index3.min)(
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[(0, _index2.max)([date_, start], options), end],
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options,
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);
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}
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