react-day-picker
Version:
Customizable Date Picker for React
28 lines • 1.13 kB
JavaScript
import { defaultDateLib } from "../classes/DateLib.js";
/**
* Checks if a date range contains one or more specified days of the week.
*
* @since 9.2.2
* @param range - The date range to check.
* @param dayOfWeek - The day(s) of the week to check for (`0-6`, where `0` is
* Sunday).
* @param dateLib - The date utility library instance.
* @returns `true` if the range contains the specified day(s) of the week,
* otherwise `false`.
* @group Utilities
*/
export function rangeContainsDayOfWeek(range, dayOfWeek, dateLib = defaultDateLib) {
const dayOfWeekArr = !Array.isArray(dayOfWeek) ? [dayOfWeek] : dayOfWeek;
let date = range.from;
const totalDays = dateLib.differenceInCalendarDays(range.to, range.from);
// iterate at maximum one week or the total days if the range is shorter than one week
const totalDaysLimit = Math.min(totalDays, 6);
for (let i = 0; i <= totalDaysLimit; i++) {
if (dayOfWeekArr.includes(date.getDay())) {
return true;
}
date = dateLib.addDays(date, 1);
}
return false;
}
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