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import addDays from "../addDays/index.js";
import getDay from "../getDay/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
/**
* @name nextDay
* @category Weekday Helpers
* @summary When is the next day of the week?
*
* @description
* When is the next day of the week? 0-6 the day of the week, 0 represents Sunday.
*
* @param {Date | number} date - the date to check
* @param {Day} day - day of the week
* @returns {Date} - the date is the next day of week
* @throws {TypeError} - 2 arguments required
*
* @example
* // When is the next Monday after Mar, 20, 2020?
* const result = nextDay(new Date(2020, 2, 20), 1)
* //=> Mon Mar 23 2020 00:00:00
*
* @example
* // When is the next Tuesday after Mar, 21, 2020?
* const result = nextDay(new Date(2020, 2, 21), 2)
* //=> Tue Mar 24 2020 00:00:00
*/
export default function nextDay(date, day) {
requiredArgs(2, arguments);
var delta = day - getDay(date);
if (delta <= 0) delta += 7;
return addDays(date, delta);
}
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