app/node_modules/date-fns/esm/isWeekend/index.js

import toDate from "../toDate/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
/**
 * @name isWeekend
 * @category Weekday Helpers
 * @summary Does the given date fall on a weekend?
 *
 * @description
 * Does the given date fall on a weekend?
 *
 * @param {Date|Number} date - the date to check
 * @returns {Boolean} the date falls on a weekend
 * @throws {TypeError} 1 argument required
 *
 * @example
 * // Does 5 October 2014 fall on a weekend?
 * const result = isWeekend(new Date(2014, 9, 5))
 * //=> true
 */
export default function isWeekend(dirtyDate) {
  requiredArgs(1, arguments);
  var date = toDate(dirtyDate);
  var day = date.getDay();
  return day === 0 || day === 6;
}