date.js

/// Weekday: 1 = sunday, 2 = monday, 3 = tuesday, 4 = wednesday, 5 = thursday, 6 = friday, 7 = saturday.
/// WeekDiff: -2 = 2 weeks ago, -1 = 1 week ago, 0 = current week, 1 = next week, 2 = next 2 weeks.
/// Examples: 
///     - `getDateForWeekDayInWeek(1, 0)` will return mondays date for the current week.
///     - `getDateForWeekDayInWeek(7, -1)` will return sundays date for the last week.
function getDateForWeekDayInWeek(weekday, weekDiff = 0) {
    let d = new Date();
    d.setDate(d.getDate() - (d.getDay() + (7 - (weekday - 1))));

    weekDiff += 1;

    let newDate = new Date(d.setDate(d.getDate() + weekDiff * 7));
    return newDate.toLocaleDateString("en-us", {
        day: "2-digit",
        month: "2-digit",
        year: "numeric"
    });
}
window.wb = window.wb || {};
window.wb.getDateForWeekDayInWeek = getDateForWeekDayInWeek;


// Debug
console.log(window.wb);