Restrict post dates into Full Calendar - calendar

Question

I´m developing Full Calendar like this, but instead of creating events I just get it from the database.
So now I developing Backend to receive days of the week of an event like this:
As you can see I receive booleans within days of the week
Now I want to restrict if one of this days come false, calendar doesn´t allow me to do that
JS Function:
function isGreaterThanToday(date) {
return date < hoy ? false : true;
}
function updateAssignedEvent(event, delta, revertFunc) {
if (!isGreaterThanToday(event.start)) {
mostrarError("Cant post an event today or before today.");
revertFunc();
return;
}
event.start = $.fullCalendar.moment(moment($.fullCalendar.moment(event.start.format())._i));
event.end = event.end ? $.fullCalendar.moment(moment($.fullCalendar.moment(event.end.format())._i)) : event.start;
event.color = getTareaCalendarioColor(event.tipoResponsable,
event.estatusTarea,
event.start,
event.end.diff(event.start, 'hours') <= 24 ? event.start : event.end);
updateEvent(event).then(function(data) {
if (!data.success) {
revertFunc();
return;
}
event.end = event.end !== event.start ? event.end.add(1, 'day') : event.end;
$calendar.fullCalendar('updateEvent', event);
}, function(error) {
revertFunc();
});
}
As you can see I have a function calledfunction isGreaterThanToday(date), I use it to restrict post an event today or before today. I want to do something like this, but I don´t have an idea of how can I call these booleans and compare for example Sunday of the calendar with Sunday of boolean receive. Can anyone help me there? Regards
For example into my function I add:
if (event.accion.agendarDomingo != true) {
mostrarError("Sunday is not allowed");
revertFunc();
return;
}
But how can I compare with my event.start and event.end DAY?

Answer 1

To get day of week using moment.js use 'e' as a format. result will be 0..6 Monday to Sunday.
event.start.format('e');
To check if the time is passed use isAfter function:
If nothing is passed to moment#isAfter, it will default to the current time.
moment(event.start).isAfter();
Now these two validation constraints combined would look like this:
function isDateValid(date) {
return date.format('e') !== "6" && moment(date).isAfter();
}