Notes

<!-- Include jQuery -->
<script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>

<script>
function getIso8601WeekOfYear(time) {
// Your week calculation logic here
}

function generateManyDaysDates(startDate, endDate) {
// Your date generation logic here
}

function processData() {
var sendData = {
Regular0hrs: [],
Regular1hrs: [],
Regular2hrs: [],
Regular3hrs: [],
Regular4hrs: [],
Regular5hrs: [],
Regular6hrs: []
};

var startDate = new Date(2023, 10, 27); // Months are 0-indexed
var endDate = new Date(2023, 11, 24);

var manyAllowedDays = [0, 1, 2, 3, 4, 5, 6];

var previousWeekNo = 0;
var previousMonth = 0;
var previouslyActive = "";

var testcases = generateManyDaysDates(startDate, endDate);

$.each(testcases, function(index, date) {
var weekNumber = getIso8601WeekOfYear(date);

if (previousWeekNo === weekNumber && previousMonth === date.getMonth()) {
// previouslyActive = "Regular1hrs";
} else {
previousWeekNo = weekNumber;
switch (previouslyActive) {
case "Regular0hrs":
previouslyActive = "Regular1hrs";
break;
case "Regular1hrs":
previouslyActive = "Regular2hrs";
break;
case "Regular2hrs":
previouslyActive = "Regular3hrs";
break;
case "Regular3hrs":
previouslyActive = "Regular4hrs";
break;
case "Regular4hrs":
previouslyActive = "Regular5hrs";
break;
case "Regular5hrs":
previouslyActive = "Regular6hrs";
break;
default:
previouslyActive = "Regular0hrs";
break;
}
}

switch (previouslyActive) {
case "Regular0hrs":
sendData.Regular0hrs.push(date);
break;
case "Regular1hrs":
sendData.Regular1hrs.push(date);
break;
case "Regular2hrs":
sendData.Regular2hrs.push(date);
break;
case "Regular3hrs":
sendData.Regular3hrs.push(date);
break;
case "Regular4hrs":
sendData.Regular4hrs.push(date);
break;
case "Regular5hrs":
sendData.Regular5hrs.push(date);
break;
case "Regular6hrs":
sendData.Regular6hrs.push(date);
break;
default:
break;
}

previousMonth = date.getMonth();
});

console.log(sendData);
// You can use sendData as needed.
}

// Call your processData function when the document is ready or when needed
$(document).ready(function() {
processData();
});
</script>