Date Calculator
About this app
Calculate dates with 21 days in between excluding holidays and weekends
Date Calculator Date Calculator Calculate dates with 21 days in between excluding holidays and weekends. Start Date: Calculate
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Source
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Date Calculator</title>
<meta name="description" content="Calculate dates with 21 days in between excluding holidays and weekends">
<meta name="keywords" content="date calculator, calculate dates, 21 days, exclude holidays, exclude weekends">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<script type="text/javascript">
try {
// App Javascript Goes Here. Place your entire script content inside the try block for error handling.
// Define an array of holidays
var holidays = ['2022-01-01', '2022-07-04', '2022-12-25'];
// This will run when the DOM is ready.
document.addEventListener("DOMContentLoaded", function () {
// Add event listener to the calculate button
$("#calculate").on("click", function () {
// Get the start date from the input
var startDate = $("#start-date").val();
// Clear the previous results
$("#result").empty();
// Calculate the dates
for (var i = 0; i < 6; i++) {
// Add 21 days to the start date
var calculatedDate = addDays(startDate, 21 * i);
// Check if the calculated date falls on a weekend or holiday
if (!isWeekend(calculatedDate) && !isHoliday(calculatedDate)) {
// Create a new list item element
var listItem = $("<li>").text(calculatedDate);
// Append the list item to the result list
$("#result").append(listItem);
}
}
});
});
// Function to add days to a date
function addDays(date, days) {
var result = new Date(date);
result.setDate(result.getDate() + days);
return result.toISOString().split('T')[0];
}
// Function to check if a date falls on a weekend
function isWeekend(date) {
var day = new Date(date).getDay();
return day === 0 || day === 6;
}
// Function to check if a date is a holiday
function isHoliday(date) {
return holidays.includes(date);
}
} catch (error) {
// This will throw the error to the parent window.
throw error;
}
</script>
<style>
/* App CSS Goes Here */
</style>
</head>
<body>
<div id="main-container" class="container">
<h1>Date Calculator</h1>
<p>Calculate dates with 21 days in between excluding holidays and weekends.</p>
<div class="mb-3">
<label for="start-date" class="form-label">Start Date:</label>
<input type="date" id="start-date" class="form-control">
</div>
<button id="calculate" class="btn btn-primary">Calculate</button>
<ul id="result" class="mt-3"></ul>
</div>
</body>
</html>
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