Write a program to check whether the last digit of a number is divisible by 3 or not using html css javascript
here's an example of an HTML, CSS, and JavaScript program that checks whether the last digit of a number entered by the user is divisible by 3 or not:
html
<!DOCTYPE html>
<html>
<head>
<style>
body {
font-family: Arial, sans-serif;
}
.container {
width: 300px;
margin: 0 auto;
text-align: center;
padding: 20px;
border: 1px solid #ccc;
border-radius: 5px;
background-color: #f7f7f7;
}
</style>
</head>
<body>
<div class="container">
<h2>Last Digit Divisibility Checker</h2>
<label for="number">Enter a number:</label>
<input type="number" id="number">
<button onclick="checkDivisibility()">Check</button>
<p id="result"></p>
</div>
<script>
function checkDivisibility() {
var numberInput = document.getElementById('number');
var resultElement = document.getElementById('result');
var number = parseInt(numberInput.value);
if (isNaN(number)) {
resultElement.innerText = 'Please enter a valid number.';
return;
}
var lastDigit = number % 10;
if (lastDigit % 3 === 0) {
resultElement.innerText = 'The last digit is divisible by 3.';
} else {
resultElement.innerText = 'The last digit is not divisible by 3.';
}
}
</script>
</body>
</html>This program creates a simple web page with an input field for the user to enter a number, a "Check" button to trigger the calculation, and a paragraph element to display the result. The JavaScript function `checkDivisibility()` is called when the button is clicked. It extracts the last digit of the entered number using the modulo operator `%` and then checks whether it's divisible by 3. The result is displayed on the webpage accordingly.
Output:
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