HCI-JAVASCRIPT-PROGRAMS/Armstrong.html at main · Mohammmedsaqib/HCI-JAVASCRIPT-PROGRAMS · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Armstrong Number Checker</title>
    <script>
        function isArmstrongNumber() {
            const inputElement = document.getElementById("numberInput");
            const resultElement = document.getElementById("result");

            const number = parseInt(inputElement.value);

            if (!isNaN(number)) {
                const numString = number.toString();
                const numDigits = numString.length;
                let sum = 0;

                for (let i = 0; i < numDigits; i++) {
                    const digit = parseInt(numString[i]);
                    sum += Math.pow(digit, numDigits);
                }

                if (sum === number) {
                    resultElement.textContent = `${number} is an Armstrong number.`;
                } else {
                    resultElement.textContent = `${number} is not an Armstrong number.`;
                }
            } else {
                resultElement.textContent = "Invalid input. Please enter a valid number.";
            }
        }
    </script>
</head>
<body>
    <label for="numberInput">Enter a number to check for Armstrong number:</label>
    <input id="numberInput" type="text">
    <button onclick="isArmstrongNumber()">Check Armstrong Number</button>
    <p id="result"></p>
</body>
</html>