Initialize app

lulunac27a · lulunac27a · commit eacd1209a1a2 · 2025-06-07T09:25:12.000-05:00
diff --git a/app.js b/app.js
@@ -0,0 +1,19 @@
+const numberInput = document.getElementById('numberInput');
+const result = document.getElementById('result');
+function calculateSumOfDigits() {
+    const number = parseInt(numberInput.value);
+    if (isNaN(number)) {
+        result.textContent = 'Please enter a valid number.';
+        return;
+    }
+    const sum = calculateSum(number);
+    result.textContent = `Sum of digits: ${sum}`;
+}
+function calculateSum(number) {
+    let sum = 0;
+    while (number > 0) {
+        sum += number % 10;
+        number = Math.floor(number / 10);
+    }
+    return sum;
+}
diff --git a/index.html b/index.html
@@ -0,0 +1,9 @@
+<head>
+    <title>Sum of Digits</title>
+</head>
+<body>
+    <h1>Sum of Digits Calculator</h1>
+    <input type="number" id="numberInput">
+    <button onclick="calculateSumOfDigits()">Calculate</button>
+    Sum of Digits: <p id="result"></p>
+</body>
