javascript-basics/form_input.html at main · DEMiHAT/javascript-basics · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>Add or Multiply Two Numbers</title>
</head>
<body>
<h2>Add or Multiply Two Numbers</h2>

<form onsubmit="calculate(event)">
    <label>Enter First Number:</label>
    <input type="number" id="num1" required><br><br>

    <label>Enter Second Number:</label>
    <input type="number" id="num2" required><br><br>

    <button type="button" onclick="addNumbers()">Add</button>
    <button type="button" onclick="multiplyNumbers()">Multiply</button>
</form>

<h3 id="result"></h3>

<script>
    function addNumbers() {
        let a = parseFloat(document.getElementById("num1").value);
        let b = parseFloat(document.getElementById("num2").value);
        let sum = a + b;
        document.getElementById("result").innerHTML = "Sum = " + sum;
    }

    function multiplyNumbers() {
        let a = parseFloat(document.getElementById("num1").value);
        let b = parseFloat(document.getElementById("num2").value);
        let product = a * b;
        document.getElementById("result").innerHTML = "Product = " + product;
    }
</script>
</body>
</html>