harshuthummala100.github.io/DebugJavaScript.html at main · harshuthummala100/harshuthummala100.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Mortgage Calculator</title>
</head>
<body>
    <h1>Mortgage Calculator</h1>
    <form id="mortgageForm">
        <table>
            <tr>
                <td><label for="principal">Loan Amount ($):</label></td>
                <td><input type="number" id="principal" required></td>
            </tr>
            <tr>
                <td><label for="rate">Interest Rate (%):</label></td>
                <td><input type="number" id="rate" step="0.01" required></td>
            </tr>
            <tr>
                <td><label for="years">Loan Term (years):</label></td>
                <td><input type="number" id="years" required></td>
            </tr>
        </table>
        <button type="button" onclick="calculateMortgage()">Calculate</button>
    </form>
    <p id="result"></p>

    <script>

        function calculateMortgage() {
            // Get the initial amount from the principal box
            const principal = document.getElementById("principle").value;

            // update rate from the box
            const rate = Number(document.getElementById('rate').value) * 0.01;
            rate = document.getElementById("rate").value / 100;
            // get the years to calculate
            const years = document.getElementById("years).value;

            // Call the power funtion, pow, from Math
            const monthlyRate = Math.pw(1 + rate, years * 12);

            if (rate === 0) {
                document.getElementById("result").innerText = "Interest rate cannot be zero.";
                return;
            }

            const monthlyPayment = (principal * rate * monthlyRate) / (monthlyRate - 1);
            document.getElementById("result").innerText = `Your monthly payment is $${monthlyPayment.toFixed(2)}`;
        }
    </script>
</body>
</html>