jquery两位小数点

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery 两位小数点示例</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <input type="text" id="price" placeholder="输入价格">
    <button id="format">格式化</button>
    <p id="formattedPrice"></p>

    <script>
        $(document).ready(function() {
            $('#format').click(function() {
                var price = parseFloat($('#price').val());
                if (!isNaN(price)) {
                    $('#formattedPrice').text(price.toFixed(2));
                } else {
                    $('#formattedPrice').text('请输入有效的数字');
                }
            });
        });
    </script>
</body>
</html>

var formattedPrice = price.toFixed(2);
formattedPrice = parseFloat(formattedPrice).toFixed(2);