JavaScript Question-Answer

Why the code is not working?

<html>
    <body>
        <input id="billinput" type="number" placeholder="0" />

        <script>
            const billInput = document.getElementById('billinput');
            function cat() {
                let billInputValue = billInput.value;
                console.log(billInputValue);
            }
            cat();
        </script>
    </body>
</html>

Answer: use value instead of placeholder, also you can add optional button to call the function
<html>
<body>
<input id="billinput" type="number" value="0" />
<input type="button" value="Click" onclick="cat()">

<script>
const billInput = document.getElementById('billinput');
function cat() {
let billInputValue = billInput.value;
console.log(billInputValue);
}
cat();
</script>
</body>
</html>