javascript pole wyboru

function validateRadio(radio) {
    return true;
}

<div class="row">
                <div class="column label-column">
                    <label>Radio</label>
                </div>
                <div class="column input-column">
                    <input type="radio" name="favouriteNumber" value="1"><label class="radio-label">1</label>
                    <input type="radio" name="favouriteNumber" value="2"><label class="radio-label">2</label>
                    <input type="radio" name="favouriteNumber" value="3"><label class="radio-label">3</label>


                </div>
            </div>

function validateRadio(radio) {
    const valid = (radio > 0);
    const input = document.querySelector("input[name='favouriteNumber']");
    if (valid) {

        input.className = "";

        const nameMessage = document.getElementById("radio-input-message");
        if (nameMessage) {
            nameMessage.parentElement.removeChild(nameMessage);
        }
    } else {

        input.className = "invalid";
        if (!document.getElementById("radio-input-message")) {
            const small = document.createElement("small");
            small.id = "radio-input-message";
            small.className = "invalid";
            small.innerText = "Zaznacz wymagane pole: 1,2 lub 3";
            input.parentElement.appendChild(small);
        }
    }
    return valid
}