How to differenciate odd and even rows with Twig?

even-odd-row.twig

<table>
    {% for record in records %}
        <tr class="record{% if loop.index is divisibleby(2) %}even{% else %}odd{% endif %}">
            <td>{{ record.id }}</td>
            <td>{{ record.title }}</td>
        </tr>
    {% endfor %}
</table>

this works too:

{% if loop.index is even %} ... {% else %} ... {% endif %}