twig ifchildren in an if statement code example

Example 1: if else twig

{% if product.stock > 10 %}
   Available
{% elseif product.stock > 0 %}
   Only {{ product.stock }} left!
{% else %}
   Sold-out!
{% endif %}

Example 2: twig if statement

{% if users %}
    <ul>
        {% for user in users %}
            <li>{{ user.username|e }}</li>
        {% endfor %}
    </ul>
{% endif %}