or condition in twig code example

Example 1: twig if statement

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

Example 2: use or and in twig statement

//For Multiple Condition
{%if ( fields | length > 0 ) or ( trans_fields | length > 0 ) %}

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

Example 3: twig if multi condition

Expressions can be used in {% blocks %} and ${ expressions }.

Operator    Description
==          Does the left expression equal the right expression?
+           Convert both arguments into a number and add them.
-           Convert both arguments into a number and substract them.
*           Convert both arguments into a number and multiply them.
/           Convert both arguments into a number and divide them.
%           Convert both arguments into a number and calculate the rest of the integer division.
~           Convert both arguments into a string and concatenate them.
or          True if the left or the right expression is true.
and         True if the left and the right expression is true.
not         Negate the expression.