If is the conditional block
{% if user.admin %}
Admin user!
{% else %}
Not admin user
{% endif %}
There are {% if count < 5 %} less {% else %} more {% endif %} items than you need.
Some examples on how to work with different kind of conditions:
{% if user.email == empty %}
Please enter your e-mail address
{% endif %}
{% if user.name == 'peter' and user.name != 'John' %}
Hello you, Non-John Peter!
{% endif %}
{% if ball.count < 1 %}
You have no balls
{% endif %}
# Check if array contains desired value, e.g. ['foo', 'bar']
{% if array contains 'foo' %}
There is a 50/50 chance that this array also contains "bar" :)
{% endif %}
# Check if string contains desired value, e.g 'hello world'
{% if some_string contains 'hello' %}
String contains "hello"
{% endif %}