Supported operators

Mathematical operators

== equals
!= does not equal
> greater than
< less than
>= greater than or equal to
<= less than or equal to

Other operators

or this or that
and this and that
contains You can use "contains" to check whether a string contains another string, for example:
{% if webapp1.items[0].name contains 'Jaguar' -%}
  This car is a Jaguar.
{% endif -%}
or to check whether an array contains a value. Assuming {{cars_available_now}} is an array containing car makes:
{% if cars_available_now contains 'Jaguar' -%}
  A Jaguar is available now.
{% endif -%}

Tip: What's the difference between %} and -%}? Here's how to handle Liquid generated whitespace.