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Conditionals

Control prompt flow with conditional statements.

Syntax​

{% if condition %}
    content
{% elif other_condition %}
    other content
{% else %}
    fallback content
{% endif %}

Basic Example​

function MyFunc(user: User) -> string {
    prompt #"
        {% if user.is_active %}
            Welcome back, {{ user.name }}!
        {% else %}
            Please activate your account.
        {% endif %}
    "#
}

Comparison Operators​

OperatorDescription
==Equal
!=Not equal
<Less than
>Greater than
<=Less than or equal
>=Greater than or equal
{% if score >= 90 %}
    Grade: A
{% elif score >= 80 %}
    Grade: B
{% elif score >= 70 %}
    Grade: C
{% else %}
    Grade: F
{% endif %}

Logical Operators​

OperatorDescription
andBoth conditions true
orEither condition true
notNegation
{% if user.is_active and user.has_subscription %}
    Access granted
{% endif %}

{% if not user.is_banned %}
    Welcome!
{% endif %}

Truthiness​

These values are considered false:

  • false
  • null
  • 0
  • Empty string ""
  • Empty array []
  • Empty object {}
{% if items %}
    {{ items|length }} items found
{% else %}
    No items
{% endif %}

Inline Conditionals​

Use ternary-style expressions:

{{ "Yes" if is_valid else "No" }}
{{ user.name if user else "Guest" }}

Testing with Filters​

Combine with filters for complex conditions:

{% if items|length > 0 %}
    First item: {{ items|first }}
{% endif %}

{% if text|lower == "hello" %}
    Greeting detected
{% endif %}

See Also​