Template Syntax Reference

Complete reference for the Promptodex template variable syntax.

Basic variable

{{variableName}}

Replaced with the provided value. If no value is provided, becomes an empty string.

Variable with default

{{variableName:defaultValue}}

Uses defaultValue if no value is provided.

Whitespace handling

Whitespace inside braces is trimmed:

{{ name }}    → same as {{name}}
{{  name  }}  → same as {{name}}

Examples

Template	Variables	Result
Hello {{name}}!	{ name: "World" }	Hello World!
Hello {{name}}!	{}	Hello !
{{greeting:Hi}} {{name}}	{ name: "Matt" }	Hi Matt
{{greeting:Hi}} {{name}}	{ greeting: "Hey", name: "Matt" }	Hey Matt

Variable naming conventions

• Use descriptive names: topic, language, content
• Use camelCase for multi-word names: targetLanguage, outputFormat
• Avoid special characters — stick to letters and numbers