Introduction

FEEL includes many built-in functions. These functions can be invoked in expressions and unary-tests.

contains("[email protected]", ".com")
// invoke function with positional arguments

contains(string: "[email protected]", match: ".de")
// invoke function with named arguments

Read more about functions here.

This section is split into functions based on their primary operational data type:

• Boolean
• String
• Numeric
• List
• Context
• Temporal
• Range

Additionally, there are conversion functions that allow you to construct new values of a data type (factory functions). Functions not matching any of the above categories are listed in the miscellaneous section.