Any expression can make use of the built in functions. These are categorised below for easy searching.
| Alphabetic Listing | An alphabetical list of all functions. |
| Array Handling | Functions which handle arrays. |
| Type Conversions | Functions which can convert from one type of object to another. |
| Date/Time Functions | Functions which handle dates. |
| Filters and Lookups | Functions which can be used to define filters conditions or can be use to perform lookups on Pipes. |
| Logical Functions | Functions which compare values and return a true or false result. |
| Math Functions | Functions which operate on numbers. |
| Script Functions | Functions which can be used to control the flow of logic within a script. |
| Geometric Functions | Functions which handle spatial calculations. |
| Text Functions | Functions which operate on strings. |