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Data Types

Similar to other programming languages, PRX employs a predefined set of data types. The following data types are currently supported.

Available Data Types

Type

Description

STR

String (e.g. "VALUE")

NUM

Positive or negative integer (e.g. -23)

BOOL

Boolean value (TRUE/FALSE)

LIST

List for values of any type (e.g. ["VAL1","VAL2","VAL3"])

VOID

Void (for missing parameters and return values)

OBJ

Object (for storing SmartJCL statement pointers)

Every variable in PRX is linked to a specific data type. Similarly, functions always accept input parameters and return values that match these data types. We will cover functions in more detail in a future chapter.

In certain scenarios, PRX attempts automatic data conversion. This occurs when:

A numerical value (NUM) is expected, but a string (STR) is provided.
A string (STR) is expected, but a numerical value (NUM) is provided.

Next up, we will modify values by using operators.