Understanding the Ballerina type system
The type system is the most important part of learning any programming language. The Ballerina type system lets developers define variables with different structures. Starting from basic types, a developer can build much more complicated data structures. Ballerina type systems include data types as well as behavioral types such as functions and errors. Ballerina types can be separated into five categories, as follows:
- Simple types: These are the primitive data types of the Ballerina language, such as
boolean
,float
, and so on. These types are immutable by nature. - Structured types: These are simple types organized in structures, such as arrays and maps.
- Sequence types: This is a combination of simple and structured types.
- Behavioral types: Rather than representing data, these types are used to handle behaviors of the Ballerina language. These types include errors, functions, objects, and so on.
- All other types.
The...