Types

The seven types, with the first line of each description from the LSL definitions and the examples from the wiki’s types overview:

Type	Example	Definition
`integer`	`42`	32 bit integer value.
`float`	`3.14159`	32 bit floating point value.
`string`	`"Hello, world!"`	Text data.
`key`	`"1fc26194-b2c1-e5e3-20e5-45cb3ae7f73e"`	A 128 bit unique identifier (UUID).
`vector`	`<1.0, 2.0, 3.0>`	A vector is a data type that contains a set of three float values.
`rotation`	`<0.0, 0.0, 0.0, 1.0>`	Rotation type is one of several ways to represent an orientation in 3D.
`list`	`[42, 3.14159, "value"]`	A collection of other data types.

From the wiki on pass-by-value: “LSL as a language uses pass‑by‑value for all types.” and “Built in functions will never modify the variables used as parameters.”

Typecasting is written (type), for example string message = "The result is:" + (string)result; (from the operators table).

Reference

All types
Operators
Errors: “Lists may not contain lists”

Quotations and examples are from the Second Life Wiki pages Category:LSL Types (revision 1217686, 2024-11-27) and LSL Operators (revision 1216567, 2024-04-30); history, by Second Life Wiki contributors, under CC BY-SA 3.0. Last wiki edit: 2024-11-27.