Brightsign BrightScript 3.0 Reference Manual Manuel d'utilisateur télécharger pdf (Page 8)

VARIABLES, LITERALS, AND TYPES

Identifiers

Identifiers are names of variables, functions, and labels. They also apply to BrightScript object methods (i.e. functions)

and interfaces (which appear after a dot "." operator). Identifiers have the following rules:

• Must start with an alphabetic character (a-z).

• May consist of alphabetic characters, numbers, or the underscore symbol ("_").

• Are not case sensitive.

• May be of any length.

• May not be a reserved word (see the Appendix B for a list of reserved words).

• (variables only) May end with an optional type declaration ("$" for a string, "%" for an integer, "!" for a float, "#" for

a double).

Examples

boy5

super_man$

42%

Types

BrightScript supports both dynamic typing and declared types. This means that every value has a type determined at

runtime, but variables can also be instructed to always contain a value of a specified type. If a value is assigned to a

variable that has a specified type, the type of the value will be converted to the variable type if possible. If conversion is

impossible, a runtime error will occur.

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Brightsign BrightScript 3.0 Reference Manual Manuel d'utilisateur Page 8