Brightsign BrightScript 2 Reference Guide Uživatelský manuál stáhnout pdf (Strana 22)

Scope

BrightScript uses the following scoping rules:

 Currently all related BrightScript code must reside in one file. This set of code is

known as a “module”.

 BrightScript does not support global variables. Except, there is one hard-coded

global variable “global” that is an interface to the global object. The global object

contains all global library functions.

 Functions declared with the FUNCTION statement are at global scope, unless

they are anonymous, in which case they are local scope.

 Local variables exist with function Scope. If a function calls another function,

that new function has its own scope.

 Labels exist in function scope.

 Block Statements (like FOR-NEXT or WHILE-END WHILE) do not create a

separate scope

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 58 59

Žádné komentáře

Brightsign BrightScript 2 Reference Guide Uživatelský manuál Strana 22