JavaScript tutorial:
Conditional compilation variables

The following predefined variables are available for conditional compilation. If a variable is not true, it is not defined and behaves as NaN when accessed.

Variable

Description

@_win32

true if running on a Win32 system.

@_win16

true if running on a Win16 system.

@_mac

true if running on a Apple Macintosh system.

@_alpha

true if running on a DEC Alpha processor.

@_x86

true if running on an Intel processor.

@_mc680x0

true if running on a Motorola 680x0 processor.

@_PowerPC

true if running on a Motorola PowerPC processor.

@_jscript

Always true.

@_jscript_build

Contains the build number of the JavaScript scripting engine.

@_jscript_version

Contains the JavaScript version number in major.minor format.

See Also: Conditional Compilation,@cc_on Statement, @if Statement, @set Statement