Conditional Compilation Variables (Windows Scripting - JScript)
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.
Warning
Conditional compilation is supported in all versions of Internet Explorer prior to Internet Explorer 11. Starting with Internet Explorer 11 Standards mode, and in Windows 8.x Store apps, conditional compilation is not supported.
Variables
Variable |
Description |
|---|---|
@_win32 |
True if running on a Win32 system. |
@_win16 |
True if running on a Win16 system. |
@_mac |
True if running on an 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 JScript scripting engine. |
@_jscript_version |
Contains the JScript version number in major.minor format. |