Activates conditional compilation support.
@cc_on
The @cc_on statement activates conditional compilation in the scripting engine.
It is strongly recommended that you use the @cc_on statement in a comment, so that browsers that do not support conditional compilation will accept your script as valid syntax:
/*@cc_on*/ ... (remainder of script)
Alternatively, an @if or @set statement outside of a comment also activates conditional compilation.
Conditional Compilation | Conditional Compilation Variables | @if Statement | @set Statement