[Freeswitch-users] empty var expression

[Brian West]

be careful... you shouldn't have anything if the variable doesn't exist but are you using lua or js?

/b

On Jan 17, 2011, at 6:21 PM, Michael Collins wrote:

> Where is this variable getting or losing the "undef" value? Also, add this line to info and see what gets printed:
> 
> <action application="log" data="WARNING $var contains '${var}'"/>
> 
> That will print it out in purple letters to make it easier to see. FWIW, I tried this with various permutations of 'undefined' channel vars and expression="^$" always worked for me.
> 
> -MC