Can a Handler Differentiate Between Empty & Missing Parameters?

Jim Ault JimAultWins at yahoo.com
Thu Mar 9 16:10:06 EST 2006


You could just go with a param list

the params
--------------------
on gotHere aa,bb,cc
  answer aa && BB && CC
  answer the params
  if the number of items in the params < 2 then
    doThis
  end if
end gotHere

gotHere "His","tie","was",1,2,3,4,"very", "loud"
------------------------------

Jim Ault
Las Vegas

On 3/9/06 12:20 PM, "Ken Ray" <kray at sonsothunder.com> wrote:

> On 3/9/06 2:05 PM, "Rob Cozens" <rcozens at pon.net> wrote:
>> Given a handler such as:
>> 
>> on myHandler requiredParam, at optionalParam
>> 
>> can myHandler differentiate between
>> 
>> put empty into optionalParam
>> myHandler requiredParam,optionalParam
>> 
>> and
>> 
>> myHandler requiredParam,
>> 
> 





More information about the Use-livecode mailing list