Syntax
#(def?,%obj,%yes,%no)
%obj is the object to check to see if it is defined. %yes is the result if the object is defined. %no is the result if the object is not defined.
%yes and %no are always returned active.
Example
#(def?,an-object,yes,no) no #(def,an-object,a-value) #(def?,an-object,yes,no) yes