@exists() Function |
![]() ![]() ![]() |
@exists() function is used to check whether the given symbol exists. If the symbol exist, whether its value is empty or not, true otherwise false is returned. Syntax: @exists(symbol) symbol An MScript symbol.
exists() is opponent of isnull() function.
Examples: @doif( exists(i:NAME) ) .. @doend()
@vof(exists(i:SSTR) ? set(s:/si/SSTR, i:SSTR) ) @// Perform the assignment if request parameter SSTR exists in the request.
|