Using the IsEmpty logical function

While conditional functions are among the most useful functions available to…FileMaker Pro developers, another set of logical functions perform specific…tests and return a Boolean result.…These functions include IsEmpty and IsValid.…Boolean results simply mean you will either get a true or a false answer to your…question, so to speak.…With conditional functions you can determine what your test or question will be,…and also what your response will be if true. That's the case in the If function,…as well as the Case function.…

With Boolean, in the case of "IsEmpty" or "IsValid" you're simply a going to get…a true or a false answer to your "question."…So for example, IsEmpty tests whether or not the data passed to it is empty.…If you pass it a blank string, it returns of a 1, or a true statement, otherwise…it returns a 0 or a false statement.…Most often this function is used to determine whether not specific fields…have been left empty.…So IsEmpty is commonly used as a test within a conditional function.…