Hi Alan, unfortunately, it is a different notion. See the following example:
unset 'a value? 'a ; == false undefined? 'a ; == false value? first first rebol/words ; == false undefined? first first rebol/words ; == true set 'a 1 ; == 1 set first first rebol/words 1 ** Script Error: end! is not defined in this context ** Near: set first first rebol/words 1 The difference is, that a defined word can either have a value or not, while an undefined word cannot have a value. Cheers L ----- Original Message ----- From: "alan parman" Sent: Tuesday, March 05, 2002 3:28 PM Subject: [REBOL] Re: [subject: error and trial] I, too am unclear on the uses of 'undefined? Is it any different from using "not value? 'word" ? Much easier to use an existing native value, right? ;) -- To unsubscribe from this list, please send an email to [EMAIL PROTECTED] with "unsubscribe" in the subject, without the quotes.
