By the way, off topic a bit: Wouldn't "I" && "am" be the same as "I " & "am"? ((notice the space after "I" in the second example")).
On 5/9/09 12:57 PM, "J. Landman Gay" <jac...@hyperactivesw.com> wrote: > Stephen Cox wrote: >> Wait. I don't get this. You saying that checking if an unused variable is >> empty returns false? Does revolution put some data in a variable when >> created? > > Sort of, but only in specific cases, which is mostly a side-effect of > how friendly Rev's interpreter is and how it deals with strings. (The > discussion about quoted field names shows how flexible Rev is with > strings.) If a variable is not specifically created with a value, the > value of the variable is the variable's name itself. > > This creates a variable without assigning it any value: > > on mouseup > put (var = empty) && "Var = " & var > end mouseup > > You get: false var = var > > But this assigns a value and gives what you'd expect: > > on mouseUp > put empty into var > put (var = empty) && "Var = " & var > end mouseUp > > Gives: true var = _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
