> On Mar 1, 2016, at 3:58 PM, Peter TB Brett <peter.br...@livecode.com> wrote: > > On 01/03/2016 20:44, Stephen MacLean wrote: >> Hi All, >> >> I’m looking for some help on complex statements in LCB. >> >> I’m trying to take a script statement like this: >> >> if (char x of tCardNum)*2 > 9 then > > Hi Stephen, > > Don't forget that LCB is strongly typed. That means that a string isn't a > number, so you can't multiply it! > > The expression "char x of tCardNum" evaluates to a string that's one > character long. If "tCardNum" has fewer than "x" characters, then it throws > an error. > > If the character is expected to be the string representation of a number, > then you probably want to explicitly convert it to a number: > > variable tNum as Number > put (char x of tCardNum) parsed as number into tNum > if 9 < 2 * tNum then > ... > end if > > Peter
Hi Peter, Thanks:) Being strongly typed has it’s plusses and minuses. I was hoping to avoid “parsed as number” by using the “any” type. It looks like that when you have a variable in LCB with a type of “any” and perform an action on it, it becomes that type. So perform “put the number of chars in tCardNum into tLen” and tCardNum becomes a string type. Do "put 0 into tCheckSum” and tCheckSum becomes a number. I'll give it a go. While I could just wrap the whole thing up and execute it as a script, I’m really trying to do as much as possible in LCB to learn. Thanks so much! Best, Steve MacLean _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
