Hello.Could you please remove me from this distribution list for now?Thank you.Sallie
-----------------------------------------From: "Raul Miller" To: programm...@jsoftware.com Cc: Sent: Saturday September 10 2022 3:55:42PM Subject: Re: [Jprogramming] detect number but survive also string input I would use (0&". -: 1&".) or some variation which deals with the cases you're interested in for this purpose. Thanks, -- Raul On Sat, Sep 10, 2022 at 2:49 PM Pawel Jakubas wrote: > > Dear J users, > > What is the way to detect number that could be represented as integer, > float, could be negative, could assume scientific notation or rational. Is > there something like isNumber or isString ? > I would like to have something like this: > > if. (detect_number i) do. > process number > else. > process string > > and detect_number to survive inputs > i=: 2 > i=: _2 > i=: 2r3 > i=: 2.3333 > i=: 4.29497e9 > i=: 'Two' > > Thanks and cheers, > Pawel > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm /> ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm /> ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm