Yes but... I'd contend that a string of tests is usually less efficient than (perhaps calculating) some numeric value that is amenable to a case statement. ( I should have checked first; J does have a case statement, does it not?)
> On Dec 11, 2019, at 10:32 AM, Henry Rich <henryhr...@gmail.com> wrote: > > Yes. > > Henry Rich > >> On 12/11/2019 5:46 AM, 'Mike Day' via Programming wrote: >> So is it still ok in J9 - and will it be ok - to continue using the >> following paradigm? >> >> if. T do. B >> elseif. T1 do. B1 >> elseif. T2 do. B2 >> end. >> >> Thanks, >> >> Mike >> >> >>> On 11/12/2019 10:23, Henry Rich wrote: >>> else. after elseif. is new in 9.01, and you found a bug in it. >>> >>> JfC is for J6.02. >>> >>> Henry Rich >>> >>> On 12/10/2019 8:23 PM, Ben Gorte wrote: >>>> Hi, >>>> >>>> Despite repeated warnings in JforC I stepped into the trap of using elseif. >>>> and else. in the same if.-statement. It took some effort to find that >>>> error, because the behaviour is kind of weird: >>>> >>>> iftest =: 3 : 0 >>>> if. y=1 do. >>>> echo 'one' >>>> elseif. y=2 do. >>>> echo 'two' >>>> elseif. y=3 do. >>>> echo 'three' >>>> else. NB. should be elseif. do. >>>> echo 'other' >>>> end. >>>> ) >>>> >>>> iftest 1 >>>> one >>>> other >>>> iftest 2 >>>> two >>>> other >>>> iftest 3 >>>> three >>>> iftest 4 >>>> other >>>> >>>> Wouldn't it be possible to have that working like expected? Or elseif do >>>> flag an error? >>>> >>>> Greetings, >>>> Ben >>>> ---------------------------------------------------------------------- >>>> 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 > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
