If the number lines of keys of tArray[“status”] > 0 -- It's an array
Ralph DiMola IT Director Evergreen Information Services rdim...@evergreeninfo.net -----Original Message----- From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf Of HENRY LOWE via use-livecode Sent: Monday, March 08, 2021 7:26 PM To: Nabble-Livecode-List Cc: HENRY LOWE Subject: Re: Multidimensional array issue Thanks Mark. There are two possible states: tArray[“status”] holds a value and tArray[“status”][“text”] does not or tArray[“status”][“text”] holds a value and tArray[“status”] does not My code is trying to do the following: If tArray[“status”] does not hold a value then check if tArray[“status”][“text”] holds a value The crux is how one reliably determines that an array member (e.g. tArray[“status”]) holds a value? I would have assumed that if the array member does not hold a value then - if tArray[member] is empty would always return true. However that does not appear to be the case if the array is multidimensional. It appears that both tArray[“status”] is an array and tArray[“status”][“text”] is an array are true. Am I missing something about using this syntax? Thanks, Henry > On Mar 8, 2021, at 3:56 PM, Mark Wieder via use-livecode > <use-livecode@lists.runrev.com> wrote: > > On 3/8/21 3:46 PM, HENRY LOWE via use-livecode wrote: > >> I have often used the form 'if tArray[“key1”] is empty' to determine whether >> an array element hold a value but this breaks if tArray[“key1”][“key2”] >> holds a value. > > Same here. Not that I've every liked that paradigm, just that it's been that > way since life crawled out of the ocean. > > However this should do the trick. > > if tArray["status"] is an array then > put tArray["status"]["text"] into tStatus else put tArray["status"] > into tStatus end if > > -- > Mark Wieder > ahsoftw...@gmail.com > > _______________________________________________ > 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 _______________________________________________ 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 _______________________________________________ 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
