Kirk, Thanks - very helpful. What I was hoping to do was to build a couple of text arrays in a method; return them in an object; and then use them directly in calls to HTTP methods, something like this:
C_OBJECT($headers) $headers:=BuildHeaders // returns object containing matched arrays $status:=HTTP Get($url; $response; $headers.names; $headers.values) Is that possible, or must I extract the names and values arrays from the returned object before use? I’m using v17R4. Jeremy > On 10 Jun 2019, at 19:47, Kirk Brooks via 4D_Tech <[email protected]> > wrote: > > Jeremy, > Depends on which version you are using. If you are in v17 then 'arrays in > objects' are essentially gone. They are collections now and you can use dot > notation with collections. > Otherwise, yes 'arrays' are still arrays within the object. > > It's possible to mix the nomenclatures in v17. You _can_ define an object > as use OB SET ARRAY but there is no advantage to doing so. It's much better > to use collections. > > C_OBJECT($o) > $o:=New object > $o.array:=New collection > > $o.array.push(1) // $o: {array: [1]} > > > $x:=$o.array[0] // $x = 1 > > If you have some array of longints you want to append you can call OB SET > ARRAY($o;”array”;$arrayOfLongs) without an error and it will be a > collection. > You could also call ARRAY TO COLLECTION($o.array;$arrayOfLongs) > > > On Mon, Jun 10, 2019 at 11:37 AM Jeremy Roussak via 4D_Tech < > [email protected]> wrote: > >> Are arrays within objects rather second-class properties? I know that I >> can put an array into an object using OB SET ARRAY, and I can retrieve it >> (all of it) using OB GET ARRAY, but is that all? >> >> Can I use dot notation to refer to the arrays themselves, or to individual >> elements of the array? >> >> C_OBJECT($o) >> >> $o:=New object >> OB SET ARRAY($o;”array”;$arrayOfLongs) >> >> $o.array{1} - error >> $o.array - error >> $o[“array”] - error >> > > -- > Kirk Brooks > San Francisco, CA > ======================= > > What can be said, can be said clearly, > and what you can’t say, you should shut up about > > *Wittgenstein and the Computer * > ********************************************************************** > 4D Internet Users Group (4D iNUG) > Archive: http://lists.4d.com/archives.html > Options: https://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:[email protected] > ********************************************************************** ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
