How to get type of string array

RE: How to get type of string array

Mike Schmitt — Thu, 04 Aug 2022 19:53:28 GMT

Similarly, 'type!Text?list'

RE: How to get type of string array

Mike Schmitt — Thu, 04 Aug 2022 19:51:56 GMT

2 followup notes on this:

1) the type name is case sensitive (type!intger won't work, whereas type!Integer will)

2) you can use the '?list' notation, but it requires to enclose the entire "type!.." call in single quotes - like this:

RE: How to get type of string array

Chris — Thu, 04 Aug 2022 15:17:08 GMT

I misunderstood that you wanted the type value (103) instead of an empty string array. I like Stefan's answer then 🙂

Also for reference, if you want a quick way in your environment to see the type numbers in Appian (we use this in a COE/internal report), plug this into an empty interface. Appian data types are ~1-300, CDTs begin at 500.

Note, never apply the try() (or any other undocumented function) in production, although it would be nice to have, it is not supported currently and may be removed at any time.

a!richTextDisplayField(
  label: "Data Types",
  value: {
    a!forEach(
      items: 1+enumerate(1500),
      expression: {
        a!richTextItem(
          text: concat(
            fv!item,
            " - ",
            /* do not use try() in production! */
            try(typename(fv!item),"")
          )
        ),
        char(13)
      }
    )
  }
)

RE: How to get type of string array

Stefan Helzle — Thu, 04 Aug 2022 15:12:18 GMT

You are welcome :-)

RE: How to get type of string array

justinb5763 — Thu, 04 Aug 2022 15:11:08 GMT

perfect. thank you so much for your help!

RE: How to get type of string array

Stefan Helzle — Thu, 04 Aug 2022 15:08:53 GMT

yes

Singular type: type!Text

Plural type: type!Text?list or a!listType(type!Text)

BTW, toInteger() etc. work with lists directly. For turning a list of Integers into a list of strings, use touniformstring().

RE: How to get type of string array

justinb5763 — Thu, 04 Aug 2022 15:05:41 GMT

right, I guess that was really my question--what do I put after type! to get 103 back? or is that what you were saying in your other answer?

RE: How to get type of string array

Stefan Helzle — Thu, 04 Aug 2022 15:04:51 GMT

But keep in mind, that you can reference all Appian types using "type!". I do not use any type numbers directly.

type!Variant

type!Text

type!Map

etc...

RE: How to get type of string array

justinb5763 — Thu, 04 Aug 2022 15:02:58 GMT

ah, this is awesome. thank you!

RE: How to get type of string array

Stefan Helzle — Thu, 04 Aug 2022 14:59:54 GMT

docs.appian.com/.../constant-values.html

RE: How to get type of string array

justinb5763 — Thu, 04 Aug 2022 14:59:20 GMT

where is the 103 from and what's its significance?

RE: How to get type of string array

Stefan Helzle — Thu, 04 Aug 2022 14:55:46 GMT

a!listType(type!Text)

RE: How to get type of string array

Chris — Thu, 04 Aug 2022 14:53:18 GMT

I wouldn't have any issues using that code in production, but if you want another way to do it, try:

fn!cast(103,null)