You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Mike Schmitt — Thu, 15 Aug 2024 12:46:54 GMT

[quote userid="251814" url="~/discussions/f/general/37278/you-are-referencing-and-using-arrays-of-a-cdt-custom-data-type-which-two-statements-are-true-choose-two/139475"] I think the statement is not correct.[/quote]

the test question states "other appian functions can be used" within the square brackets (which is true) - but this doesn't imply that you can use something nonsensical that fails to evaluate to a valid index of that array, which "proper(local!a)" would.

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Yogi Patel — Thu, 15 Aug 2024 05:20:38 GMT

Chris & Mike Schmitt Thank you for your valuable comments.

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Mike Schmitt — Wed, 14 Aug 2024 16:59:29 GMT

B is, as mentioned, incorrect.

The reason why: using index() gets the location of an array, returning a separate copy of that data (if any). Square brackets refer directly to that position in the array, and can be used to access the value and also change the value within the original array (i.e. via an a!save() statement).

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Chris — Wed, 14 Aug 2024 16:14:32 GMT

A and C are correct, B and D are incorrect.

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Yogi Patel — Wed, 14 Aug 2024 12:56:17 GMT

local!data[length(local!data)] returning 14 i.e. 4th element. This is correct behavior.

a!localVariables(
  local!data: {11,"test", "abcd", 14},
  local!data[length(local!data)]
)

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Prasanta Paul — Tue, 13 Aug 2024 06:57:43 GMT

I think "length" function is working like that. If it is working, length will be 4.

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Yogi Patel — Tue, 13 Aug 2024 06:49:26 GMT

An array contains four elements {11,"test","abcd", 14} and the 4th element is 14. Hence, it returning the correct result. I don't see any issue with the result.

RE: You are referencing and using arrays of a CDT (Custom Data Type). Which two statements are true? (Choose two.)

Prasanta Paul — Tue, 13 Aug 2024 05:50:00 GMT

Hi,

the context of option A, I think the statement is not correct.