Condition to check if array is empty or null

[Ray_Sha1 (Ray Sha)]

Hi,

I want to check if the array of string called arr1 is empty or null…

I’m using
Arr1 is nothing in the condition and it’s not working fine…

Any idea?

[Anil_G (Anil Gorthi)]

@Ray_Sha1

working

Hi @Ray_Sha1

Use IsNothing(arraystr) OrElse arraystr.Length.Equals(0)

cheers

[RajKumar_DC (RajKumar Durai)]

Hi @Ray_Sha1,

Input

Output

String.Join(“”,arrVal) = Nothing

One more condition

String.IsNullOrEmpty(String.Join(“”,arrVal)) or String.IsNullOrWhiteSpace(String.Join(“”,arrVal))

Thanks,

[Rahul_Unnikrishnan]

Hello @Ray_Sha1
You can use the below expression:

IsNothing(MyVar)

Else check the below similar post.

How to check empty array variable in uipath

Hi @brindhaS Hope this might be helpful to you. Scenario 1: Declare and array of string as empty or not Scenario 2: Add If condition activity to check the length of the array if length = 0 then it means it was empty otherwise empty. [image] [image] cheers happy learning

Thanks

[ppr (Peter Preuss)]

a very strict approach could

isNothing(yourArrVar) OrElse (Not yourArrVar.Any() ) OrElse yourArrVar.All(Function (x) String.IsNullOrEmpty(x.Trim()))

it will return true when the array is null, having no items or every entry is null or empty.String

[Swaroop_Singh_R]

Hiiii @Ray_Sha1 you can use arr1.count=0 in condition sooo that you can able to get empty array

[Ray_Sha1 (Ray Sha)]

Hi all,

All of them are valid solutions.
I just selected one that I’m using as I’ll also verify the null, empty values.

Thanks all