Print number Patterns

Question

How can we show output as given below in appian using expression rule? 
 output: 
 1 
 22 
 333 
 4444 
 55555

Ujjwal Rathore · Answer

The process initiator is the person who has started the process model and the process designer is the person who has last published the process model. 
 https://docs.appian.com/suite/help/20.4/process-model-object.html#actor-properties

shukurs0001 · Answer

a!forEach(
 items: enumerate(5),
 expression:joinarray(repeat(fv!index,fv!index)," ")
)

shukurs0001 · Answer

a!localVariables(
 local!stringList: {"A","B","C","D","E"},
 a!forEach(
 items: enumerate(length(local!stringList)),
 expression:joinarray(repeat(fv!index,local!stringList[fv!index])," ")
 )
)

Print number Patterns

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