How to print pattern below pattern.

Question

Please provide the code for printing the below pattern: 
 
 a 
 ab 
 abc

Stefan Helzle · Answer

Sorry, but why would I want to do that? Ask concrete questions and you will get support. 
 What did you try? Do you have a specific question? 
 Hint: Combine two nested foreach(), code() and enumerate().

rommels0002 · Answer

I am also eager to know your use case. But this is how you would be able to create this pattern. You can take local!alphabet in a constant from A-Z and bring upto the letter for which you want to iterate it. In your case upto letter C. 
 a!localVariables(
 local!alphabet: {
 "a",
 "b",
 "c",
 "d",
 "e",
 "f",
 "g",
 "h",
 "i",
 "j",
 "k",
 "l"
 },
 a!forEach(
 count(local!alphabet) - { enumerate(count(local!alphabet)) + 1 },
 concat(rdrop(local!alphabet, fv!item))
 )
)

ayushimittal · Answer

Thank you so much for your response. 
 I was trying to implement patterns from other coding languages using SAIL functions. It is not related to any use case.