this post was submitted on 11 Jul 2025
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Perchance - Create a Random Text Generator

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Slicing a Consumable List (lemmy.world)
submitted 4 days ago by [email protected] to c/[email protected]
3 comments fedilink hide all child comments
 

Is there a simple way to to make a consumableList of a subset of the larger list?

I’d like something like the following

originalList
  A
  B
  C
  D

[a = originalList.selectmany(2).consumableList]

in my dream, [a] should be a consumable list of two random elements from originalList.

Thanks!

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[–] [email protected] 2 points 4 days ago (2 children)

Yes, it's possible. The correct syntax would be [a = originalList.consumableList.selectMany(2)] . Then, we'll need to make a list of that slice by using createPerchanceTree() with the correct escape characters. The function works like this: [newList = createPerchanceTree("slicedList\n\ta\n\tb").slicedList] [newList]

[–] [email protected] 1 points 4 days ago (1 children)

If I understand this correctly, I think I lose having a consumable list as the final output. But it got me on the right track I think. THANKYOU!

I’m working with this now, which seems to produce a functional consumable list derived from a slice of the original list.

thanks again, I hadn’t stumbled across the createPerchanceTree command in the tutorials.

OriginalList
  d
  c
  x
  y
  z

//calls consumableList here just to prevent duplication
a = \{  [OriginalList.consumableList.selectMany(2).joinItems("|")]  \}

output
  //converts the selectmany product to a consumableList
  [newList = createPerchanceTree("slicedList =" + a ).slicedList.consumableList] [newList] [newList]
[–] [email protected] 1 points 3 days ago

You won't be losing consumable list on that created list, as you can .consumableList it again. Judging by your code, you figured it out!