Std.List.unfold
1 declaration
fn
unfold: Int -> S -> fn(S) -> Option[(T, S)] -> Array[T]This is a callable function.
What it does
An array grown from a seed until the step answers None.
The step count is bounded because a strict language cannot recover from a
step that never stops; exhausting the bound answers with what it had.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Option holds Some(value) or None when no value is available.