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is_valid_index

container.abstract_array.is_valid_index

I 
type
:
integer,
i I
)
 => 
bool
[Redefinition of  Sequence.is_valid_index]
check if argument is a valid index in this array.

Unlike for general Sequences, this performs in O(1).

Type Parameters

Arguments

0.099dev (GIT hash a35e75388cc5c7a861f5c2a3f42d121e3aab582a)
last changed: 2026-11-03