Fuzion Logo
fuzion-lang.dev — The Fuzion Language Portal
JavaScript seems to be disabled. Functionality is limited.

is_valid_index

Sequence.is_valid_index

(I 
type
:
integer, i I)
 => 
bool
check if argument is a valid index in this sequence.

Note that this may have a performance in O(i) unless this
Sequence is_array_backed.

Type Parameters

0.095dev (GIT hash c7967cd19e1ef640f4fa3d483cf963853644b34e)
last changed: 2026-04-21