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has

container.expanding.has

(I 
type
:
integer, i I)
 => 
bool
has element at index `i` been set already? This is true after an explicit
call to `put i v` for some value `v` or for indices in the range `0..length-1`
for all indices that existed before `expand` was called.
Precondition
pre
  safety: i64.zero <= i.as_i64 < length+n

Type Parameters

0.099dev (GIT hash a1331a3dc7ff37424401d3c7d0dba5be1302516f)
last changed: 2026-07-23