expression is
not
an
element
of
list
The is not an element of
operator evaluates to true
if none of the elements of the given list are equal to the given expression. If any of the elements of the given list are equal to the given expression, the is not an element of
operator evaluates to false
.
Equality is determined as specified for the =
operator. For a stricter definition of equality (as specified for the ===
operator), see op:is not precisely an element of
.
is not an element in
, isn't an element in
, isn't an element of
is an element of
, is precisely an element of
, is not precisely an element of