The index is zero-based, so 0 means the first element, 1 the second element and so on. Negative indices can be used to designate elements starting at the tail of the list.
Arguments#
The key of the list.
The index of the element to return, zero-based.
Response#
TValue | nullrequired
The value of the element at index index in the list. If the index is out of range, null is returned.