Return a reference to an element
The algorithmic complexity of this function is amortized *O(1)* because it might need to cache elements between the currently available last element and the element about to be accessed with the specified index.
the _index of the element to return
See Implementation
Return a reference to an element
The algorithmic complexity of this function is amortized *O(1)* because it might need to cache elements between the currently available last element and the element about to be accessed with the specified index.