Inserts a new element at the specified position.
- Xcode 10.2+
- Swift Standard Library
The new element to insert into the array.
The position at which to insert the new element.
indexmust be a valid index of the array or equal to its
The new element is inserted before the element currently at the specified index. If you pass the array’s
end property as the
index parameter, the new element is appended to the array.
Complexity: O(n), where n is the length of the array. If
i == end, this method is equivalent to