The number of items in the array.

Returns true if the array contains no items.

Returns the item at index. Negative numbers count from the end.

Append an item to the end of the array.

Insert an item at index. Negative numbers count from the end.

Extends the array by appending each item in other to the end.

Removes the last item and returns it.

Remove the item at index. Negative numbers count from the end.

Removes all items in the array.

Removes items until the array’s length matches len. If len is greater than the array’s length, This has no effect. Negative numbers count from the end.

Reverses the order of items in the array.