SList

sealed abstract class SList

A class of singly-linked immutable lists of integers.

SList differs from List three main ways:

It only supports integers as elements, and therefore does not take a type parameter.
It supports only a handful of methods (but those that it does support exactly mirror the equivalent List methods).
It is NOT designed to support pattern matching.

class Object

trait Matchable

class Any

Value members

Returns the first element of the list.

Throws NoSuchElementException if the list is empty.

Returns the rest of the list without the first element.

Throws UnsupportedOperationException if the list is empty.

Adds an element to the front of the list.

Tests whether the list is empty.

Tests whether the list has at least one element.