Method first

src/utils.ts:779–782

Returns the first item in the list, does not remove

()

  /** Returns the first item in the list, does not remove */
  first(): T | null {
    // If the list is empty, value will be the head's null
    return this.head.next.value;
  }

  /** Returns the last item in the list, does not remove */
  last(): T | null {