edew

Reverse a Linked List

Suppose we have a linked list where each node is a ListNode:

class ListNode {
  constructor(value) {
    this.value = value;
    this.next = null;
 }

edew

abstract class Option<T> {
  abstract map<U>(f: (value: T) => U): Option<U>;
  abstract defaultValue(defaultValue: T): T;
}

class Some<T> extends Option<T> {
  private value: T;

  constructor(value: T) {
    super();

edew

import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (on)
import Json.Decode as Decode
import Mouse exposing (Position)



main =
  Html.program