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Kazu数

Generate checked Sudoku and logic puzzles, read native rules and hints, and draw or embed playable boards.

Kazu is the Japanese word 数 for number. About the name

Contents

Reference · Yajilin rules

undoYajilinfunction

Return the Yajilin game with its previous marks or entries restored, or unchanged when there is no undo history.

Import it

import { undoYajilin } from "@johnmorrisdotca/kazu/yajilin";

Also exported from: @johnmorrisdotca/kazu

Definition

function undoYajilin(game: YajilinGame): YajilinGame

Parameters

NameTypeDescription
gameYajilinGame

The current immutable game state.

Returns

YajilinGame

Return the Yajilin game with its previous marks or entries restored, or unchanged when there is no undo history.

Examples

import type { YajilinBoard } from "@johnmorrisdotca/kazu/yajilin";
import { newYajilin, undoYajilin } from "@johnmorrisdotca/kazu/yajilin";

const yajilinBoard: YajilinBoard = {"width":5,"height":5,"clues":[{"direction":"left","count":0},null,{"direction":"right","count":1},null,{"direction":"up","count":0},null,null,null,null,null,{"direction":"right","count":0},null,{"direction":"left","count":0},null,{"direction":"down","count":1},{"direction":"left","count":0},null,null,null,null,null,{"direction":"up","count":1},{"direction":"down","count":0},null,{"direction":"down","count":0}]};
const yajilinGame = newYajilin(yajilinBoard);
console.log(undoYajilin(yajilinGame));
{
  board: {
    width: 5,
    height: 5,
    clues: [
      [Object], null,     [Object],
      null,     [Object], null,
      null,     null,     null,
      null,     [Object], null,
      [Object], null,     [Object],
      [Object], null,     null,
      null,     null,     null,
      [Object], [Object], null,
      [Object]
    ]
  },
  shaded: [
    false, false, false, false,
    false, false, false, false,
    false, false, false, false,
    false, false, false, false,
    false, false, false, false,
    false, false, false, false,
    false
  ],
  edges: [],
  history: [],
  helped: false
}

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/kazu 2.1.0.