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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 · Loop rules

undoLoopfunction

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

Import it

import { undoLoop } from "@johnmorrisdotca/kazu/loop";

Also exported from: @johnmorrisdotca/kazu

Definition

function undoLoop(game: LoopGame): LoopGame

Parameters

NameTypeDescription
gameLoopGame

The current immutable game state.

Returns

LoopGame

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

Examples

import type { LoopBoard } from "@johnmorrisdotca/kazu/loop";
import { newLoop, undoLoop } from "@johnmorrisdotca/kazu/loop";

const loopBoard: LoopBoard = {"width":5,"height":5,"clues":[2,3,1,null,null,3,1,1,null,null,3,2,2,null,null,3,0,2,2,null,2,2,1,2,3]};
const loopGame = newLoop(loopBoard);
console.log(undoLoop(loopGame));
{
  board: {
    width: 5,
    height: 5,
    clues: [
      2, 3,    1,    null, null, 3,
      1, 1,    null, null, 3,    2,
      2, null, null, 3,    0,    2,
      2, null, 2,    2,    1,    2,
      3
    ]
  },
  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.