From 4a744b0425333284979ef76206c457ff7dcf5907 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Mon, 1 Jun 2020 07:25:53 -0700
Subject: [PATCH] tictactoe: Use empty strings instead of null objects for
 empty squares

So that the data in the board array is always of a consistent type.
---
 tictactoe.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tictactoe.js b/tictactoe.js
index 1f559bd..f9b357b 100644
--- a/tictactoe.js
+++ b/tictactoe.js
@@ -7,7 +7,7 @@ class TicTacToe extends Game {
   constructor(id) {
     super(id);
     this.moves = [];
-    this.board = Array(9).fill(null);
+    this.board = Array(9).fill("");
   }
 
   /* Returns Boolean indicating whether move was legal and added. */
-- 
2.43.0