Store the id of the board in the Game class

src/js/Game.js

@@ -15,10 +15,21 @@ export class Game
     #state;
 
     /**
-     * Initializes a new instance of the {@link Game `Game`} class.
+     * The id of the element to add the board to.
+     *
+     * @type {string}
      */
-    constructor()
+    id;
+
+    /**
+     * Initializes a new instance of the {@link Game `Game`} class.
+     *
+     * @param {string} id
+     * The id of the element to add the board to.
+     */
+    constructor(id)
     {
+        this.id = id;
         this.#state = new State();
     }
 
@@ -40,13 +51,10 @@ export class Game
 
     /**
      * Initializes the game.
-     *
-     * @param {string} id
-     * The id of the element to add the board to.
      */
-    initialize(id)
+    initialize()
     {
-        let board = document.getElementById(id);
+        let board = document.getElementById(this.id);
         board.innerHTML = "";
 
         for (let i = 0; i < 6; i++)
@@ -78,7 +86,7 @@ export class Game
                 {
                     this.board[i][j] = this.state.currentPlayer;
                     this.state.turnCount++;
-                    this.initialize(id);
+                    this.initialize();
                 };
 
                 board.appendChild(field);

src/js/main.js

@@ -12,8 +12,8 @@ let game;
  */
 function initialize()
 {
-    game = new Game();
-    game.initialize("board");
+    game = new Game("board");
+    game.initialize();
 }
 
 initialize();