如何在没有未捕获的类型错误的情况下访问此嵌套数组？

如何解决如何在没有未捕获的类型错误的情况下访问此嵌套数组？

因此，我只想访问下图一所示的数组属性：

但是当我尝试在第135行使用gameArray [0]执行此操作时，我得到的定义如下：

有什么方法可以通过仅带有索引的gameArray来访问此数组中的信息吗？

//import Cursor from '/src/cursor.js';

const BASE_URL = "http://localhost:3000";
const MAZES = `${BASE_URL}/mazes`;
const PROFILE = `${BASE_URL}/users/`;
const SESSION = `${BASE_URL}/session`;
const LOGOUT = `${BASE_URL}/logout`;
const canvas = document.getElementById("mazeScreen");
const ctx = canvas.getContext("2d");

const main = document.querySelector("main");
let gameArray = [];
//document.addEventListener("DOMContentLoaded",() => loadMaze(4));
//document.addEventListener("DOMContentLoaded",() => draw());
//console.log(loggedIn());

document.getElementById("logInButton").addEventListener("click",(event) => {
  console.log("click");
  let username = document.getElementById("logInField").value;
  console.log(username);
  document.getElementById("userInfo").innerHTML = makeUser(username);
  //renderUser(userInfo);

});

document.getElementById("getUser").addEventListener("click",getUser);

function getUser() {
  fetch(PROFILE)
  .then((res) => res.json())
    .then((json) => {
      json.forEach((user) => console.log(user));
    })
}

const makeUser = (username) => {
  fetch(`${PROFILE}`,{
    method: 'POST',headers: {
      'Content-Type': 'application/json'
    },body: JSON.stringify({
      username: username
    })
  }).then(res => {
    return res.json()
  })
  .then(data => console.log(data))
  .catch(error => console.log('ERROR'))
};

const loadMazes = () => {
  fetch(MAZES)
    .then((res) => res.json())
    .then((json) => {
      setMazeData(json,gameArray);
    });

    return gameArray;
};

const renderUser = (userHash) => {
  console.log("we are here");
  let div = document.getElementById("userInfo");
  let p = document.createElement("p");

  div.setAttribute("class","card");
  console.log(userHash)
  //p.innerHTML = `Welcome ${userHash.username}`;

  div.appendChild(p);
  div.appendChild(button);
  div.appendChild(ul);
  
  document.getElementById("log_in_button").innerHTML = "Log out"
  setLogOut();
};

function loggedIn() {
  fetch(SESSION)
  .then((res) => res.json())
  .then((json) => {
    console.log(json)
  });
}

const setLogOut = () => {
  document.getElementById("scores").setAttribute("hidden",true);
  document.getElementById("log_in_button").addEventListener("click",(event) => {
    console.log("click");
    fetch(`${LOGOUT}`);
    document.getElementById("scores").setAttribute("hidden",true);
  });
}

// const renderScores = (scoreHash) => {

// }


let CANVAS_WIDTH = 1000;
let CANVAS_HEIGHT = 800;

let MAZE_WIDTH = 800;
let MAZE_HEIGHT = 600;

let PATH_SIZE = 10;
let COIN_RADIUS = 8;
let STARTING_AREA_WIDTH = 50;
let STARTING_AREA_HEIGHT = 50;
let FINISH_AREA_SIZE = 50;

let MAZE_X_CONSTANT = (CANVAS_WIDTH - MAZE_WIDTH) / 2;
let MAZE_Y_CONSTANT = (CANVAS_HEIGHT - MAZE_HEIGHT) / 2;

let pathString = "60 60 70 70 80 80 90 90 300 40 50 50 60 60 70 70 80 80 90 90 100 100";
let coinString = "200 200 220 220 230 230 300 300 400 400 500 500";

let pathString2 = "100 100 110 90 120 80 130 70 300 40 50 50 60 60 70 70 80 80 90 90 100 100";

function setMazeData(json,gameArray) {
  for (let i = 0; i < json.length; i ++) {
    var new_array = [parseInt(json[i].width),parseInt(json[i].height),MAZE_X_CONSTANT,MAZE_Y_CONSTANT,json[i].paths,json[i].coins,COIN_RADIUS,FINISH_AREA_SIZE,PATH_SIZE,parseInt(JSON.stringify(json[i].id)),STARTING_AREA_WIDTH,STARTING_AREA_HEIGHT,json.length]
    gameArray.push(new_array);
  }
  return gameArray;
}

gameArray = loadMazes();

function createGame(gameId,gameArray) {
  console.log(gameId)
  console.log(gameArray[0]);
  let new_game = new Game(gameArray[gameId][0],gameArray[gameId][1],gameArray[gameId][2],gameArray[gameId][3],gameArray[gameId][4],gameArray[gameId][5],gameArray[gameId][6],gameArray[gameId][7],gameArray[gameId][8],gameArray[gameId][9],gameArray[gameId][10],gameArray[gameId][11],gameArray[gameId][12],gameArray)
  
  return new_game
}

let game = createGame(0,gameArray);
let lastTime = 0;

function gameLoop(timestamp) {
  let deltaTime = timestamp - lastTime;
  lastTime = timestamp;

  ctx.clearRect(0,CANVAS_WIDTH,CANVAS_HEIGHT);
  drawMazeBorder(ctx);
  drawStartingArea(ctx);
  game.update(deltaTime);
  game.draw(ctx);
  requestAnimationFrame(gameLoop);
}

requestAnimationFrame(gameLoop);

function drawMazeBorder(ctx) {
  ctx.strokeStyle="white"
  ctx.lineWidth = 2;
  ctx.strokeRect(MAZE_X_CONSTANT - 2,MAZE_Y_CONSTANT - 2,MAZE_WIDTH + 2,MAZE_HEIGHT + 2);
}

function drawStartingArea(ctx) {
  ctx.fillStyle = "gray"
  ctx.fillRect(MAZE_X_CONSTANT,STARTING_AREA_HEIGHT);
}

编辑后将所有代码添加到index.js中。您可以看到loadMazes调用setMazeData。希望这行得通。谢谢。