セッションストレージが利用できない場合、どのような代替手段を使用できますか?

// 设置一个 cookie
document.cookie = "name=John Doe; expires=Thu, 18 Dec 2025 12:00:00 UTC; path=/";

// 获取一个 cookie
const cookies = document.cookie.split("; ");
for (let i = 0; i < cookies.length; i++) {
  const cookie = cookies[i].split("=");
  const name = cookie[0];
  const value = cookie[1];
  if (name === "name") {
    console.log(value); // 输出 "John Doe"
    break;
  }
}

// 设置 local storage
localStorage.setItem("name", "John Doe");

// 获取 local storage
const name = localStorage.getItem("name");
console.log(name); // 输出 "John Doe"

// 打开或创建 IndexedDB 数据库
const request = window.indexedDB.open("myDatabase", 1);

request.onerror = function(event) {
  console.log("打开/创建数据库失败");
};

request.onsuccess = function(event) {
  const db = event.target.result;

  // 创建一个事务
  const transaction = db.transaction(["myObjectStore"], "readwrite");

  // 获取一个对象存储空间
  const objectStore = transaction.objectStore("myObjectStore");

  // 存储数据
  objectStore.add({ name: "John Doe" });

  // 检索数据
  const request = objectStore.get(1);
  request.onsuccess = function(event) {
    console.log(event.target.result.name); // 输出 "John Doe"
  };
};

request.onupgradeneeded = function(event) {
  const db = event.target.result;

  // 创建一个对象存储空间
  const objectStore = db.createObjectStore("myObjectStore", { keyPath: "id", autoIncrement: true });

  // 创建索引
  objectStore.createIndex("name", "name", { unique: false });
};