js写入缓存文件

// 写入数据
localStorage.setItem('key', 'value');

// 读取数据
const value = localStorage.getItem('key');
console.log(value); // 输出: value

// 删除数据
localStorage.removeItem('key');

let db;
const request = indexedDB.open('myDatabase', 1);

request.onupgradeneeded = function(event) {
  db = event.target.result;
  const objectStore = db.createObjectStore('cache', { keyPath: 'id' });
};

request.onsuccess = function(event) {
  db = event.target.result;
  const transaction = db.transaction(['cache'], 'readwrite');
  const objectStore = transaction.objectStore('cache');
  const addRequest = objectStore.add({ id: 'key', value: 'value' });

  addRequest.onsuccess = function() {
    console.log('数据已添加到IndexedDB');
  };
};

const fs = require('fs');

// 写入文件
fs.writeFile('cache.json', JSON.stringify({ key: 'value' }), (err) => {
  if (err) throw err;
  console.log('数据已写入文件');
});

// 读取文件
fs.readFile('cache.json', 'utf8', (err, data) => {
  if (err) throw err;
  console.log(JSON.parse(data)); // 输出: { key: 'value' }
});