封装localstorage为对象 js

export const LocalStorageManager = {
  recordKey: "Record",
  // 获取本地存储中的值
  get(key) {
    try {
      const value = localStorage.getItem(key);
      if (value === null || value === undefined || value === "") {
        return null;
      }
      return JSON.parse(localStorage.getItem(key));
    } catch (err) {
      return null;
    }
  },

  // 设置本地存储中的值
  set(key, value) {
    return localStorage.setItem(key, JSON.stringify(value));
  },

  // 删除本地存储中的值
  remove(key) {
    return localStorage.removeItem(key);
  },

  // 清空本地存储
  clear() {
    return localStorage.clear();
  },

  // 获取 localsotrage 中以某个字符开头的所有数据
  // const data = LocalStorageManager.getDataStartingWith(LocalStorageManager.recordKey);
  getDataStartingWith(prefix) {
    let data = {};
    for (let key in localStorage) {
      if (key.startsWith(prefix)) {
        data[key] = JSON.parse(localStorage.getItem(key));
      }
    }
    return data;
  }
};
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