class LocalStorage { constructor() { } static setItem(key, value) { if (typeof window !== 'undefined') { localStorage.setItem(key, JSON.stringify(value)) } } static getItem(key) { if (typeof window !== 'undefined') { return localStorage.getItem(key) } return null } static removeItem(key) { if (typeof window !== 'undefined') { localStorage.removeItem(key) } } } export default LocalStorage