@persistent

import { component, persistent } from './src/core/decorators';

@component
class Item extends UIElement {
  @persistent
  options = {
    some: true
  };
}

const item = new Item(jodit);
console.log(item.options); // {some: true}

item.options = {
  some: false
};

const item2 = new Item(jodit); // or reload page
console.log(item.options); // {some: false}