What are the best practices for using localStorage in Vue 3?

What are the best practices for using localStorage in Vue 3?

When using localStorage in Vue 3, consider the following best practices: 1. Use a wrapper for localStorage to handle JSON serialization and deserialization. 2. Implement a reactive state management solution to keep your UI in sync with localStorage. 3. Set expiration times for stored data to avoid stale information. 4. Handle errors gracefully, especially when localStorage is full or unavailable.

Can you give an example of a wrapper for localStorage?

Sure! Here's a simple example of a localStorage wrapper:

class LocalStorageService {
  static setItem(key, value) {
    localStorage.setItem(key, JSON.stringify(value));
  }

  static getItem(key) {
    const value = localStorage.getItem(key);
    return value ? JSON.parse(value) : null;
  }

  static removeItem(key) {
    localStorage.removeItem(key);
  }
}

This class provides methods to set, get, and remove items from localStorage while handling JSON.

How can I ensure my data stays in sync with localStorage?

To keep your data in sync with localStorage, you can use Vue's reactivity system. For example, you can create a reactive property in your component and update it whenever localStorage changes. You can also use watchers to detect changes and update localStorage accordingly.

What should I do if localStorage is full?

If localStorage is full, you can handle it by catching the error when trying to set an item. You might want to implement a strategy to remove old or less important data before adding new items, or notify the user that storage is full.