What are the best practices for using localStorage in web development?

What are the best practices for using localStorage in web development?

When using localStorage, consider these best practices: 1. Store only essential data. 2. Use JSON for complex data. 3. Implement data expiration. 4. Handle storage limits gracefully.

How can I ensure data expiration in localStorage?

You can implement data expiration by storing a timestamp along with your data and checking it before accessing the data.

Is there a limit to how much data I can store in localStorage?

Yes, most browsers limit localStorage to about 5-10MB per origin. It's best to check the specific limits for the browsers you are targeting.

Can I store objects directly in localStorage?

No, localStorage only supports string values. You should use JSON.stringify() to convert objects to strings before storing them.

What happens if I exceed the storage limit?

If you exceed the storage limit, the browser will throw a QUOTA_EXCEEDED_ERR, and you won't be able to store more data until you free up space.