Question 1

When should I use localStorage vs sessionStorage?

Accepted Answer

Use localStorage for data that must persist across browser sessions, like user settings. SessionStorage is better for temporary data, such as form inputs, as it clears when the tab closes.

Question 2

How to store objects or arrays in localStorage?

Accepted Answer

Convert data to a string with JSON.stringify() before saving, and parse it back with JSON.parse() when retrieving, since localStorage only stores strings.

Question 3

What are the security risks of using cookies for authentication?

Accepted Answer

Cookies can be vulnerable to XSS and CSRF attacks if not properly secured with flags like HttpOnly and Secure, and they're sent with every HTTP request, increasing exposure.

Question 4

How can I share data between different browser tabs securely?

Accepted Answer

Combine localStorage with the storage event for same-origin tabs, or use postMessage for cross-origin communication, but always validate the origin to prevent attacks.

Question 5

What's the best library for handling web storage in React?

Accepted Answer

Options include react-native-storage for cross-platform use or reactivestack/cookies for cookie management; choose based on whether you need localStorage or cookie-specific features.

Question 6

Is web storage safe for storing user tokens or passwords?

Accepted Answer

No, avoid storing sensitive data directly because it's accessible via JavaScript and prone to theft. Consider encryption libraries like secure-ls or server-side storage for better security.

awesome-web-storage

What is awesome-web-storage?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions