Web Storage
📌 Covered in this chapter:
Local Storage vs Session Storage · Storage Quotas & Limits · setItem(), getItem(), removeItem(), clear() · JSON Serialization · Storage Events · XSS Security Rules
Welcome to Phase 11 (Chapter 28): Web Storage! Store key-value data persistently in the browser using
localStorage and sessionStorage.
1localStorage & JSON Serialization Syntax
JavaScript — localStorage & JSON
▶ Run in HTML Editor
<script>
const user = { name: "Balaji", theme: "dark" };
localStorage.setItem('user_profile', JSON.stringify(user));
const saved = JSON.parse(localStorage.getItem('user_profile'));
console.log('Stored Name:', saved.name);
</script>