Understanding Local and Session Storage in JavaScript

Manage Your Web App’s Data Like a Pro

Photo by Jainath Ponnala on Unsplash

Local and session storage in JavaScript provide convenient ways to store data locally on the user’s browser.

In this article, we’ll explore how you can leverage local and session storage to enhance your web applications, along with practical code examples.

Exploring Local and Session Storage

Local storage and session storage are two mechanisms provided by browsers to store key-value pairs locally on the user’s device. They offer different lifespans and scopes for the stored data.

1. Local Storage

Local storage persists even after the browser is closed and reopened, making it suitable for long-term storage.

// Storing data in local storage
localStorage.setItem('username', 'John');

// Retrieving data from local storage
const username = localStorage.getItem('username');
console.log(username); // Output: John

2. Session Storage

Session storage is cleared when the browser session ends, such as when the tab is closed. It’s ideal for storing data temporarily during a user’s session.

// Storing data in session storage…