Cookies And LocalStorage In Javascript In Tamil | HTML CSS Javascript Tutorial In Tamil |

Welcome to our comprehensive tutorial on Cookies and LocalStorage in JavaScript presented in Tamil! This video is part of our ongoing series on web development where we dive deep into the fundamental concepts of HTML, CSS, and JavaScript. In this tutorial, we’ll guide you through everything you need to know about managing data on the client side using Cookies and LocalStorage. Whether you're a beginner eager to expand your web development skills or an experienced programmer looking to refresh your knowledge, this tutorial will provide you with valuable insights.

Introduction to Web Storage
Before diving into the technical aspects, it's important to understand the concept of web storage. Web storage is a way for websites to store data locally within the user's browser. This data can be accessed and used later, even after the browser is closed. The two primary types of web storage in JavaScript are Cookies and LocalStorage.

Why Web Storage is Important
Web storage is crucial for creating dynamic and interactive web applications. By storing data locally on the client side, developers can enhance user experience, save user preferences, and maintain state across different sessions. Here’s a breakdown of why web storage matters:

Persistence: Data stored in web storage can persist across sessions, meaning users don't have to re-enter information every time they visit a site.

Performance: Local data storage reduces the need for server requests, leading to faster loading times and a more responsive application.

User Experience: Storing user preferences, such as theme settings or language choices, enhances the overall user experience.

Offline Access: In some cases, web storage can enable offline functionality, allowing users to continue interacting with a website even when they lose internet connectivity.

Cookies in JavaScript
Cookies are small pieces of data that websites store on a user’s device. They have been around for a long time and are primarily used for storing session information, such as login credentials or user preferences. In this section, we will explore how to work with cookies using JavaScript.

Creating Cookies
To create a cookie, you need to set a key-value pair in the document’s cookie property. In this tutorial, we’ll walk you through the process of creating a cookie in JavaScript, explaining each step in detail.

Key Concepts:
Setting a Cookie: How to use JavaScript to set a cookie with a specified name, value, and expiration date.

Path and Domain: Understanding how to restrict a cookie’s availability to specific paths or domains.

Secure and HttpOnly Flags: Enhancing security by setting cookies to be accessible only over secure connections and not accessible via JavaScript.

Reading Cookies
Once a cookie is set, you’ll often need to read its value. This section covers how to retrieve the value of a specific cookie using JavaScript.

Key Concepts:

Handling Multiple Cookies: Techniques for handling scenarios where multiple cookies are set, ensuring you retrieve the correct value.

Updating and Deleting Cookies
Cookies can be updated by setting them again with the same name but a different value. We’ll explain how to update cookie values and how to delete cookies when they are no longer needed.

Key Concepts:
Updating Cookie Values: How to modify the value of an existing cookie by resetting it with a new value.

Deleting Cookies: Techniques for deleting a cookie by setting its expiration date to a past time.

LocalStorage in JavaScript
LocalStorage is a modern web storage method that allows developers to store key-value pairs in the browser. Unlike cookies, data in LocalStorage doesn’t expire and can store much larger amounts of data. In this section, we’ll explore how to use LocalStorage in JavaScript.

Storing Data in LocalStorage
LocalStorage is perfect for storing data that doesn’t need to be sent to the server with every request. This section covers how to save data in LocalStorage using JavaScript.

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