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Difference between Cookies, Session, and Local Storage in Web Development

In web development, cookies, session, and local storage are all mechanisms used for client-side data storage, but they have different functionalities and use cases:

• Cookies: Cookies are small pieces of data stored in the user's browser. They are sent with every HTTP request, making them suitable for storing small amounts of data such as user preferences or login information. However, they have a limited storage capacity and can impact website performance.
• Session: Sessions are used to store temporary data specific to a user's session on the server. Session data is stored on the server side and a session ID is typically stored in a cookie to identify the session. Sessions are more secure than cookies and can store larger amounts of data, but they require server-side resources.
• Local Storage: Local storage is a client-side storage mechanism that allows websites to store data locally in the browser. Local storage provides more storage space compared to cookies and the data persists even after the browser is closed. However, local storage is not sent with HTTP requests like cookies, making it suitable for storing data that does not need to be transmitted to the server.

In summary, cookies are suitable for small amounts of data that need to be sent with every request, sessions are used for storing temporary data on the server side, and local storage is best for storing larger amounts of data locally in the browser.

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