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domaingrodnolen.gov.by
summary**Summary:**

In programming, particularly in JavaScript and its frameworks like Node.js, `cookies` are a key component of web development. They serve the purpose of storing small pieces of data on the client-side (user's device) for use during subsequent requests to the same domain.

Here are some key points about cookies:

- **Purpose**: Cookies help maintain stateful sessions, remember user preferences, and store temporary information.
- **Data**: Cookies can store strings up to approximately 4KB. They contain a name-value pair along with attributes like expiration date and path.
- **Accessibility**: Cookies are accessible to both the client-side (JavaScript) and server-side (Node.js).
- **Persistence**: Cookies have an expiration date. If none is set, they become session cookies which expire when the user closes their browser.
- **Security**: To protect against cross-site scripting (XSS) attacks, it's recommended to use secure (HttpOnly) and same-site attributes.

Here's how you can create, read, and delete cookies using Node.js with Express:

```javascript
// Create a cookie
res.cookie('username', 'John Doe', { maxAge: 900000 });

// Read a cookie
const username = req.cookies.username; // John Doe

// Delete a cookie
res.clearCookie('username');
```

To summarize, cookies are an essential tool for managing user-specific data across different requests in web development.
titleHome - the administration of the Leninsky district of the city of Grodno
descriptionHome - the administration of the Leninsky district of the city of Grodno
keywordscookies
upstreams
downstreams
nslookupA 93.125.24.158
created2025-03-26
updated2025-05-14
summarized2025-05-14

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