teleren/devto huggingface dataset:
5 Captivating Coding Challenges to Elevate Your Front-End Skills 🚀
Tags: css, coding, programming, tutorial
Published: 2024-06-14 20:09:53


Unlock your full potential as a front-end developer with this curated collection of five engaging coding challenges from the LabEx platform. Whether you're a seasoned pro or a budding coder, these hands-on projects will push the boundaries of your CSS, React, and layout skills, leaving you with a polished portfolio and a newfound confidence in your abilities. 🧑‍💻

## 1. Create Visually Appealing Business Card (Challenge)
CSS styling is the backbone of front-end development, and this challenge invites you to showcase your expertise by helping Jackson design a stunning user business card. [Dive in and get creative!](https://labex.io/labs/300114)

## 2. Building a React Drag-and-Drop Puzzle Game (Challenge)
Embark on a captivating journey as you build a React-powered drag-and-drop puzzle game. This project is perfect for beginners looking to master React components, state management, and user interaction handling. 🧩 [Let the puzzling begin!](https://labex.io/labs/299486)

## 3. Responsive Flexible Card Layout (Challenge)
Flex your CSS Flexbox skills and create a responsive card layout that adapts seamlessly to different screen sizes and orientations. This challenge will push your front-end prowess to new heights. 📱 [Unlock the power of Flexbox!](https://labex.io/labs/300066)

## 4. Responsive Dice Layout with Flexbox (Challenge)
The Flex layout in CSS3 has become the go-to choice for front-end page layout, and this test will challenge you to implement the classic dice layout effect using the power of Flexbox. 🎲 [Roll the dice and showcase your skills!](https://labex.io/labs/300061)

## 5. Implement Dynamic Sticky Tab Bar (Challenge)
Dive into the world of dynamic user interfaces and tackle the task of creating a fixed top bar for a course website. The bar should remain in its original position until the user's scrolling height exceeds its height, at which point it should be fixed at the top of the page. 📚 [Stick the landing with this challenge!](https://labex.io/labs/299844)

Embark on these captivating coding adventures and elevate your front-end prowess to new heights. 🚀 Unleash your creativity, sharpen your skills, and showcase your expertise with these LabEx challenges. Happy coding!

---

## Want to learn more?

- 🚀 Practice thousands of programming labs on [LabEx](https://labex.io)
- 🌳 Learn the latest programming skills on [LabEx Skill Trees](https://labex.io/skilltrees/css)
- 📖 Read more programming tutorials on [LabEx Tutorials](https://labex.io/tutorials/category/css)

Join our [Discord](https://discord.gg/J6k3u69nU6) or tweet us [@WeAreLabEx](https://twitter.com/WeAreLabEx) ! 😄
THE HACK ANGEL IS THE BEST CRYPTO EXPERT TO RECOVER ALL YOUR LOST BTC
Tags: cryptocurrency, webdev, discuss
Published: 2024-06-14 20:00:58


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tw8zy06m3c4lg264yic9.jpeg)

Hello everyone, I'd like to use this medium to express my gratitude to THE HACK ANGEL for assisting me in recovering my stolen crypto worth $3200,000 through their hacking skills. It was skeptical, but it worked, and I got my money back. I'm so glad I discovered them  because I thought I'd never get my money back from those fake online investment websites. You can also reach them via. 
Email. hackangel@cyberdude.com

WHATsAP: +1 203,309,3359

Web: https://thehackangels.com
Azure Components
Published: 2024-06-14 19:55:34

The core architectural components of Azure.


In this summary, I'm just going to quickly wizz through the four core components of Azure and this includes paired regions, Availability Zones, resource groups, and the Azure Resource Manager.



The Paired Regions
Azure data centers operates all over the world, in many different locations and regions. This regions are referred to an area within a geography that contains one or more data centers. Regional pairs allow Azure to divide platform updates and planned maintenance. This ensures that only one paired region is updated at a given time. This ensure optimal application availability and minimizes recovery time in the event of a disaster occurring.



Availability Zones
Availability zones offers to protect applications and data centers from data center failures. Each Availability Zone is a unique physical location within an Azure region, and each zone is supported by one or more data centers, equipped with their own independent power, cooling, and networking infrastructure. Availability Zones helps to ensure resiliency in each enabled Azure region.



Azure Resource Groups
The Resource group is like a folder that is used to  host all resources that comprise an overall Azure solution or the resources that need to be managed as part of a group. The administrator gets to decide, based on needs, how to allocate resources in resource groups within Azure. Also resources from multiple resources group can interact with each other.



Azure Resource Manager
Resource Manager provides a consistent management layer for all Azure resources, security and auditing features, as well as tagging features that you can use to manage your resources once they’ve been deployed into Azure. Using Resource Manager, you can deploy, manage, and monitor all Azure resources for a solution as one group.
Laravel Scope to get locations nearest the user location
Tags: laravel, maps, coding
Published: 2024-06-14 19:55:03

In many web applications, particularly those that involve mapping or location-based services, it is crucial to retrieve and display locations closest to a user's current position  . 

When dealing with geographical coordinates, calculating the distance between two points on the Earth's surface can be complex due to the spherical nature of the Earth. The Haversine formula is commonly used for this purpose. It calculates the distance between two points on a sphere given their longitudes and latitudes.

 

## **Setting Up the Scope**

 

```
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Farm extends Model
{

    public function scopeClosest($query, $lat, $long)
    {
        $distanceQuery = "
            ( 6371 * acos( cos( radians(?) ) *
            cos( radians( farms.lat ) )
            * cos( radians( farms.long ) - radians(?) )
            + sin( radians(?) ) *
            sin( radians( farms.lat ) ) ) )
            AS distance
        ";

        return $query->select('farms.*')
            ->selectRaw($distanceQuery, [$lat, $long, $lat])
            ->orderBy('distance', 'asc');
    }
}
```

Breaking Down the Scope

**SQL Query:** The Haversine formula is used within a raw SQL query to calculate the distance.
**6371** is the Earth's radius in kilometers. If you need the distance in miles, replace it with 3959.
**radians(?)** converts degrees to radians for the latitude and longitude.
**selectRaw**: This method allows us to include raw expressions in our query. The placeholders (?) are replaced with the provided latitude and longitude values.
**orderBy**: Finally, we sort the results by the calculated distance in ascending order, so the closest farms appear first.

 

## Using the Scope

```
$lat = 37.7749;  // User's latitude or use $request->lat
$long = -122.4194;  // User's longitude or use $request->long

$nearestFarm = Farm::closest($lat, $long)->first();
```

This query will return a collection of Farm models ordered by their proximity to the user's location.
Virtualization 256 chars
Tags: devchallenge, cschallenge, computerscience, beginners
Published: 2024-06-14 19:45:13

*This is a submission for [DEV Computer Science Challenge v24.06.12: One Byte Explainer](https://dev.to/challenges/cs).*

## Explainer

Virtualization is a technique where a system is run in a virtual environment, as in not run by actual hardware or by its usual host system. The virtual system is designed to be indistinguishble from the real setup by anything running on it.

## Additional Context

Many success cases of virtualization are very well-known such as cloud computing, containerization and emulation; some of the lesser known as being examples of virtualization are distributed file systems and work over remote desktops.
Building an custom chat bot
Tags: ai, machinelearning, webdev, tutorial
Published: 2024-06-14 19:44:52

_heres the full code of the repo changed the dataset first
https://github.com/Abdullaah-Ali/chatbot_

1. Setting Up the Environment:
Before diving into the development process, it's essential to set up the environment properly. First, ensure you have the necessary libraries installed. You'll need Keras, Numpy, and other dependencies. You can install them using pip:

```
pip install keras numpy

```
2. Understanding the Dataset:
A well-prepared training dataset is crucial for the success of your chatbot. Ensure your dataset is formatted correctly and preprocessed for training.The quality of your dataset will significantly impact the performance of the chatbot.

3 The Keras Functional API : provides a flexible way to define complex models. Designing the architecture of your chatbot model involves understanding the structure of the neural network. You'll need to decide on the number of layers, the type of layers, and the connections between them. Each layer serves a specific purpose, such as processing input data, extracting features, and generating output responses.

4 With the architecture defined :, it's time to implement the m4 odel using the Keras Functional API. Start by coding the layers according to the design. Then, compile the model by specifying the appropriate loss function and optimizer. Split the dataset into training and validation sets to evaluate the model's performance during training.

```
output = Dense(len(label_encoder.classes_), activation='softmax')(pooled_output)

# Define the model
model = Model(inputs=input_text, outputs=output)

# Compile the model
model.compile(optimizer='adam', loss='sparse_categorical_crossentropy', metrics=['accuracy'])

# Train the model
model.fit(padded_sequences, encoded_answers, epochs=600, batch_size=200)
```


as the architecture is definned run the bot on the machine and your model would be trained

**heres the full code
https://github.com/Abdullaah-Ali/chatbot**
Greedy algorithm
Tags: devchallenge, cschallenge, computerscience, beginners
Published: 2024-06-14 19:41:26

*This is a submission for [DEV Computer Science Challenge v24.06.12: One Byte Explainer](https://dev.to/challenges/cs).*

## Explainer

A greedy algorithm is like a kid in a candy store: it grabs the best candy (local optimum) it sees without thinking ahead, hoping to end up with the most candy (global optimum). It’s used in problems like finding the shortest path or scheduling tasks.

## Additional Context

Greedy but effective


<!-- Thanks for participating! -->
945. Minimum Increment to Make Array Unique
Tags: php, leetcode, algorithms, programming
Published: 2024-06-14 19:33:41

945\. Minimum Increment to Make Array Unique

Medium

You are given an integer array `nums`. In one move, you can pick an index `i` where `0 <= i < nums.length` and increment `nums[i]` by `1`.

Return _the minimum number of moves to make every value in `nums` **unique**_.

The test cases are generated so that the answer fits in a 32-bit integer.

**Example 1:**

- **Input:** nums = [1,2,2]
- **Output:** 1
- **Explanation:** After 1 move, the array could be [1, 2, 3]. 

**Example 2:**

- **Input:** nums = [3,2,1,2,1,7]
- **Output:** 6
- **Explanation:** After 6 moves, the array could be [3, 4, 1, 2, 5, 7].

  It can be shown with 5 or less moves that it is impossible for the array to have all unique values.

**Constraints:**

- <code>1 <= nums.length <= 10<sup>5</sup></code>
- <code>0 <= nums[i] <= 10<sup>5</sup></code>


**Solution:**

```
class Solution {

    /**
     * @param Integer[] $nums
     * @return Integer
     */
    function minIncrementForUnique($nums) {
        $ans = 0;
        $minAvailable = 0;

        sort($nums);

        foreach ($nums as $num) {
            $ans += max($minAvailable - $num, 0);
            $minAvailable = max($minAvailable, $num) + 1;
        }

        return $ans;
    }
}
```



**Contact Links**

- **[LinkedIn](https://www.linkedin.com/in/arifulhaque/)**
- **[GitHub](https://github.com/mah-shamim)**
First program/CCademy/CS101
Published: 2024-06-14 19:28:55

CookBook.py is a program that I wrote (my first program ever written) that takes user input and returns recipes (ingredient lists) with any allergies the user may have factored into the returned recipes.
I wanted to create a program that I could use daily that could automatically factor allergies or foods I'm wanting to avoid using into recipes that would be possible for me to make or eat.
The program uses if/elif/else conditions to run code that combs through a list comp of recipes and their corresponding ingredients.

https://github.com/Murphea/project-1.git

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/udp6dg4x8jggq7adp4bi.png)


In honest conclusion, this program took me longer to write than I had thought it would. I found myself getting discouraged from the project and struggled to motivate myself to keep plugging at it. But I still always came back to my desire to write, learn and build something that perfect or not, I can be proud of. And this project allowed me a space to accomplish that and grow my desire to keep learning.
Why I (mostly) never write `const fn = () => {}`
Tags: javascript, codeux
Published: 2024-06-14 19:16:21

A short article here on a subjective/objective manner.

Compare this:

```javascript
const justAConstant = 1244430;
const conditionalValue = justAConstant > 13 ? 'yes' : 'no';
const updateResult = updateInDb(conditionalValue);
const updateInDb = value => fetch.post('/url', JSON.stringify(value));
```

with this:
```javascript
const justAConstant = 1244430;
const conditionalValue = justAConstant > 13 ? 'yes' : 'no';
const updateResult = updateInDb(conditionalValue);
function updateInDb(value) {
  return fetch.post('/url', JSON.stringify(value));
}
```

Let's start with the trivial matter: while `function` is hoisted and you can declare wherever you want them (I like to define functions that solve partial problems under the function that solves the main problems) the order of constant declarations matter.

In the above example will throw this error: `ReferenceError: can't access lexical declaration 'updateInDb' before initialization`.

This is, as I said, trivial, very easy to fix. However there's something more appealing to me in the second version:

Separation of `values` and `functions that operate over values`. A quick glance at the second example will immediately show me where I can find the business logic, because they look different.

> In UX design we plan for the ease of traversing the UI: things that are different must look different.

While your preference to use **named functions** vs. **named unanymous functions saved as constants** is subjective it is good to know that categorization of syntactical elements can be objectively confusing or clear.
How Internet Search Works
Tags: internet, google, howitworks, career
Published: 2024-06-14 18:52:17

When we search for any website over the internet, there are many process that occurs to get our desired result.

Here are the steps :

1. **DNS Resolution**
2. **Establishing a TCP connection**
3. **Sending HTTP Request**

**DNS Resolution** - This step invloves converting the domain name to the `IP Address`. when someone enters a URL in the browser, then a request is sent to the DNS serves which reverts with the IP Address. The IP address tells us where the server is present which hosts the particular website.

![DNS Resolution](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/a5asgfh2e3jo3t0f9bx8.png)



**Establishing a TCP Connection** - After we get the IP Address , Our browser initiates a TCP connection with the web server at that IP Address. This process involes a 3-way handshake.

1. SYN(synchronize) Packet - Our browser sends a SYN packet to the server to initiate the connection. It is the 1st packet sent from client to server. It contain serveral fields such as source port, destination port, sequence number [ It is used to ensure the data integrity. ]
2. SYN-ACK (Server to Client) - The server responds with a SYN-ACK packet, acknowledging the client’s SYN and providing its own initial sequence number.
3. ACK (Client to Server): The client sends an ACK packet back to the server, acknowledging the server’s SYN-ACK. This completes the handshake, and the connection is established.

A Established TCP connections ensures that the data is transmitted properly. But TCP can't dictate how is data is structured and interpreted , so we use HTTP on the top TCP. HTTP (Hypertext Transfer Protocol) operates on top of TCP. Since HTTP is a stateless protocol, it relies on TCP to maintain the order of data transmission. Without TCP's sequencing mechanism, the HTTP protocol wouldn't guarantee that web pages and resources are delivered and rendered correctly.

**Sending HTTP Request** - After Establishing the TCP connection our browser sends the HTTP request to server. The Request got processed on the server and send the response which is then rendered by the browser.

`Extras`

1.  HTTP is stateless, meaning each request-response cycle is independent of previous interactions. It follows a request-response model.
2.  Websocket is also a communication protocol that provide full-duplex communication over single TCP connection. It enables real-time, bidirectional communication between a client (such as a web browser) and a server.
3.  TCP is a Transport layer protocol & HTTP or websockets are Application layer protocol.
سایت دنس بت
Published: 2024-06-14 18:44:10

[سایت دنس بت](https://dancebet.pro) یکی از سایت‌های شرط بندی آنلاین فارسی زبان است که در سال 1398  فعالیت خود را آغاز کرده است. این سایت به ارائه خدمات متنوعی در زمینه شرط بندی ورزشی، کازینو آنلاین، بازی‌های زنده و پیش‌بینی مسابقات می‌پردازد.

برخی از ویژگی‌های سایت دنس بت عبارتند از:

رابط کاربری ساده و آسان: استفاده از سایت دنس بت برای کاربران مبتدی و حرفه‌ای به آسانی امکان‌پذیر است.
ارائه طیف گسترده‌ای از بازی‌ها: دنس بت طیف وسیعی از بازی‌های کازینو آنلاین، از جمله اسلات، رولت، بلک جک، پوکر و ... را به کاربران خود ارائه می‌دهد.
پشتیبانی از روش‌های مختلف پرداخت: کاربران می‌توانند از طریق روش‌های مختلفی مانند کارت‌های بانکی، پرفکت مانی، ارزهای دیجیتال و ... در این سایت حساب خود را شارژ یا وجه خود را برداشت کنند.
ارائه بونوس‌ها و جوایز: دنس بت بونوس‌ها و جوایز متعددی را به کاربران خود ارائه می‌دهد، از جمله بونوس خوش‌آمدگویی، بونوس‌های ورزشی، کازینو و ... .
پشتیبانی 24 ساعته: تیم پشتیبانی دنس بت به صورت 24 ساعته در 7 روز هفته آماده پاسخگویی به سوالات و حل مشکلات کاربران هستند.
برخی از مزایای سایت دنس بت عبارتند از:

اعتبار و مجوز: دنس بت از مجوزهای لازم برای ارائه خدمات شرط بندی آنلاین برخوردار است.
امنیت بالا: این سایت از تمهیدات امنیتی بالایی برای محافظت از اطلاعات کاربران خود استفاده می‌کند.
واریزی‌های سریع: در دنس بت واریزی‌ها به سرعت و به صورت آنی انجام می‌شوند.
پشتیبانی از زبان فارسی: تمامی بخش‌های سایت دنس بت به زبان فارسی ارائه شده‌اند و کاربران فارسی زبان به راحتی می‌توانند از خدمات این سایت استفاده کنند.
Eclipse Shortcuts for Java Developers
Tags: java, eclipse, shortcuts, springboot
Published: 2024-06-14 18:36:31

Here are the top 30 Eclipse shortcuts for Java programmers:
F3: Jumps to include file or variable declaration/definition.
Alt + Left and Alt + Right: Navigate through source files (back and forward).
Ctrl + Space: Content assist for proposing methods, member variables, and more.
Ctrl + 3: Quick access to views, perspectives, and more.
Ctrl + M: Maximizes the current view or editor (can be toggled).
Ctrl + Shift + /: Insert block comment, remove it again with Ctrl + Shift + .
Ctrl + Shift + T: Open an element with wildcard support.
Ctrl + F7: Switch to next view, iterate to the next view with Ctrl + Shift + F7.
Ctrl + Alt + H: Opens the call hierarchy.
Ctrl + O: Open the Quick Outline View.
Ctrl + F: Find in current editor.
Ctrl + 1: QuickFix.
Ctrl + H: Search.
Ctrl + L: Go to line.
Alt + Shift + W: Show a class in package explorer.
Ctrl + Shift + Up and Down: Navigate from member to member (variables and methods).
Ctrl + K and Ctrl + Shift + K: Find next/previous.
F4: See the type hierarchy of a class.
Ctrl + F4 or Ctrl + W: Close current file or all files.
Ctrl + T: Toggle between supertype and subtype.
Ctrl + E: Go to other open editors.
Ctrl + .: Move to next problem in a file, and Ctrl + , for the previous problem.
Alt + ← and Alt + →: Hop back and forth through the files you have visited.
Ctrl + Shift + G: Search the workspace for references to the selected method or variable.
Ctrl + Shift + L: View the listing for all Eclipse keyboard shortcuts.
Alt + Shift + J: Add Javadoc at any place in the Java source file.
Ctrl + Shift + P: Find a closing brace.
Alt + Shift + X, Q: Run Ant build file using keyboard shortcuts in Eclipse.
Ctrl + Shift + F: Autoformatting.
Ctrl + Shift + F: Format.
These shortcuts can significantly improve your productivity while working in Eclipse.
Youtube video link: [40+ Eclipse keyboard shortcuts for java developers](https://youtu.be/uwDmr8zpsaY?si=dcCmdFsVCW6JU4ZX)