teleren/devto huggingface dataset:
Advanced Programming Techniques: Integrating Conditional Statements and Loops
Tags: computerscience, techtobe101, programming, python
Published: 2024-05-28 09:28:38

_Combining Conditional Execution and Iteration_

Conditional execution and iteration often work together to create powerful and flexible programs.

### How They Work Together

By combining these concepts, programmers can create complex decision-making structures. For example, a program can use loops to iterate over data while using conditional statements to make decisions at each iteration.

#### Optimizing Code

Using conditional execution and iteration together can optimize code, making it faster and more efficient. This combination is crucial for implementing complex algorithms like search and sort algorithms.

### Summary of Key Points

- Conditional execution and iteration often work together.
- This combination creates complex decision-making structures.
- Optimizing code involves using both concepts effectively.

---
### Case Study: Grade Calculator

In this case study, we'll understand how combining conditional execution and iteration (for loop) creates complex decision-making structures in programs. By doing so, we'll see how these combinations optimize code efficiency and enable sophisticated algorithms.

**Problem**: Create a grade calculator that processes student scores and assigns grades based on predefined criteria.

**Solution**: 
1. Use a for loop to iterate through student scores.
2. Use conditional statements to assign grades based on score ranges.

**Python Code** with Comments:
```python
# Function to calculate grades based on scores
def calculate_grade(scores):
    grades = []
    for score in scores:
        if score >= 90:
            grades.append('A')
        elif score >= 80:
            grades.append('B')
        elif score >= 70:
            grades.append('C')
        elif score >= 60:
            grades.append('D')
        else:
            grades.append('F')
    return grades

# Main program to input scores, calculate grades, and display results
def main():
    scores = [85, 72, 90, 66, 78, 95, 59]
    grades = calculate_grade(scores)
    
    print("Scores:", scores)
    print("Grades:", grades)

if __name__ == "__main__":
    main()
```
---

Through the grade calculator case study, we illustrated how conditional execution and iteration work together to process data and make decisions based on predefined criteria. This interplay is essential for building complex decision-making structures and optimizing code efficiency in various programming tasks.

In the next and final article we'll be discussing "Challenges in Conditional Execution and Iteration". Specifically error-handling.

---
Exploring Iteration in Python: How Loops Enhance Code Efficiency
Tags: computerscience, techtobe101, programming, python
Published: 2024-05-28 09:28:00

_Iteration in Programming_

**Iteration**, or looping, allows programmers to repeat a specific block of code multiple times. This concept is vital for efficiency and reducing redundant coding.


### Understanding the Iteration Process

Iteration is achieved through **loop statements** like **for loops**, **while loops**, and **do-while loops**. These loops repetitively execute a block of code until a certain condition is met.

#### Types of Loops

- **For Loop**: Ideal for iterating over a known range of values.
- **While Loop**: Continues iterating as long as a specified condition remains true.
- **Do-While Loop**: Similar to while loop but guarantees at least one iteration.

### The Impact of Iteration

Iteration makes code concise and efficient, avoiding unnecessary duplication. It's fundamental in tasks like sorting algorithms, searching algorithms, and data processing.

### Summary of Key Points

- Iteration allows for repetitive execution of code.
- Common loops include for loops, while loops, and do-while loops.
- Iteration optimizes code efficiency.

---

### Case Study: Counting Program

In this case study, we'll explore the concept of iteration. Specifically we will use a loop, such as a for loop, to help in repeating tasks efficiently and optimizing code performance. This will illustrate how these constructs we discussed enhance the functionality and efficiency of our programs.

**Problem**: Write a program to count from 1 to 10.

**Solution**: 
1. Use a for loop to iterate through the numbers.
2. Print each number in the sequence.

**Python Code** with Comments:
```python
# Function to count and print numbers from 1 to 10
def count_numbers():
    # Loop from 1 to 10 (inclusive)
    for i in range(1, 11):
        print(i)

# Main program to call the count_numbers function
def main():
    count_numbers()

if __name__ == "__main__":
    main()
```
---

By developing a counting program using iteration, we explored the iterative nature of loops and their importance in executing repetitive tasks efficiently. Iteration is a fundamental concept in programming that enables automation of processes such as data processing, repetitive calculations, and algorithmic operations.

In the next article we'll be discussing "Combining Conditional Execution and Iteration".

---
Beginners Conditional Execution in Programming: Practical Examples and Applications
Tags: computerscience, techtobe101, python, programming
Published: 2024-05-28 09:27:40

_Conditional Execution in Programming_

**Conditional execution** allows programs to make decisions based on certain conditions. By using conditional statements, we can create different pathways in a program, making it more dynamic and responsive.


### The Concept of Conditional Execution

Conditional execution lets programmers execute specific statements only when certain conditions are met. Common conditional statements include **if statements**, **switch statements**, and **ternary operators**. These evaluate expressions and decide which block of code to execute based on the evaluation.

#### Importance of Conditional Execution

Conditional execution is crucial because it makes programs adaptable. For example, a weather app can display different messages based on the current temperature, or a game can adjust its difficulty based on the player's skills. This flexibility enhances the usability and functionality of applications.

### Summary of Key Points

- Conditional execution allows programs to make decisions.
- Common conditional statements include if statements and switch statements.
- Conditional execution makes programs adaptable and responsive.


---

### Case Study: Temperature-based Activity Suggestion

In this case study, we'll dive into conditional execution to understand how conditional statements like if statements and switch statements enable programs to make decisions and adapt to varying conditions. This will build on what we discussed earlier and show how these concepts are applied in practice.

**Problem**: Create a program that suggests outdoor activities based on the temperature.

**Solution**: 
1. Use conditional statements to evaluate temperature ranges.
2. Recommend activities based on the current temperature.

**Python Code** with Comments:
```python
# Function to suggest an activity based on temperature
def suggest_activity(temperature):
    if temperature > 30:
        return "It's a hot day! Stay cool and hydrated."
    elif temperature > 20:
        return "It's a warm day! Enjoy the nice weather."
    elif temperature > 10:
        return "It's a bit chilly! Wear a jacket."
    else:
        return "It's cold! Stay warm and bundle up."

# Main program to input temperature and display suggested activity
def main():
    temperature = float(input("Enter the current temperature: "))
    print(suggest_activity(temperature))

if __name__ == "__main__":
    main()
```
---


Through the temperature-based activity suggestion program, we demonstrated the practical use of conditional execution in recommending activities based on weather conditions. By understanding how conditional statements work, programmers can create applications that respond dynamically to changing circumstances, enhancing user experience and functionality.

In the next article in our series, we will take a closer look at "Iteration in Programming".


---
What is GPU Mining?
Tags: cryptocurrency, bitcoin, asic
Published: 2024-05-28 09:24:15

**[GPU mining ](https://asicmarketplace.com/blog/gpu-vs-asic-mining/)**reduces the entry hurdles for new cryptocurrency miners. For example, it eliminates the need for expensive hardware or a greater range of coins to mine. Some GPU miners refer to this as a gateway into cryptocurrency mining.

The majority of aspiring miners have a GPU that they can use to mine, and it is fairly easy to set up a GPU-mining setup. Most big-box electrical stores and online marketplaces carry GPUs.

The configuration of GPU mining tools is also much easier to do now than it was in the early days when Bitcoin mining began. No longer do you need to be a Linux expert to configure GPU mining software. Today, GPU mining software is available for Windows computers with just one click. Older laptops are also able to use the program.
Working with multi-queries in CodeIgniter
Tags: php, webdev, sql
Published: 2024-05-28 09:06:55

Running multi-queries (a bunch of text containing arbitrary DML/DDL statements) is highly unreliable and not an exact science in CodeIgniter or even PHP for that matter. The Internet is filled with posts like [this](https://stackoverflow.com/questions/8999959/executing-multiple-queries-in-codeigniter-that-cannot-be-executed-one-by-one), [this](https://stackoverflow.com/questions/51257526/how-to-run-multi-queries-at-once-in-codeigniter), and [this](https://stackoverflow.com/questions/21869603/running-multiple-queries-in-model-in-codeigniter) but you can't depend on these solutions in most situations due to the difference between how each database driver handles it.

Most of the `query()` or `exec()` statements often don't run at all due to the batch structure (begin and commit trans) not handled properly as per that driver's liking. It may also happen that due to one error in a single SQL statement, the whole text is ignored and yet, there is no error prompt, the folks will think that multi-query executed successfully when, in fact, it didn't. Hence, it is often so tempting to do something like this in CodeIgniter but doesn't always work (especially with SQLITE databases):

```php
$sql = file_get_contents(APPPATH . '/core/init.sql');
$this->db->query($sql);
```

The only approach that is guaranteed to work reliably here is to break your multi query into individual SQL chunks by splitting the semicolon and then run each individual statement like this:

```php
$sqls = explode(';', $sql);
array_pop($sqls);
foreach($sqls as $statement){
	$statment = $statement . ";";
	//echo $statement;
	$this->db->query($statement);   
}
```

This will naturally rule out adding of any comments or whitespaces above or below the statements as you would in a script because that might cause an error. However, a simple and clean SQL script such as this one will work flawlessly:

```sql
drop table if exists settings;
drop table if exists prices;
drop table if exists quantities;

create table settings (
	id integer primary key,
	key varchar(2000),
	value varchar(2000)
);

create table update_status (
	id integer primary key,
	idx int,
	last_update datetime
);

create table prices (
	id integer primary key,
	price decimal(9,2),
	price_dt datetime
);

create table quantities (
	id integer primary key,
	idx integer,
	qty decimal(9,2),
	qty_dt datetime
);
```
IROAD X11 | Car dash camera in India | best dash camera
Published: 2024-05-28 09:06:30

2560x1440P resolution with 5. OM pixels deliver clearer and sharper images.SONY STARVIS sensor applied to IROAD X11 Rear Camera.In parking mode, the surrounding brightness is automatically diagnosed within 5 seconds and the recording .Built-in Wi-Fi. A built-in G-sensor detects.

https://camstore.in/products/iroad-x11
💥Game-Changers: How Blockchain is Revolutionizing the Sports Industry
Published: 2024-05-28 09:01:12

🌟 Blockchain Revolutionizes Sports Industry
Blockchain technology is opening up new opportunities for fans, clubs, and organizations in the sports industry. Here’s how:

⚽ FC Manchester City

Since 2021, Manchester City has integrated blockchain through partnerships with companies like Superbloke, creating the online game FC Superstars for digital teams and card exchanges based on real matches. The club also issued $CITY fan tokens on the Chiliz blockchain with Socios.com, allowing fans to participate in club decisions and access exclusive experiences. Additionally, a partnership with OKX led to a $70 million sponsorship deal and the release of limited-edition NFT jerseys. Nuria Tarre, the club’s marketing officer, highlighted blockchain's role in enhancing fan interaction and ownership experiences.

🏀 NBA

The NBA was an early adopter of blockchain. The Sacramento Kings launched a blockchain-based awards program with Blockparty and an auction platform for memorabilia with ConsenSys and Treum. In 2021, the league introduced NBA Top Shot, a platform for buying, collecting, and trading licensed digital collectibles called "Moments."

🏟️ FC Barcelona

FC Barcelona uses blockchain to engage fans through $BAR Fan Tokens in collaboration with Chiliz, providing access to exclusive content and participation in surveys. Barça Studios, the club’s digital division, leads in developing NFTs and other Web3 technologies. The club partnered with WhiteBIT to create an online course on blockchain technology, in cooperation with the Barça Innovation Hub (BIHUB).

🔗 Summary

Blockchain integration in sports transforms fan interactions, increases transparency, and creates new revenue streams. Partnerships and innovative initiatives show how blockchain facilitates interactive experiences, fan participation in decisions, and access to exclusive content and rewards. By embracing blockchain and Web3 technologies, sports organizations are catering to a tech-savvy audience and leading industry innovation.
Exploring the Intersection of JavaScript Development and Cryptocurrency Exchanges
Tags: javascript, webdev, learning, development
Published: 2024-05-28 08:56:39

Javascript, a versatile programming language, has found extensive applications in various domains, including web development, mobile app development, and more recently, in the realm of cryptocurrency exchanges. Cryptocurrency exchanges like Binance, KuCoin, WhiteBIT, and Bybit have incorporated JavaScript into their platforms to enhance user experience, facilitate trading functionalities, and develop robust trading algorithms.

JavaScript's popularity stems from its flexibility, as it allows developers to create dynamic and interactive web pages. This flexibility extends to the development of trading interfaces on cryptocurrency exchanges, where real-time data visualization, responsive design, and seamless user interaction are paramount. By leveraging JavaScript frameworks like React, Vue.js, or Angular, exchanges can deliver intuitive and feature-rich trading platforms that cater to the diverse needs of traders.

Moreover, JavaScript's asynchronous nature makes it well-suited for handling the asynchronous nature of cryptocurrency markets, where trades are executed in real-time and market conditions can change rapidly. By utilizing asynchronous programming techniques and WebSocket technology, cryptocurrency exchanges can stream live market data, update order books instantaneously, and execute trades with minimal latency, providing traders with a competitive edge in fast-moving markets.

Additionally, JavaScript's extensive ecosystem of libraries, frameworks, and development tools empowers developers to build sophisticated trading bots and algorithmic trading strategies. These trading bots can automate various aspects of trading, such as order execution, risk management, and portfolio rebalancing, thereby enabling traders to capitalize on market opportunities 24/7 without manual intervention.

In conclusion, the intersection of JavaScript development and cryptocurrency exchanges represents a fertile ground for innovation and technological advancement in the realm of finance. By harnessing the power of JavaScript, cryptocurrency exchanges can deliver cutting-edge trading platforms and tools that empower traders to navigate the dynamic world of digital assets with confidence and efficiency.
Basic explanation of how whitelisting works in Solidity
Tags: blockchain, web3, webdev, ethereum
Published: 2024-05-28 08:52:14

You know what whitelisting is, but you also want to understand how it works under the hood. Now imagine you have an NFT collection, and you tell the community that people who buy your NFTs right now will have priority access to the upcoming online game you and your team have been developing.

How does that whitelisting actually occurs? How is it structured in solidity?

Almost always, the addressess that purchase the NFT will be added into a mapping. According to alchemy a mapping is a hash table in Solidity that stores data as key-value pairs. They are defined like:

    mapping(address => bool) public whitelistedAddresses;

You see, the idea here is simple: When someone purchases one of your NFTs, you take their address, and put a truthy statement to it. That's what a bool is, it's a boolean. True, or false. If they have not purchased your NFT, their addresses will not be in the mapping anyway, so it will not be a truthy statement. When they do purchase, on inquiry their addresses will return a truthy statement and you'll know that they are whitelisted. 

Then, you can basically do whatever you want with this whitelistedAddresses mapping. You can use it as a guard to certain functions and only whitelisted people can do such and such.
Application error: a client-side exception has occurred (see the browser console for more information).
Tags: help
Published: 2024-05-28 08:25:17

Hi,

I'm experiencing an issue with dynamic routing in my Next.js application when deployed on cPanel. This issue does not occur during local development. The error message is:

`Application error: a client-side exception has occurred (see the browser console for more information).
The console log shows the following error:`

`https://prosale.cloud/_next/static/chunks/app/(hydrogen)/employee/%5Bid%5D/edit/page-7ae4d87d174c4f0f.js net::ERR_ABORTED 404 (Not Found)
ChunkLoadError
    at __webpack_require__.f.j (webpack-2a0249f03633b4d2.js:1:13047)
    ...`
The file page-6d6c06c2fb38fc4a.js is present in the correct directory on the server. I've ensured that all files are correctly built and uploaded. Could someone guide me on how to resolve this issue with the dynamic route?

Thank you!
Entity ve DTO
Published: 2024-05-28 08:21:30

Java'da "entity" ve "DTO (Data Transfer Object)" terimleri genellikle yazılım uygulamalarında veri yönetimi ve iletişimi için kullanılır.

1. **Entity (Varlık)**:
   - Bir veritabanı tablosunu veya veri modellemesini temsil eden bir Java sınıfıdır.
   - Veritabanında bir kaydı veya veri parçasını temsil eder.
   - Örnek olarak, bir müşteri veritabanı tablosunu temsil eden bir "Customer" sınıfı bir entity olabilir.
   - Genellikle veritabanı işlemleri için kullanılır, dolayısıyla veritabanı işlemleri doğrudan bu nesneler üzerinden yapılır.

Örnek bir entity sınıfı:

```java
public class Customer {
    private Long id;
    private String name;
    private String email;

    // Getters ve setters
}
```

2. **DTO (Data Transfer Object)**:
   - Veri aktarımı amacıyla kullanılan bir nesne veya sınıftır.
   - İki farklı sistem veya bileşen arasında veri transferi için kullanılır.
   - Entity sınıflarının veritabanı tablosu yapılarından farklı olabilecek bir formatta verileri taşıyabilir.
   - Genellikle web servisleri gibi dışarıya açılan API'lerde veya farklı mikro servisler arasında veri taşıma amacıyla kullanılır.

Örnek bir DTO sınıfı:

```java
public class CustomerDTO {
    private String name;
    private String email;

    // Getters ve setters
}
```

Entity ve DTO sınıfları bazen birbirine benzer özelliklere sahip olabilir, ancak kullanım amaçları farklıdır. Entity sınıfları veritabanı yapılarını temsil ederken, DTO'lar genellikle veri aktarımı veya iletişim amacıyla kullanılır ve veri transferi sırasında belirli bir işlevi yerine getirir.
Today's Oops 20240528
Tags: cpp, help
Published: 2024-05-28 03:29:29

Though I joined dev.to to find more fellow developers and have fun discussing this and that, I found out there are seldom something from me to actively join the communication. Yet, I think it might giggle someone if I push the "self-destruction" button myself by sharing my mistake during coding.
dev.to에 가입한 뒤로 커뮤니티에서 이런저런 활동을 하길 희망했지만, 생각해보니 저 자신은 뭔가 이런저런 소재를 던져본 적이 없더군요. 그러던 어느날, 제가 코딩 중 일상적으로 경험한 실수를 가지고 자폭개그 같은걸 하면 어떨까...... 하는 생각이 들었습니다.

So let me drop the first bomb.
자 그럼 첫번째 갑니다.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cp1hh6ywfm0y33qme2j1.png)

Now, find what's wrong with the code above. :D
(it doesn't compile at all.)
위 코드에 뭐가 잘못되었는지 찾아보세요. :D
(저거, 실행 안됩니다.)

P.S:
dev.to moderation team added #help tag on this article...... Unfortunately, this is to share occasional mistakes I experienced during coding, which I already know why it's an "oops". Thanks for adding the tag, but that's not needed, team!
dev.to 운영팀에서 이 글에 #help 태그를 추가했더군요. 유감스럽지만 이 글은 제가 코딩하면서 경험한 실수에 대한 글이고, 왜 그런 일이 발생했는지를 이미 알고 있는 터라 도움은 필요하지 않습니다(......). 열심히 일해주셔서 감사합니다만, 이번에는 번지수를 잘못 찾으신 것 같아요!
Java: enums and type safety
Published: 2024-05-28 08:18:48

> Using an enum is much better than using a bunch of constants because it provides type-­safe checking. With numeric or String constants, you can pass an invalid value and not find out until runtime. With enums, it is impossible to create an invalid enum value without introducing a compiler error.

This is only true if it's Java talking to Java. But in modern ecosystems most likely it's a Java microservice that parses incoming JSON with some Jackson library. And then when it comes to persistence you are back to fighting enums again that cannot easily get mapped to PostgreSQL fields.
Working Remotely?
Published: 2024-05-28 08:09:46

Working remotely as a developer has its advantages & disadvantages as well. Though most tech companies prefer working remotely yet they find it equally challenging to engage team members. 

This blog outlines some engagement activities for retaining team engagement while maintaining efficiency as well.

https://apyhub.com/blog/engaging-culture-remote-team

Other than the mentioned activities, what other activities would you recommend for your team to follow? Let the community know in the comments :)