teleren/devto huggingface dataset:
Liquiditätsabbau und Einkommensmöglichkeiten auf dem BitNest-Kryptowährungsmarkt
Published: 2024-04-28 04:35:04

1. Liquiditätsabbau: BitNest ermöglicht es Benutzern, am Markt teilzunehmen und Liquiditätsanbieter zu werden, indem es Liquidität für Kryptowährungen bereitstellt. Benutzer können ihre Kryptowährungen in den Liquiditätspool von BitNest einzahlen und so ausreichend Liquidität für Handelspaare bereitstellen. Dies trägt dazu bei, die Markttiefe und Liquidität der Handelspaare zu verbessern, die Transaktionskosten zu senken und mehr Händler zur Teilnahme zu bewegen.

2. Einnahmemöglichkeiten: Als Liquiditätsanbieter haben Nutzer die Möglichkeit, Belohnungen aus Transaktionsgebühren zu erhalten. Basierend auf dem von den Benutzern bereitgestellten Liquiditätsanteil erhalten sie einen entsprechenden Anteil an Transaktionsgebührenprämien. Dies bedeutet, dass Benutzer durch die Bereitstellung von Liquidität mit Pass-Wertpapieren und Pass-Geldflüssen belohnt werden können und so ein stabiles Einkommen erzielen.

3. Transaktionskosten reduzieren: Durch die Bereitstellung von Liquidität kann die BitNest-Plattform die Geld-Brief-Spanne von Handelspaaren reduzieren und die Transaktionskosten senken. Für die Händler bedeutet dies geringere Handelsgebühren und damit höhere Handelsgewinne.

4. Verbesserung der Marktliquidität: Die von den Benutzern bereitgestellte Liquidität trägt dazu bei, die Marktliquidität zu erhöhen und Transaktionen einfacher und reibungsloser zu gestalten. Dies lockt mehr Händler und Investoren zur Teilnahme an der BitNest-Plattform, was die Marktaktivität und -entwicklung weiter fördert.

5. Kapitalrendite: Durch die Teilnahme am Liquiditätsabbau auf dem Kryptowährungsmarkt können Benutzer eine relativ stabile Kapitalrendite erzielen. Obwohl die Rendite aufgrund von Marktschwankungen schwanken kann, können stabile Transaktionsgebührenprämien langfristig gesehen kontinuierliche Vorteile für Liquiditätsanbieter bringen.

Wenn Sie mehr über BitNest erfahren möchten, können Sie mich per Telegram kontaktieren: https://t.me/Serena1680 Ich bin Serena, die Leiterin des Rekrutierungsteams von BitNest Loop
[Sequelize + mariaDB] index 걸린 컬럼 삭제하기
Tags: sequelize, mariadb
Published: 2024-04-28 04:24:14

index가 걸린 필드를 삭제할 때 `Cannot drop index 'notices_approval_id_foreign_idx': needed in a foreign key constraint` 에러가 뜬다. 

```javascript
async down(queryInterface, Sequelize) {
  await queryInterface.sequelize.query(
    "ALTER TABLE notices DROP CONSTRAINT if exists notices_approval_id_foreign_idx",
  );
  await queryInterface.sequelize.query("ALTER TABLE notices DROP COLUMN if exists approval_id");
}
```

원래는 [removeConstraint](https://sequelize.org/api/v6/class/src/dialects/abstract/query-interface.js~queryinterface#instance-method-removeConstraint), [removeColumn](https://sequelize.org/api/v6/class/src/dialects/abstract/query-interface.js~queryinterface#instance-method-removeColumn) 을 사용해야하는데, 안돼서 쿼리를 직접 사용해야 한다.
Yoga Bot 360
Tags: cozechallenge, devchallenge, ai, machinelearning
Published: 2024-04-28 03:14:08

*This is a submission for the [Coze AI Bot Challenge](https://dev.to/devteam/join-us-for-the-coze-ai-bot-challenge-3000-in-prizes-4dp7): Bot Innovator.*

## What I Built
Oh, I see! My Yoga Bot 360 is a virtual yoga companion that provides personalized yoga guidance. It offers step-by-step instructions for various yoga poses, helping you improve your form and alignment. It also creates customized yoga routines based on your skill level, goals, and available time. Additionally, it includes guided breathing exercises and meditation sessions to promote relaxation and mindfulness. The Yoga Bot 360 keeps track of your progress and offers reminders to help you stay consistent. It's a wonderful tool for enhancing your yoga practice and finding balance in your life. 🧘‍♀️🤖✨
Yoga Bot 360 solves the problem of not having access to a physical yoga instructor or not being able to attend yoga classes in person. It provides a virtual yoga experience, offering guidance, instructions, and personalized routines that you can follow from the comfort of your own home. With Yoga Bot 360, you can practice yoga at any time that suits you, without the limitations of a set schedule or location. It brings the benefits of yoga, such as improved flexibility, strength, and mindfulness, right to your fingertips.

## Demo

https://www.coze.com/store/bot/7362722901353299973?bot_id=true


## Your Configuration


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hoj7xoxedjtc4079qjv8.jpg)

## Journey

I created ai bot for the first time. And I learned how to created ai bot for real-world.Now I will create more ai bot some other business.

<!-- Thanks for participating! -->
How to automatically calculate and display the aggregate values of the VTable's pivot table?
Published: 2024-04-28 02:49:38

How to automatically calculate and display the aggregate values of the VTable's pivot table?

## Description
Why is the aggregate node data not displayed after the pivot table is set to display in tree structure?

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/22d1dv7fz6xq867advkv.png)


## Solution 
Aggregation rules need to be configured so that data can be automatically aggregated during data analysis and the aggregated value can be used as the display value of the parent cell.
```
  dataConfig: {
    totals: {
        row: {
          showSubTotals: true,
          subTotalsDimensions: ['Category'],
          subTotalLabel: 'subtotal'
        }
      }
  },
```
## Results
Online effect reference:https://visactor.io/vtable/demo/table-type/pivot-analysis-table-tree

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jmg3jmgbqicveij50291.png)


## Related Documents
Tree Table Demo：https://visactor.io/vtable/demo/table-type/pivot-analysis-table-tree
Tutorial on pivot table data analysis：https://visactor.io/vtable/guide/data_analysis/pivot_table_dataAnalysis
Related api：https://visactor.io/vtable/option/PivotTable#dataConfig.totals
github：https://github.com/VisActor/VTable
Unlocking the Benefits of Professional Locksmith Services in Redlands, CA
Tags: locksmith, burglarproofing, lockkeying, locksmithservice
Published: 2024-04-28 02:33:36


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/vgddw2q4qxtc3zukbcdb.png)

**Introduction**

When it comes to safeguarding your most valuable possessions, one cannot underestimate the importance of a reliable locksmith service. Whether you are a homeowner, business owner, or vehicle owner in Redlands, CA, having access to a reputable locksmith is crucial for your security needs. In this blog post, we will explore the key benefits of hiring a professional locksmith service like [Crown Locksmith Services](https://crownlocksmithie.com/redlands-locksmith)  in Redlands, and how they can help ensure the safety and peace of mind you deserve.

**24/7 Availability**
One of the significant advantages of professional locksmith services in Redlands is that they are available around the clock. Emergencies can strike at any moment, and finding yourself locked out of your home, vehicle, or office can be incredibly stressful and frustrating. Fortunately, with a reliable locksmith service, you can rest assured knowing that help is just a phone call away, no matter the time of day or night.

**Fast Response Times**
A reputable locksmith service understands the urgency of your situation and aims to provide prompt assistance. Whether you are locked out, need a lock repaired or replaced, or require a new set of keys, professional locksmiths in Redlands strive to arrive at your location within minutes, equipped with the necessary tools and expertise to get the job done swiftly and efficiently.

**Wide Range of Services**
Professional locksmith services in Redlands are well-versed in addressing a wide range of security needs. From residential to commercial and automotive locksmith solutions, they offer a comprehensive set of services tailored to meet your specific requirements. [READ MORE HERE...](https://www.bloglovin.com/@crownlocksmithie/unlocking-benefits-professional-locksmith-12582639)
Exploring the V8 JavaScript Engine
Tags: webdev, javascript, beginners, programming
Published: 2024-04-28 00:33:29


## Introduction

JavaScript is a popular and widely used programming language for creating dynamic and interactive web content. Behind the scenes, it is powered by engines that interpret and execute the code written in JavaScript. One such engine is V8, created by Google for their Chrome web browser. In this article, we will explore the V8 JavaScript engine and understand its advantages, disadvantages, and features.

## Advantages of the V8 JavaScript Engine

One of the biggest advantages of V8 is its speed and efficiency. It uses just-in-time (JIT) compilation, which converts the code into machine code at runtime, making it faster than traditional interpreters. It also has a garbage collector that automatically manages memory, freeing up space for new objects. Additionally, it supports parallel processing, making it capable of handling large amounts of data at once.

## Disadvantages of the V8 JavaScript Engine

The main disadvantage of V8 is its heavy memory usage, which can lead to performance issues in applications that require large amounts of data manipulation. It also does not support some features of the latest version of JavaScript, making it challenging for developers to utilize the language to its full potential.

## Features of the V8 JavaScript Engine

V8 is continuously evolving, with regular updates and new features being added. Its latest version, V8 9.1, supports many modern JavaScript features such as optional chaining, nullish coalescing, and private class methods. It also has a powerful built-in debugger and provides extensive profiling capabilities to help developers analyze and optimize their code.

### Key Features of V8 Engine

- **Just-In-Time Compilation:** Improves execution speed by compiling JavaScript to machine code at runtime.
- **Garbage Collection:** Efficient memory management that automatically clears unused data.
- **Support for Modern JavaScript:** Adapts to newer syntax and features to keep up with JavaScript development trends.

### Example of Modern JavaScript Features in V8

```javascript
// Optional Chaining
const nestedProp = obj?.nested?.prop;

// Nullish Coalescing
const setting = value ?? defaultValue;

// Private Class Methods
class Example {
  #privateMethod() {
    return 'secret';
  }
}
```

## Conclusion

The V8 JavaScript engine has revolutionized the way we write and execute JavaScript code. Its advanced features and efficient performance make it a popular choice amongst developers. However, it does come with its downsides, and continual development and improvements are necessary to keep up with the ever-evolving landscape of web development. Nevertheless, V8 remains a crucial component in making the internet a more dynamic and interactive place.
Whitelisting URL Paths Using Regular Expressions
Tags: webdev, javascript, programming, learning
Published: 2024-04-28 00:27:58

In software development, there are times when you need to restrict the execution of certain blocks of code based on the incoming request URL. One common way to achieve this in a web application is by whitelisting specific URL paths using regular expressions (regex).

### Why Use Regular Expressions?
By using regex, you can create a pattern that matches a set of URL paths that you want to allow or "whitelist". This approach provides flexibility and allows you to define complex matching criteria for your whitelisted paths.

### Creating the Whitelist
To whitelist specific request paths, you'll need to create a regular expression for each path. Once you have all the individual regex patterns, you can merge them into a single regex pattern for better performance.

Here's an example demonstrating how to create a whitelist using a single regex pattern:
``` typescript
/**
 * Regular expression pattern for whitelisting request paths.
 * Each pattern represents an allowed HTTP method and path.
 */
const whiteListedPathsPattern = new RegExp(
  [
    `^GET /api/user$`,
    `^POST /api/app//products/search$`,
    `^POST /api/app/uninstall$`,
    `^POST /api/app/disconnect$`,
    `^GET /api/app/complaince/[a-z_]*$`,
    `^POST /api/notification/brand$`,
  ].join('|')
);

const incomingRequestUrl = 'URL_HERE';

if (whiteListedPathsPattern.test(incomingRequestUrl)) {
    // Execute your code block
    console.log('Request is whitelisted. Proceeding with the execution...');
} else {
    // Handle unauthorized request
    console.log('Request is not whitelisted. Access denied.');
}
```

### Complete Express.js Example
For a comprehensive example demonstrating how to implement this in an Express.js application, check out this [GitHub Gist](https://gist.github.com/afraz-khan/8666b111d55ffaa8a7d33df12b9e1d94#file-whitelist_request_paths-ts).
What are the pros and cons of using GitHub Copilot?
Tags: github, githubcopilot, ai, microsoft
Published: 2024-04-27 23:44:30

GitHub Copilot continues to soar to new heights in the two years since its launch. Over the years it has grown to over 1 million paid subscribers across over 37,000 organizations. This makes it the most widely adopted AI developer tool in history and it continues to redefine how developers code. 

Let’s analyze the pros of GitHub copilot. It:

1. Suggests code as you type -  You can view and incorporate suggestions from GitHub copilot directly within the browser. You can accept, partially accept, reject, or view alternative suggestions if there are any.

2. Answers coding questions -  GitHub Copilot Chat can generate unit test cases, propose code fixes, answer coding questions, and explain your code. But don’t forget your due diligence. Always check and test your code. 

3. Refactors and improves code - Copilot suggests refactoring using the context of your codebase and recommends potential improvements to selected code such as improved handling of errors and edge cases, or changes to the logical flow to make the code more readable.

4. Fixes issues - Copilot can suggest possible fixes based on the error message, the code’s syntax, and the surrounding code. Also, when a command fails to run in the terminal, Copilot offers a Quick Fix to explain what happened. 

6. Generates commit messages and PR descriptions - Copilot uses AI to describe your code changes. This feature makes writing descriptive and helpful commit messages as easy as clicking a button.

Let’s see the cons of GitHub Copilot. The most evident disadvantage is that developers who heavily rely on Copilot risk being overdependent on automated suggestions. This is a problem, especially for beginners. Additionally, Copilot may generate inaccurate code that appears to be valid. 

To mitigate inaccurate code, you should always review and test the code. 

Developers must take a thoughtful approach to integrating this tool into their process. GitHub copilot is meant to increase productivity and accelerate the rate of software development, not replace the developer’s decision-making and critical thinking.
Upgrading your GitHub README
Tags: github, git, networking, discuss
Published: 2024-04-27 23:08:48

Hello everyone!

How's everyone doing? Today I came here to talk about GitHub. **Since I'm starting my studies as a developer again, I saw that it's important to update my GitHub and make it presentable.**

I have been using my account for a few years, but sometimes I forgot to keep it up to date. This year, I'm going to do my best to keep it updated with all the projects and content I'm working on.

I changed my bio and [README](https://github.com/MichelleMello), updated my social media, and also updated my projects. I want my profile to represent who I am and what I want for my life/future.

As I was changing my profile, I was thinking, "What are the best practices to have on GitHub? What is the market looking for?". **And that made me write here and ask you guys: What do you think is important in a GitHub profile? Leave your tips in the comments!**.

_PS: If you feel like, please let me know what [I can do to make my profile better](https://github.com/MichelleMello)! I would really appreciate it! And leave your profiles here in the comments so everyone can meet, get inspired, and connect!_
Need for Speed: nextjs drift
Published: 2024-04-27 22:53:30


### From


![Before](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gw509tb0qxf2nanabcub.png)


### To


![After](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/7yu8ps42wj1yyyaiajc3.png)

How did we come here? What were we using earlier and what we switched to?

Both the screenshots are from the same website [https://www.fourcore.io](https://www.fourcore.io) before and after the rewrite.

Earlier we were using nextjs 12 and after switching to 14 we made the page load time 3x faster and improved almost every statistics of speed, performance and accessibilty.

How did we do it?

1. Reducing the number of dependencies, we removed almost every unnecessary dependency and uses only framer. tailwind and next-mdx.
2. Rendering everything on server as either static content or static HTML which means it’s pre-rendered and client doesn’t have to load any data.
3. Use client component in composition instead of making the whole page as a client component so that only that part that needs to be hydrated stays as client component and everything else renders on server.
4. If data is not be mutated or revalidated, use SSG; even if there are mutations to be done, using server actions will make it faster instead of whole page reload.

We have more than 30 mdx pages, rendering on server on build, which makes the loading faster and adding SEO is much easier.

### Conclusion

Speeding up a page load and first contentful paint improves the retention and interaction on the page driving better user experience and more click on CTA. ;)

Spend time and remove whatever extra js bundle you have and make use of new nextjs feature to make your website
BLAZINGLY, BLEEDING EDGE FAST /s.
Unraveling the Mysteries of Sockets, Files, and Streams in Java
Tags: java, programming
Published: 2024-04-27 22:51:33

Java, a versatile and widely-used programming language, offers a rich API for handling I/O operations through its Sockets, Files, and Streams. Inspired by the practical insights from “The Java Workshop,” let’s dive into the world of network and file I/O in Java.

#Sockets: The Gateway to Network Communication
Sockets provide a means for both server and client applications to communicate over a network. In Java, the java.net.Socket class is the gateway to this fascinating world of inter-process communication.

Here’s a basic example of a client-server communication using sockets:

![Sockets](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5b0dj5yz8aqula5zhvun.png)

#Files: The Cornerstone of Data Storage
Java’s file handling capabilities are robust and allow for seamless reading and writing operations. The `java.io.File` class represents a file or directory path and provides methods to inspect and modify file properties.

![Files](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/c322bbx1r6ryq0tm4mnz.png)

#Streams: The Flow of Data
Streams in Java are the backbone of I/O operations. They are used to read from or write to a source, which could be a file, an array, a peripheral device, or a socket. The InputStream and OutputStream classes form the basis of Java’s stream hierarchy.

Here’s how you can use streams to read and write data:

![Streams](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x76rgb3hxobwj8y9mnbs.png)

#Conclusion

Understanding and utilizing Sockets, Files, and Streams are fundamental to Java programming. By mastering these concepts, you can build efficient and scalable applications that interact with the world around them. For a deeper exploration, “The Java Workshop” is an excellent resource that provides a hands-on approach to learning Java.
Apple Vision Pro Has Shipments Cut. Was Clearly Unavoidable.
Tags: apple, programming, vr
Published: 2024-04-27 22:18:59

Let's go to my five minutes a la Dvorak...

Apple has announced that is revising its market strategy for its last product the Apple Vision Pro, this was because of the low demand that was required in the market, they were expecting something around 700-800k but the demand was half of this, nearly 400-450k, which is not a surprise.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1ge5i965goescg06v9d9.jpg)

What price of U$3499 is too expensive too the majority of the market and doesn't appear to have the same benefits that Hololens 2 has, since the price tag is the same, other than that VR is something that has been around for a long time time and never appear to completely take off in the market to the general consumer.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1grp2it00vjhzhecdy5q.gif)

I had my first experience with VR glasses in the middle of the 1990s, and the technology was around a lot before that, Google and Microsoft did a good job with the VR googles, mainly I think that Hololens have real use in cases such as manufacturing, military and medicine, what I think that Vision Pro is lacking.

Well, I was not the unique that had seen that maybe the tech was not to take off with Apple, at last, was a cleary unavoidable failure.
Project Update: Redoing ERD and Fixing Database
Tags: webdev, beginners, programming
Published: 2024-04-27 22:10:24

Hi everyone! 👋 It's Juan Jose here with a quick update on my TechTribe Pro project. I wanted to share some insights into the progress I've made and some adjustments I'm making along the way.

Redoing ERD:
One of the key aspects of any project is proper planning, and I must admit, I didn't brainstorm as thoroughly as I should have initially. As a result, I've decided to take a step back and redo the Entity-Relationship Diagram (ERD) for my project. By revisiting the ERD, I aim to ensure that the database structure accurately reflects the needs of the application and facilitates efficient data management.

Fixing Database:
In line with redoing the ERD, I'll also be focusing on fixing any issues with the database implementation. This includes addressing inconsistencies, refining relationships between entities, and optimizing the database schema for better performance and scalability. It's crucial to have a solid foundation in place, and I'm committed to ensuring that the database meets the requirements of TechTribe Pro.

I appreciate your patience and understanding as I take the necessary steps to improve the project. I'm confident that these adjustments will result in a more robust and reliable application in the long run. Stay tuned for further updates, and thank you for your continued support!