teleren/devto huggingface dataset:
JavaScript Object Methods
Tags: javascript, webdev, programming, beginners
Published: 2023-12-26 18:32:15



JavaScript, known for its versatility and flexibility, empowers developers with a rich set of methods to manipulate objects. Objects in JavaScript are collections of key-value pairs, where methods play a crucial role in performing actions on these objects.

Let's delve into some essential object methods in JavaScript:

### 1. `Object.keys()`

This method extracts keys from an object and returns them as an array. It's particularly useful for iterating through an object's properties or obtaining a list of keys.

Example:
```javascript
const person = {
  name: 'Alice',
  age: 30,
  occupation: 'Engineer'
};

const keys = Object.keys(person);
console.log(keys); // Output: ['name', 'age', 'occupation']
```

### 2. `Object.values()`

Similar to `Object.keys()`, this method retrieves the property values of an object and returns them as an array.

Example:
```javascript
const values = Object.values(person);
console.log(values); // Output: ['Alice', 30, 'Engineer']
```

### 3. `Object.entries()`

This method returns an array containing arrays of key-value pairs from an object. Each inner array comprises a key-value pair.

Example:
```javascript
const entries = Object.entries(person);
console.log(entries);
// Output: [['name', 'Alice'], ['age', 30], ['occupation', 'Engineer']]
```

### 4. `Object.hasOwnProperty()`

This method checks whether an object has a specific property. It returns `true` if the object contains the specified property, otherwise `false`.

Example:
```javascript
console.log(person.hasOwnProperty('name')); // Output: true
console.log(person.hasOwnProperty('address')); // Output: false
```

### 5. `Object.assign()`

Used for copying the values of all enumerable own properties from one or more source objects to a target object. It's often employed for object cloning or merging.

Example:
```javascript
const details = {
  country: 'USA',
  hobby: 'Reading'
};

const updatedPerson = Object.assign({}, person, details);
console.log(updatedPerson);
// Output: { name: 'Alice', age: 30, occupation: 'Engineer', country: 'USA', hobby: 'Reading' }
```

### 6. `Object.freeze()` and `Object.seal()`

`Object.freeze()` prevents any modifications to an object, including adding or removing properties and modifying existing ones. `Object.seal()` prevents new properties from being added or removed but allows modifying existing ones.

Example:
```javascript
const frozenPerson = Object.freeze(person);
// Trying to modify frozenPerson will not work

const sealedPerson = Object.seal(person);
// Existing properties can be modified but not added or removed
```

These methods form the backbone of object manipulation in JavaScript, enabling developers to efficiently work with and manage objects in various scenarios.

Remember, mastering these methods empowers you to wield the full potential of JavaScript objects, making your code more robust and flexible.
Should I Write Articles in English or in My Native Language?
Tags: discuss, community, writing, career
Published: 2023-12-26 18:23:32

I find myself in a bit of a dilemma and would appreciate your thoughts on the matter.
<img width="100%" style="width:100%" src="https://media.giphy.com/media/iFjp2GQYKBleg/giphy.gif">

## The Dilemma
As the title of the article suggests, I'm not sure if I should contribute to the community **writing articles in English or in my native language**. And here is why:

## My Expirence
This marks my second article, and the first one was written in Portuguese, my native language. That was a choice that I made trying to contribute with the Brazilians seeking more content on a particular subject but may not be comfortable enough with English to read an entire article. And I was thinking about keeping that way, but one of the first comments that I got was something like: "good article, next time you should do it in english". Since then, I've been grappling with this decision.

## Why write in English?
Before writing this, I read some articles advocating for writing exclusively in English. Anyone can imagine the main reasons to do so:
- Improve your own English knowlodge;
- Reach more people;
- Help on your career growth;

And I guess that they are really valid! Also, as I consume content in English here on dev.to, I intereact a lot with people that doesn't speak my native language, so producing content in English seems like an excellent way to continue contributing.

## But why write in your native language?
A comment that I saw in one of the articles defending writing in english says: "English is the language of the internet". While I acknowledge its important role in connecting people globally, isn't that segregating a large part of the world who lack access to resources for learning a new language? Unfortunely, in Brazil, for example, having access to education is a privilege that not everyone can have.
While I aspire to contribute globally, I also want to make a difference on the life of the people from my country (even if it's a small part). Wouldn't it be more meaningful to give back to the community I'm physically surrounded by and create accessible content for them?

## Isn't writing in both languages an option?
Certainly, there's the option of writing the same content in two different languages, but I feel it might not be effective on the internet. I've never come across a successful YouTube channel, for instance, that produces content in two different languages on the same profile. I fear that duplicating all my posts, one in English and the other in my native language, might lead to losing both audiences and not reaching anyone at all.

## Share your toughts
What are your toughts? Do you have any relavant experience on the matter? I'd love to hear back from you all :)
Open Source Svelte Magic: Melting Minds through Melt UI!
Tags: podcast, webdev, javascript, beginners
Published: 2023-12-26 18:13:14


Original: https://codingcat.dev/podcast/cwcc-1-2-meltui

{% youtube https://youtube.com/embed/Crlo-Qfu6qs?feature=share %}




[GitHub Repo of Example](https://github.com/CodingCatDev/code-with-codingcat-meltui)

Melt UI is an open-source collection of component builders designed for creating user interfaces with the Svelte framework. It stands out for its accessibility and customization features, enabling developers to build user interfaces that are both accessible and uniquely styled. Here are some key aspects of Melt UI:

1. **Builder API**: Unlike traditional component libraries, Melt UI offers builders instead of components. These builders are functions that generate a collection of properties that can be assigned to any element or component, providing great flexibility.

2. **Accessibility**: Accessibility is a primary focus of Melt UI. It follows WAI-ARIA design patterns, ensuring that UI components are inclusive and user-friendly. This includes attention to aria attributes, role management, focus handling, and keyboard navigation.

3. **Style Customization**: Melt UI comes without predefined styles, allowing developers to apply their own styling to integrate seamlessly with their application's design system. This makes it compatible with various styling approaches like vanilla CSS, CSS preprocessors, or CSS-in-JS libraries.

4. **Open and Extensible**: The architecture of Melt UI is open and flexible, allowing for customization and extension of components. This supports adding event listeners and props to tailor components to specific needs.

5. **Simplified Development Experience (DX)**: Melt UI aims to simplify the development workflow. Its components are uncontrolled by default, relieving developers from managing local states. However, there's also support for controlled components for those who prefer it.

6. **TypeScript and SvelteKit Support**: Melt UI provides a fully typed API, promoting a consistent and familiar experience across components. It is also built with server-side rendering (SSR) in mind, making it suitable for SvelteKit.

7. **Community-Driven**: Being an open-source project, Melt UI is developed and maintained by a community of contributors.

Melt UI is still in its early stages, so developers might expect breaking changes in minor releases until a stable version is released.

For more detailed information and examples, you can visit the [Melt UI website](https://www.melt-ui.com/docs/introduction) and its [GitHub repository](https://github.com/melt-ui/melt-ui).
How to use SSH key with SSH agent to enhance the security of the connection in PuTTY?
Published: 2023-12-26 18:10:37

Ensuring the security of remote server access is crucial, and utilizing an SSH key is an effective way to enhance that security. This guide walks you through the process of creating a new SSH key and integrating it with the SSH agent on a Windows PC. 

By using PuTTY and Pageant, you can establish secure connections, adding an extra layer of protection to your sensitive data and streamlining the authentication process.

Also read[ how to establish secure connection by using USB serial port connection on MAC by PuTTY.
](https://medium.com/@puttygenkey/how-to-connect-usb-serial-port-on-mac-with-putty-41e043e3ff72)

**Prerequisite:**

Download and install PuTTY, Pageant, and PuTTYgen on Windows if you haven't already.

**Generating SSH Key Pair with PuTTYgen:**

Open PuTTYgen and click "Generate" to create the key pair.
Move your mouse over the blank area to generate randomness.
Select the key type and size (e.g., 4096 bits).
Save the private key with a .ppk extension and save the public key.
**Adding the Private Key to Pageant:**

Open the Pageant configuration window.
In the system tray, right-click on the Pageant icon and choose "Add Key."
**Select the generated private key file.**
If you set a passphrase, you'll be prompted to enter it.

**Adding the Public Key to the Remote Server:**

Using a text editor like nano or vi, open the public key file.
Copy the entire content of the public key.
Add the public key to your server.

**Configuring the Connection:**

Open PuTTY on your Windows machine.
Enter the remote server's public IP address or username in the Hostname section.
Set the connection type to SSH and port to 22.
In the left panel, navigate to Connection > SSH > Auth. Click "Browse" and select the PuTTYgen-generated private key.
Saving the Connection:

Enter a name in the Saved Session section and click "Save" to save the connection for later use.

**Establishing the Connection:**

Click "Open" to initiate the connection.
Enter the username and password when prompted.
In conclusion, the process of generating and integrating an SSH key with the SSH agent on a Windows PC provides a reliable and secure authentication solution for connecting to remote servers. 

By generating a new SSH key pair using programs like PuTTY and Pageant, you ensure a cryptographic handshake that enhances the privacy and integrity of data in transit.
out of the sandbox
Tags: webdev, javascript, programming, beginners
Published: 2023-12-26 18:10:30

Turbo Theme là gì?
[out of the sandbox](https://www.wsovn.net/turbo-theme-out-of-the-sandbox) là một chủ đề có cấu hình cao, cực nhanh đã được tối ưu hóa cho cả tốc độ và trải nghiệm di động. Turbo hỗ trợ đầy đủ các phần và được đóng gói với các tính năng như thanh trượt hàng sản phẩm, menu lớn, danh sách biểu trưng, lời chứng thực, thư viện hình ảnh trang chủ, giỏ hàng nhỏ tương tác và cuộn vô hạn.
Thưởng thêm 11 Shopify đã mua từ Themeforest
Nó cũng tự hào có các tính năng như chuyển trang tức thời để điều hướng cực nhanh và hai chế độ tốc độ riêng biệt. Bản phát hành 2.2 mới nhất bổ sung một loạt các phông chữ mới của Google, mẫu Câu hỏi thường gặp, phần cột văn bản trên trang chủ, bản đồ Google thang độ xám và tất nhiên là kiểu Chicago mới. Phong cách trực quan của riêng Seoul lựa chọn các hình dạng và phông chữ tròn trơn, với bảng màu tinh tế và phức tạp sẽ cho phép sản phẩm của bạn trở thành trung tâm
Mua ngay tại: [https://www.wsovn.net/turbo-theme-out-of-the-sandbox](https://www.wsovn.net/turbo-theme-out-of-the-sandbox)
Circuit Breaker Pattern in C#
Tags: csharp
Published: 2023-12-22 07:30:10

The Circuit Breaker Pattern is a design pattern that provides resilience and fault tolerance in software systems. It helps to prevent cascading failures and allows a system to gracefully handle temporary glitches and failures in remote services or components.

In C#, the Circuit Breaker Pattern can be implemented using various libraries such as Polly or resilience4net. These libraries provide the necessary components to easily implement the pattern in your code.

The Circuit Breaker Pattern works by wrapping a potentially-failing operation in a circuit breaker object. This object monitors the success or failure rate of the operation. If the failure rate exceeds a certain threshold, the circuit breaker "trips" and starts returning failures immediately without executing the operation. This helps to preserve system resources and prevent further cascading failures.

Once the circuit breaker is in a tripped state, it can periodically attempt to execute the operation again after a certain amount of time has passed. If the operation succeeds, the circuit breaker resets and resumes normal operation. However, if the operation continues to fail, the circuit breaker remains tripped, protecting the system from unnecessary failure.

The Circuit Breaker Pattern also provides a mechanism for notifying the system when it is in a tripped state or when it transitions back to normal operation. This allows the system to react accordingly, such as providing fallback behaviors or logging the failures.

Overall, the Circuit Breaker Pattern is a powerful tool for improving the resilience and reliability of your C# applications. It helps to handle transient failures, balance load, and protect your system from cascading failures. By implementing this pattern, you can ensure that your application can gracefully handle temporary glitches and continue operating smoothly.
Task 4
Published: 2023-12-26 17:51:37

**Difference between Sanity and Smoke testing:**

SANITY:

- Sanity Testing is done by testers.
- Sanity Testing verifies the new functionality like bug 
  fixes.
- Sanity testing is a subset of Regression Testing.
- Sanity Testing verifies only a particular component.

SMOKE:

- Smoke Testing is done by both developers and testers.
- Smoke Testing verifies the critical functionalities of the 
  system.
- Smoke testing is a subset of acceptance testing.
- Smoke testing verifies the entire system from end to end.


**Difference between validation and verification:**

VALIDATION:

- Purpose:
 Validation focuses on ensuring that the software meets the requirements and expectations of the customer.

- Process:
 It involves testing and validating the actual product.

- Testing Type:
 Validation is a dynamic testing process.

- Execution of Code:
 It includes the execution of the code.

- Methods Used:
 Black Box Testing, White Box Testing, and non-functional testing are used for validation.

- Goal:
 The goal of validation is to validate the actual product.

- Timing:
 Validation begins as soon as the project starts.

- Defect Detection:
 It can find bugs that could not be found during the verification process.

- Responsibility: 
Validation is executed by the testing team.

VERIFICATION:

- Purpose:
 Verification focuses on ensuring that the software correctly implements the specific function or feature.

- Process: 
It involves checking documents, design, codes, and programs.

- Testing Type:
 Verification is a static testing process.

- Execution of Code:
 It does not include the execution of the code.

- Methods Used:
 Reviews, walkthroughs, inspections, and desk-checking are commonly used methods for verification.

- Goal: 
The goal of verification is to validate the application and software architecture against specifications.

- Timing: 
Verification occurs before validation.

- Defect Detection: 
It can find bugs in the early stages of development.

- Responsibility: 
The quality assurance team typically handles verification.


**AGILE METHODOLOGY:**

Agile is a people-focused, results-driven approach that respects our rapidly changing world. It centers around adaptive planning, self-organization, and short delivery times, using frameworks like Scrum and extreme Programming. Whether in software development or other domains, Agile has proven successful for teams aiming to deliver value efficiently and collaboratively.


**EPIC AND USER STORIES:**

- Stories:
 also called “user stories,” are short requirements or requests written from the perspective of an end user.

- Epics:
 are large bodies of work that can be broken down into a number of smaller tasks (called stories).
Navigating the Major Domains of AI
Tags: ai, beginners, tutorial, datascience
Published: 2023-12-26 17:31:00

In the dynamic landscape of artificial intelligence (AI), understanding the major domains is crucial for those delving into AI tutorials or pursuing advanced studies like a [Masters in Data Science](https://www.almabetter.com/degrees/masters-in-computer-science-data-science-ai). Let's explore [key domains in AI](https://www.almabetter.com/bytes/articles/domains-of-ai), shaping the future of technology.

1. Machine Learning (ML):

Central to AI, ML focuses on creating algorithms that enable systems to learn from data. Techniques include supervised learning, unsupervised learning, and reinforcement learning. Mastery of ML is fundamental for those engaged in AI tutorials and pursuing a data science course.

2. Natural Language Processing (NLP):

NLP empowers machines to understand, interpret, and generate human language. It's integral to chatbots, language translation, sentiment analysis, and voice recognition. AI enthusiasts keen on communication applications will find NLP a captivating field in their AI tutorial journey.

3. Computer Vision:

Computer Vision enables machines to interpret and make decisions based on visual data. Applications range from facial recognition to image and video analysis. Those specializing in image processing or pursuing a Masters in Data Science can find a wealth of opportunities in this domain.

4. Robotics:

AI plays a pivotal role in robotics, where intelligent systems mimic human actions. It involves combining sensors, actuators, and AI algorithms for autonomous decision-making. Robotics enthusiasts, especially those in AI tutorials, will discover a fascinating intersection of technology and automation.

5. Expert Systems:

Expert Systems emulate human expertise in specific domains. These rule-based systems use knowledge representation to solve problems and make decisions. Understanding expert systems is beneficial for AI tutorial enthusiasts seeking to apply AI in specialized fields.

6. AI in Healthcare:

The application of AI in healthcare involves predictive analytics, personalized medicine, and image analysis. Individuals pursuing a Masters in Data Science with a focus on healthcare data will find this domain particularly promising for advancements in diagnosis and treatment.

7. AI in Finance:

In the financial sector, AI is employed for fraud detection, risk management, and algorithmic trading. Professionals in finance and data science courses can leverage AI techniques to extract insights from vast datasets, enhancing decision-making processes.

Conclusion:

The vast domains of AI offer diverse opportunities for enthusiasts embarking on an [AI tutorial](https://www.almabetter.com/bytes/tutorials/artificial-intelligence) journey or pursuing a [Data Science course](https://www.almabetter.com/courses/full-stack-data-science). Whether delving into machine learning, exploring the realms of natural language processing, or applying AI in specialized sectors, a comprehensive understanding of these domains is key to unlocking the full potential of artificial intelligence in the modern world.
IndexedDB: Understanding Performance Pitfalls (Part 1)
Tags: webdev, pwa, indexeddb, performance
Published: 2023-12-26 17:39:41

The main issue we’re addressing here is the long initialization time of IndexedDB.

When you initiate a connection to a database, the code typically looks like this:

`window.indexedDB.open("TestDB", 1);`

Normally, this process is quite fast, taking around 20 milliseconds — a pretty swift operation. However, during the first-time setup, it might take a bit longer because it involves creating the database from scratch.

Feel free to try it out for yourself. Go to the [sandbox](https://roverboberrr.github.io/indexeddb-perf-issues/src/) and take a look at the “Initialization Time” value.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/12gckogmzi71log2t4c8.png)

After refreshing the page a few times, you’ll see that this value typically remains low.

At the moment, IndexedDB is empty. It consists of 30 tables, but there’s no data in them. You can verify this by opening DevTools and checking the tables and their contents.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/4el8hhc839zgf7yssxux.png)

Let’s change this by adding some data. Simply click the “Add Items” button, and the script will start populating the tables.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x2yhbyrq5zqa53pt00j5.png)

Please wait until it’s finished. This will increase the overall size of IndexedDB to 379 Mb.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pzo6t4jxhna4fla94u1f.png)

After refreshing the page, you may notice a slightly higher “Initialization Time” value — nothing to be too concerned about at this stage.

However, try closing the tab and reopening it; this time, you might experience a noticeable delay, potentially up to 2 seconds. Keep in mind that the exact duration can vary depending on your device and browser. My tests were conducted on a Mac using Chrome.

If you continue to add more data, this delay will become even longer.

Making your users wait for a few seconds when they open your web application is not ideal. To address this issue, consider these tips:

1. Don’t block your UI rendering while waiting for IndexedDB. Opening a connection is an asynchronous operation, so load and display what you can to your users, and wait for data from IndexedDB in the background. Once it’s available, render the data.
2. Review what you store in IndexedDB. If you’re storing files or media, think about using a Service Worker and Cache API. This approach can simplify the database structure, reduce its size, and enhance its performance.
3. Consider splitting your database into multiple databases. For instance, if your application can be used by multiple users on the same device, create a separate database for each user. With a single database containing 800 megabytes of data, initialization time may be around 3 seconds. However, by dividing it into two databases, the initialization time can be reduced to 1.5 seconds.
Ibuprofeno.py💊| #02: Explica este código Python
Tags: python, programming, beginners, spanish
Published: 2023-12-26 17:24:43

## **<center>Explica este código Python</center>**
#### <center>**Dificultad:** <mark>Básico</mark></center>

```py
if True:
print("True")
```

- A. `True`
- B. `1`
- C. `IndentationError`
- D. `TypeError`

---

Respuesta en el primer comentario.