teleren/devto huggingface dataset:
Understanding Comments in Lua
Tags: lua, beginners, programming
Published: 2024-03-21 23:39:12

# Introduction

The comments in Lua are useful when you need to navigate to particular parts of the code. They help move through your codes by providing some form of a foretaste. This article explores the importance of comments in Lua and provides ideas on how they can be effective in eliminating ambiguity among technical terms.

# Index

- Single Line Comments
- Multi-Line Comments
- Examples
- Conclusion

# Single Line Comments

Single line comments quickly explain code with just a few characters placed adjacent to each other started with two hyphens (`–`). These give short descriptions of what is going on in the source code.

```lua
-- Let's add up some numbers
local a = 5
local b = 10
local sum = a + b  -- Storing the result in 'sum'
print("Sum:", sum) -- Showing the result
```

Output:
```
Sum: 15
```

# Multi-Line Comments

For more detailed explanations, we have multiline comments. These are enclosed within `--[[` and `--]]` symbols and provide enough room for explaining the code.

```lua
--[[
    Here's a function to figure out the area of a rectangle
    Parameters:
        width (number): The width of the rectangle
        height (number): The height of the rectangle
    Returns:
        number: The area of the rectangle
--]]
function calculateArea(width, height)
    return width * height
end
```

# Examples

Let's dive into a couple more examples to see how comments can make our Lua code crystal clear:

```lua
-- Example 1: Finding the square of a number
local x = 5
local square = x * x  -- Getting the square
print("Square of", x, ":", square) -- Displaying the result
```

Output:
```
Square of 5: 25
```

```lua
--[[
    Example 2: Checking if a number is even or odd
    Parameter:
        num (number): The number to check
--]]
function checkEvenOdd(num)
    if num % 2 == 0 then
        print(num, "is even")
    else
        print(num, "is odd")
    end
end

-- Let's test out some numbers
checkEvenOdd(7)
checkEvenOdd(10)
```

Output:
```
7 is odd
10 is even
```

# Conclusion

Comments are like little tour guides for your Lua code. They help you and others understand what's happening and why. You can make your code more accessible and easier to maintain. So don't be shy - leave some helpful notes around your Lua scripts and watch your code clarity soar!
É por isso que o trabalho remoto é ruim
Tags: career, braziliandevs, returntooffice, trabalhoremoto
Published: 2024-03-21 23:38:18

É ruim porque você não precisa acordar mais cedo do que o necessário para se preparar para o trabalho.

É ruim porque você não precisa dirigir ou pegar transporte público para ir ao escritório.

É ruim porque você economiza tempo e dinheiro no deslocamento.

E esse tempo você pode passar com seus entes queridos.

Mas eu realmente acredito que é ruim principalmente porque seu chefe não pode olhar por cima do seu ombro para ver o que você está fazendo no computador.

Como você pode ver, estou sendo sarcástico aqui, já que sou um dos maiores defensores do trabalho remoto. Estou ciente de seus benefícios e posso dizer o quanto minha vida, saúde, tanto pessoal quanto profissional, melhoraram desde que comecei a trabalhar 100% remotamente.

É tudo sobre a liberdade de fazer o que você precisa fazer de onde quer que esteja.

Para mim, é absurdo viajar para outro lugar apenas para ficar na frente de um computador o dia todo quando posso fazer exatamente a mesma coisa em casa.

Acreditei que a pandemia já havia nos ensinado essa lição da maneira mais difícil possível que poderíamos imaginar, mas parece que algumas empresas têm memórias ruins e não lembram mais de nada.

Sem o trabalho remoto, a maioria das empresas de tecnologia teria entrado em colapso durante esses últimos anos.

Então, só consigo ver esses movimentos de "Retorno ao Escritório" (RTO) acontecendo em várias empresas ao redor do mundo como algo semelhante a "Voltar à Era Industrial".

Estamos na "Era da Tecnologia da Informação", praticamente na "Era da Inteligência Artificial", uma nova era disruptiva que está começando (eu diria que começou há muito tempo, mas isso é assunto para outro post).

Para mim, não há surpresa em ver pessoas deixando seus empregos no Google ou em qualquer outra grande empresa de tecnologia bem remunerada, especialmente nos casos em que uma mudança de endereço se torna necessária para retornar ao escritório.

As pessoas estão começando a perceber o que é "Trabalhar para Viver" e rejeitar "Viver para Trabalhar".

Essa também é minha filosofia de vida, e eu realmente acredito nela há muitos anos, com muitos resultados.

O que você acha disso? Me deixe saber na seção de comentários abaixo.

Vejo você no próximo post!

[Ver post original em inglês](https://dev.to/igorfragadev_en/thats-why-remote-work-sucks-13a0)

[Ver publicação original em inglês em igorfragadev.com](https://igorfragadev.com/thats-why-remote-work-sucks/)
The Journey from Sound Engineer to Software Engineer: CodeNewbie Podcast
Tags: codenewbie, podcast, career, discuss
Published: 2024-03-21 23:10:02

### Hey hey hey!

If you are new here, hello and welcome! It's me Rachel, and I am here today with CodeNewbie Podcast, where we come to you weekly with an interview with a tech professional, sharing supportive advice for newbies in tech. 

_Let's get into it._ 


![Bear putting on headphones.](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/sznj92ljazik0a707trl.gif)

---

Our second episode of this season just came out with our host @saronyitbarek and @aaspinwall, Frontend Engineer at Amazon.  

You’ll hear how Alejandro began his career deeply immersed in the world of music and what led him to transition to tech. He emphasizes the importance of adaptability in his career shift and provides insights into how coding bootcamps played a pivotal role in his development.

Additionally, Alejandro explores the impact of artificial intelligence in his work, particularly discussing how AI tools have become an integral part of his coding toolkit. His experiences offer valuable perspectives on the practical use of AI in software engineering, and his story sheds light on the evolving nature of tech careers and the increasing role of AI in the industry.

To see more of Alejandro's work, [you can visit his website here](https://www.aaspinwall.com/). 

---

If you would like to listen you can:

- [Listen on Apple Podcasts](https://podcasts.apple.com/us/podcast/codenewbie/id919219256?i=1000649839240)

- [Listen on Spotify](https://open.spotify.com/episode/76IraZdmmCptLg9Nqna577?si=cf64ffd6cbb745de)

- Listen right here on DEV:

{% podcast https://dev.to/codenewbie/s27e2-the-journey-from-sound-engineer-to-software-engineer-alejandro-aspinwall %}

Or, listen wherever you normally get your podcasts.


---

### We will see you next week for more of Season 27!!!! Wooo!!!!

If you are eager for more podcast-discussions, I also run [Podcast Palooza](https://dev.to/devteam/podcast-palooza-what-are-you-listening-to-interview-edition-3a8) on Mondays to share your favorite podcast-related content!

Sincerely,
**Rachel from the DEV and CodeNewbie Teams**
(they/them)

---

_PS: **WOW** We would love for you to review our podcast, drop a rating, drop a like, or whatever you can to show your support. It truly means a ton, we love to see your kind words, and we wouldn't be here without you!_
Java library for RuTracker
Tags: java, library, torrent, programming
Published: 2024-03-21 23:08:37

## RuTracker4j Library

Written in Java.
RuTracker4j simplifies the process of accessing RuTracker data, torrent search, obtain information about specific topics, etc.

## Features:
- **Torrent Search**
- **Access Topic, Category, Attach, Torrent links, etc. Details**

Explore on GitHub: [RuTracker4j Repository](https://github.com/silenzzz/RuTracker4j)

I’m open to feedback and suggestions for enhancing functionality. Thanks.
Day 932 : Looking Back
Tags: hiphop, code, coding, lifelongdev
Published: 2024-03-21 23:07:07

_liner notes_:
- Professional : Had a couple of meetings today. Got some good feedback on a blog post I'm writing, made some changes to the document and demo. Started the content review process. In between all of that, I was replying to community questions. That took up a bunch of time trying to figure stuff out. I'm tired. haha

- Personal : Last night was pretty productive. I picked up some projects on Bandcamp. Put together the social media posts for Friday. Did some research on View Transition API and even got a little demo working. Ended the night watching a couple of episodes of "Extraordinary".


![The picture shows a rocky beach from above. The water is a deep blue and the sand is orange. The beach has a cliff with different sized rocks going all the way into the water. There is a small town in the distance.
The location is Sagres, Portugal.](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/eeql13fuhlce8nz8264x.jpg)

Going to put together the starting tracks for this week's radio show and get the social media posts ready. Going to see if I can get the View Transitions demo I got working to use an SVG that I want for a side project. Looking back at a project that uses the SVG, I think I can make it work. Planning to end the night watching a couple of episodes of "Extraordinary".

Have a great night!

peace piece
Dwane / conshus
https://dwane.io / https://HIPHOPandCODE.com
{% youtube 5Xv4kO0vYXM %}
Web Storage Api
Tags: frontendchallenge, devchallenge, javascript, webdev
Published: 2024-03-21 23:00:00

_This is a submission for DEV Challenge v24.03.20, One Byte Explainer: Web Storage Api

## Explainer
The Web Storage API helps websites save stuff in your browser, kind of like big, fancy cookies. LocalStorage keeps things even after you close your browser, while SessionStorage only keeps them for your current browsing session. This helps sites remember your choices, run faster, and sometimes work without internet (but not always).


## Additional Context
Here's a simple example of how you can use the Web Storage API in JavaScript 👇🏽

```jsx
// Storing data using localStorage
localStorage.setItem('username', 'exampleUser');
localStorage.setItem('isLoggedIn', true);

// Retrieving data from localStorage
const username = localStorage.getItem('username');
const isLoggedIn = localStorage.getItem('isLoggedIn');

console.log(username); // Output: exampleUser
console.log(isLoggedIn); // Output: true

// Removing data from localStorage
localStorage.removeItem('isLoggedIn');
```

This code snippet demonstrates how to store, retrieve, and remove data using the **`localStorage`** object from the Web Storage API.
PAT Task 3
Published: 2024-03-21 22:58:15

## Differentiate Functional and Non-Functional Testing


**Functional Testing**
	Functional testing is the testing method which identifies the application is working with all features as requested by client. It compares actual result with expected result hence finds if any malfunctioning feature or missing feature.

_for example_
Unit testing, integration testing, Regression testing, User Acceptance testing, Boundary Value testing, Decision Table testing etc.,

**Non-Functional Testing**
	Non-Functional testing is the testing method to identifies the performance of the application such as stability in various user load condition. It used to evaluate the experience of the user with the developed application.

_for example_
Performance testing, Load testing, Volume testing, Security testing etc.,

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qth8nc4zhzjxhov9qghs.jpg)
Frequency Counter Technique in C#
Tags: csharp, datastructures, programming
Published: 2024-03-21 22:08:30

## How to identify it? 
- Querying item presence in A against B.
- Prioritizing linear time complexity (O(n)) over quadratic (O(n²)), avoiding nested loops.

---

## TO ACCOMPLISH THIS OBJECTIVE...
- Utilize individual O(n) loops instead of nested loops for efficiency.
- Employ object mapping to facilitate element comparison.
- Establish keys as elements and values as their respective frequencies.

```
---Pseudocode
            A) Iterate through the array 
            B) Grab the value of each item in the array and set it to variable key 
            C) If key exists as a key in myObject... 
            D) ... increment it by 1 
            E) If not (key doesn't exist in myObject)... 
            F) ... create key in myObject and set it equal to 1
```

---

## FREQUENCY COUNTER IN ACTION
**Problem:** Write a function frequencyCounter, which accepts two arrays. The function should return true if every value in the array has its corresponding value squared in the second array. The frequency values must be the same.

Code to solve this problem:
![Frequency Counter Ex1](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/v404c873zkiiti3kp9vj.png)

Mapping each list's elements to their frequencies in separate dictionaries enables efficient comparison, ensuring a streamlined process. **This technique sidesteps nested loops**, resulting in a time complexity of O(n) and superior efficiency compared to alternative methods.

With two individual loops, each element in the arrays is processed separately, allowing for direct comparison and frequency counting. Nested loops, on the other hand, would lead to redundant comparisons between every pair of elements, resulting in unnecessary computations.

---

##ADDITIONAL EXERCISES:
- [Valid Anagram](https://leetcode.com/problems/valid-anagram/)
- [Are There Duplicates?](https://walkccc.me/CS/JavaScript/01/frequencyCounters/#:~:text=true%3B%0A%7D%3B-,areThereDuplicates(...args),-%C2%B6)
- [Same Frequency](https://onecompiler.com/posts/4248c2n9u/frequency-counter-write-a-function-called-samefrequency-given-two-positive-integers-find-out-if-the-two-numbers-have-the-same-frequency-of-digits)
Stripe connect - holding payment
Published: 2024-03-21 21:59:45

Hello Stripe Dev Community! I have the following question:

We use Stripe Connect (Express Account). Our payment process is like this: Customer pays, payment gets on hold, service provider provides his service, after confirmation through the customer, the payment gets released.

Now our questions: 1) How long can we hold the payment? 2) Where does the money "sit" until we release the payment? 3) Do we have somehow access / influence to this money during the process? (because this can mean legal issues)

Thank you in advance!
My Analytics Engineering Career Path
Tags: analyticsengineering, analytics, dbtcore, ubuntu
Published: 2024-03-21 21:47:36

Hi there👋🏼, thank you for taking time out to read my blog post, actually I will be documenting my Analytics Engineering career journey for accountability purposes. I will be documenting every software installation and project.

I am currently learning Analytics Engineering at Udemy Bootcamp [Click here to view course](https://www.udemy.com/course/analytics-engineering-bootcamp).

At the bootcamp I learnt how to set up and Install DBT core with Command Prompt and Ubuntu Terminal on my local machine and I will share the process with you.

I am using Command Prompt to create a Python Virtual Environment, so I can have access to the DBT folder on my local machine. I am only going to run it with Ubuntu.

What is DBT? DBT is a data transformation tool mostly used by Analytics Engineer to transform data in a database for analytical purposes.

```
# Creating new virtual environment with Command Line
python -m venv dbt-env
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/9cl3qp7jbrxchyrbvkzd.jpg)

```
# Open the virtual environment with Ubuntu
cd /mnt/c/Users/USER/dbt-env
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/phdjftvvolegvbtmg191.jpg)

```
# Activate the virtual environment
source Scripts/activate
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zknk44zsgk5f0kzh8b0f.jpg)

```
# Download dbt from git
git clone https://github.com/dbt-labs/dbt-core.git
```
I decided to download DBT core using git. After installing from git, Open the dbt Core folder.

```
# Opening the DBT-Core Folder after Downloading from git
cd dbt-core
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/lk60l273uris5i5un4cx.jpg)

```
# Install the Requirments txt file
python3 -m pip install -r requirements.txt
```
You can also Install plugins for database, so I installed plugins for BigQuery and Postgres

```
# Install plugins for dbt (Bigquery)
git clone https://github.com/dbt-labs/dbt-bigquery.git
```
After installing open the plugin folder

```
# Open the BigQuery Folder 
cd dbt-bigquery
```

```
# Install the BigQuery Requirement File
python3 -m pip install -e .
```
You can repeat the same process for Postgres etc.

You can verify if DBT was successfully installed by using

```
dbt --version
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0jjqk5e0o39i66rqe1i8.jpg)

You can create a dbt project with the following code.

```
dbt init project_name
```
Thanks for following!!! Happy DBT learning
Resolve Installing psych 5.1.2 with native extensions Gem::Ext::BuildError
Tags: rails
Published: 2024-03-21 21:14:00

---
title: Resolve Installing psych 5.1.2 with native extensions Gem::Ext::BuildError
published: true
description: Resolve Ruby & Rails Rails Gem Error
tags: 
  - rails

# cover_image: https://direct_url_to_image.jpg
# published_at: 2024-03-19 13:59 +0000
---
If your are getting below error in rails 
```
Installing psych 5.1.2 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /tmp/bundler20240322-47887-3hyqrfpsych-5.1.2/gems/psych-5.1.2/ext/psych
/usr/bin/ruby3.0 -I /usr/lib/ruby/vendor_ruby -r ./siteconf20240322-47887-mbz5v.rb extconf.rb
checking for yaml.h... no
yaml.h not found
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.
```

Solutions is:
```bash
sudo apt-get install -y libyaml-dev
```
Can I solve Advanced Problem- with GPT as a Software Engineer?
Tags: programming, ai, chatgpt, typescript
Published: 2024-03-21 20:59:03

## Introduction

Tackling intricate coding problems requires a detailed approach. This guide will walk you through a complex issue in TypeScript, demonstrating how to effectively communicate with GPT for advanced solutions.

## Step 1: Detail Your Complex Problem

Clearly describe the advanced issue you’re facing. For example:

“I’m working on a **TypeScript** project involving **asynchronous operations** with **Promises** and **async/await**. I’ve encountered a **type mismatch error** when trying to compile my code.”

## Step 2: Provide a Challenging Code Snippet

Share a complex code snippet that illustrates the problem:

```jsx

async function processFiles(files: string[]): Promise<void> {
	try {
		for (const file of files) {
			const content: string = await readFile(file);
			const processedContent: string = await processContent(content);
			await writeFile(file, processedContent);
		}
	} catch (error) {
		console.error(‘Error processing files:’, error);
	}
}

// Assume readFile and writeFile return Promises and processContent is an async function

```

## Step 3: Ask In-Depth Questions

Pose detailed questions to guide GPT towards the solution:

“Why am I receiving a type mismatch error when all functions involved return a Promise of type string?”

## Step 4: Explore GPT’s Expertise

GPT can assist with complex tasks, including:

- **Advanced Debugging**: “Can you help identify the cause of this type error in my async function?”
- **TypeScript Best Practices**: “What are some best practices for handling errors in asynchronous TypeScript code?”

## Step 5: Participate in a Detailed Dialogue

Be prepared for GPT to ask technical questions to clarify the issue:

GPT: “Are the `readFile` and `writeFile` functions properly typed to handle Promises?”
You: “Yes, they are typed as follows: `function readFile(path: string): Promise<string>`”

## In conclusion

By providing a detailed description, complex code examples, and engaging in a technical dialogue, you can harness GPT’s capabilities to solve sophisticated TypeScript problems.
Error while loading images in Oracle APEX application runtime
Tags: oracle, apex, images, errors
Published: 2024-03-21 20:46:58

Images Not load at APEX runtime using a REST web services
Engineerr1983
24 minutes ago

Actions
Hi, I'm using APEX 22.2 to build a Movies Watchlist Application using The Web site Database (The Movie Database (TMDB) (themoviedb.org)), To use a REST Web services to connect to the website database and brings movies from it to the APEX application..

The steps are listed in APEX online tutorials as in the picture below:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/35ae2qvqld8alj18f7x3.png)

The application contains a modal dialog page which contains 2 regions for popular and searched movies.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/72cb36pggw82s4csx04d.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ykth79a6mgml8o9z5ejh.png)

For each region, in the Attributes tab, and in (Media) section, the URL is (https://image.tmdb.org/t/p/w500&POSTER_PATH)


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kzlxu5b8mqjfpbr0alm6.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/velahq3nbdmbbso2judr.png)



But at runtime both regions (Popular / Searched) movies there are no pictures loaded to the page, there is just a small logo above the left side of the picture

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jaotdx4aognwd0p5c72i.png)


And when I try to open the picture and load it in a new page there is an error related to the (Media - > URL) I've put which was

(https://image.tmdb.org/t/p/w500&POSTER_PATH).
The error shown below.
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0qdw4x96auotjid3qy4j.png)

Is there any problem with the (Media - > URL) (https://image.tmdb.org/t/p/w500&POSTER_PATH)??

Thanks
Elevating Your Dev.to Presence with Grum: A Developer's Perspective
Published: 2024-03-21 20:13:25

As [developers](https://developer.android.com/), we know how important it is to reach our audience with compelling content and smart marketing techniques. I'm thrilled to discuss how Grum can improve your Dev to experience because of this.

Grum may help you develop your following on Instagram and is also a useful tool for improving your visibility on Dev.to and other sites. How to do it is as follows:

Content marketing: You may plan and automate the social media marketing of your Dev.to articles on sites like Instagram by using Grum's scheduling tools. By doing this, you can be sure that more people see your material and are sent to your Dev.to profile.

Engagement Tracking: [Grum's](https://grum.co/) analytical capabilities provide insightful information on how well your Dev.to promos are doing. Monitor indicators like as engagement levels and click-through rates to determine what your audience finds compelling and adjust your content strategy appropriately.

Building Community: With just one centralized dashboard, you can effortlessly monitor and reply to comments on your Dev.to articles thanks to Grum's comment management tools. By doing this, you may create a devoted following around your content and encourage meaningful engagement with your audience.

Content Collaboration: Working together with other developers or content producers on Dev.to is made simple by Grum's multi-account management features. To guarantee the success of your joint endeavors, schedule, monitor, and manage communication effectively.

own Branding: You may display your own brand on Dev.to and other platforms by using Grum's customisable capabilities. Grum offers customized messages and branded visuals to help you stand out and leave a lasting effect on your audience.