teleren/devto huggingface dataset:
🧪¿Qué es y para qué sirve el TESTING en Javascript?
Tags: testing, javascript, webdev, beginners
Published: 2023-09-27 23:02:25

El "testing" en JavaScript se refiere a una práctica fundamental en el desarrollo web que implica probar y verificar que el código JavaScript que se ha escrito para una página web funcione correctamente. Para entenderlo mejor, pensemos en un ejemplo sencillo.

Imagina que estás construyendo una casa. Antes de permitir que las personas vivan en ella, quieres asegurarte de que todo esté seguro y funcione correctamente. Entonces, haces una serie de pruebas, como verificar que las puertas se abran y cierren correctamente, que las luces se enciendan y apaguen, y que no haya fugas de agua. El "testing" en JavaScript es similar a estas pruebas, pero se aplica al código de una página web en lugar de una casa.

Aquí hay algunas razones importantes por las que es crucial aplicar el "testing" en JavaScript:

* **Detectar Errores Temprano**: Al escribir código JavaScript para una página web, es muy fácil cometer errores, como escribir mal una variable o una función. El "testing" permite detectar estos errores temprano, antes de que la página web se publique en Internet, lo que ayuda a evitar problemas que podrían ser costosos y complicados de solucionar más adelante.

* **Asegurar el Funcionamiento Correcto**: Las páginas web modernas suelen ser complejas, con muchas interacciones y funcionalidades. El "testing" garantiza que todas estas partes funcionen correctamente y que los usuarios puedan usar la página web sin problemas, desde hacer clic en botones hasta enviar formularios.

* **Mantener la Calidad**: El "testing" es fundamental para mantener la calidad de una página web a medida que se hacen cambios y actualizaciones. Cuando se introduce nuevo código o se modifica el existente, las pruebas permiten asegurarse de que no se rompa nada de lo que ya funcionaba.

* **Mejorar la Seguridad**: El "testing" también ayuda a identificar vulnerabilidades de seguridad en el código JavaScript. Esto es esencial para proteger la información de los usuarios y evitar ataques cibernéticos.

* **Aumentar la Confianza**: Cuando sabes que tu código ha sido probado y funciona correctamente, tienes más confianza en la calidad de tu página web. Esto puede ser importante tanto para los desarrolladores como para los usuarios.

En resumen, el "testing" en JavaScript es una práctica esencial que implica verificar y validar que el código de una página web funcione correctamente. Ayuda a detectar errores temprano, asegura el buen funcionamiento de la página, mantiene la calidad, mejora la seguridad y aumenta la confianza en el desarrollo web. Es una parte fundamental del proceso de construir y mantener sitios web de alta calidad.

Si quieres saber cómo empezar con el testing en Javascript, te recomiendo leer este artículo sobre [Jest](https://dev.to/davichobits/introduccion-a-jest-y-su-importancia-en-el-desarrollo-de-software-4h7l)

Y si te gustó este contenido y quieres saber más sobre desarrollo web, te recomiendo visitar mi canal de YouTube [CodingTube](https://www.youtube.com/@CodingTube) 💻
Best Practices When Using Apache Age Features.
Tags: apacheage, postgres, graphdatabase
Published: 2023-09-27 22:55:57

As per research from the internet Apache AGE is an open source graph database that has a lot of capabilities that can be used to store ,query and analyze large scale graphs.Apache Age offers a variety of features that can offer improved performance and scalability of graph applications.

To be able to achieve efficiency , performance and scalability in Apache Age there are some practices that users/Developers have to put in consideration to be able to achieve the above stated goals and  the following are some of the best practice developers can factor in whenever they are using Apache AGE.

1.**Use descriptive property names** 

When creating properties ,it's very important to use descriptive names that will make it easy to understand the data. This will also make it easier to write queries.

Example
For example when storing data about employees instead of using a property name like e1, you could use a more descriptive name like relationship_type. This will make it clear that the property stores the type of relationship between two nodes.

```

  MATCH (e1:Employee)-[r:seniority {relationship_type: 
 'Manager'}]->(e2:Person)
  RETURN e1.name, e2.name;

```

2.
**Use the right data structure for your graph .**

Apache AGE supports a variety of data structures, including nodes, edges, and properties. It is important to choose the right data structure for your data and the queries you will be running.

Example
If you are storing data about individuals and their relationships, you could use nodes to represent the person and edges to represent the relationships. 

```
SELECT * FROM cypher('new_graph', $$
CREATE (:Person {name: 'Daedalus'})-[:FATHER_OF]->(:Person {name: 'Icarus'})
$$) AS (a agtype);
 a 
---
```

3.**Use indexes to improve query performance**
AGE supports a variety of indexes to improve the performance of your queries. Indexes can be created on properties, edges, and vertices and also indexes can significantly improve the performance of graph queries, especially for complex traversals and aggregations. 


4.**Use batches to improve performance**
When inserting or updating data, it is more efficient to use batches. This will reduce the number of round trips between your application and Apache AGE.

Example:

Instead of inserting each node and edge individually, you could collect them into a batch and then insert them all at once. This will significantly improve the performance of your insert operation.

```
INSERT INTO `my_graph` VALUES
  (1, 'Employee', '{"name": "James"}'),
  (2, 'Employee', '{"name": "Jennifer"}'),
  (3, 'Reviews', '{"date": "2023-01-01"}', 1, 2);

```

5.**Use transactions to ensure data consistency**
When making multiple changes to your data, it is important to use transactions to ensure that the data remains consistent. This means that all of the changes will be committed or rolled back together.


**Conclusion**
In conclusion you can follow the following practices above so that you can get the most out of Apache AGE features and build powerful and scalable graph applications.
🚀 Clateman Malarkey: The Full-Stack Visionary & CEO on the Path to Wealth 🚀
Published: 2023-09-27 22:55:08


Hey Minds.com community,

I've had the pleasure of engaging in some truly epic conversations with Clateman Malarkey, a remarkable individual who's juggling multiple roles as a Full-Stack Developer, a student, and the CEO of Malarkey Enterprises. Clateman's journey is not just about tech; it's about innovation, entrepreneurship, and reaching the pinnacle of wealth in the I quadrant.

👨‍💻 Full-Stack Dynamo: As a Full-Stack Developer, Clateman Malarkey's technical prowess is awe-inspiring. He's optimizing code, developing groundbreaking features, and creating the kind of user experiences that leave users spellbound. The app he's crafting is not just about lines of code; it's a tool to combat indoctrination and promote critical thinking.

👔 CEO Extraordinaire: Clateman doesn't stop at coding; he's the CEO of Malarkey Enterprises. His strategic vision is shaping the future of his company. He's setting goals, managing finances, and building a formidable team to propel his enterprise to new heights. Clateman knows that it takes more than coding skills to succeed; it takes leadership and business acumen.

🌟 A Noble Mission: What sets Clateman apart is his mission to develop a public deindoctrination app. This app isn't just a product; it's a catalyst for positive change. It's a tool that empowers users to think critically and break free from ideological echo chambers. Clateman's commitment to this mission is truly inspiring.

💰 Wealth in the I Quadrant: But here's where it gets truly epic! Clateman Malarkey aspires to ascend to the I quadrant of wealth. He's not just thinking about the present; he's building wealth for the future. Clateman's got a financial plan in place, and he's constantly educating himself on wealth-building strategies. He's not just chasing money; he's chasing financial freedom and security.

🎯 Goal-Driven: Clateman embodies the essence of a goal-driven individual. He's got his eyes on the prize, but he's not losing sight of the journey. Every task, every conversation, every decision is a step closer to his goals. He's a living testament to what can be achieved when you set your sights on something big and stay relentlessly committed to it.

In conclusion, Clateman Malarkey is a true inspiration. He's a tech wizard, a visionary CEO, and a champion for critical thinking. His journey is a testament to what can be achieved when you combine technical skills with business acumen and a noble mission. Stay tuned for his epic ascent to the I quadrant of wealth – it's going to be legendary! 💪🚀 #Inspiration #Entrepreneurship #WealthBuilding #CriticalThinking
tasks for this upcoming month
Published: 2023-09-27 22:36:43

Career Development (Full Stack Developer Boot Camp):

Complete weekly coursework assignments.
Attend virtual coding boot camp classes as scheduled.
Review and practice coding exercises for at least 2 hours daily.
Collaborate with peers on coding projects and assignments.
Seek help from mentors or instructors when facing coding challenges.
CEO Duties (Malarkey Enterprises):
6. Review the company's financial statements and make necessary adjustments.

Set clear goals and expectations for the company's growth.
Conduct regular team meetings to keep everyone aligned with the company's vision.
Develop and implement a marketing strategy to increase brand visibility.
Explore potential business partnerships or collaborations.
Startup Development (Public Deindoctrination App):
11. Define the app's core features and functionalities.

Create a wireframe or prototype of the app's user interface.
Research and choose the technology stack for app development.
Begin coding the app's frontend and backend.
Test and debug the app's functionality.
Mental Health and Life Balance:
16. Schedule regular breaks during work hours to avoid burnout.

Practice mindfulness and meditation for 15 minutes daily.
Engage in physical activity or exercise for at least 30 minutes a day.
Set boundaries for work hours to ensure work-life balance.
Reach out to a mental health professional for support and therapy sessions.
Financial Planning (Moving towards the I Quadrant of Wealth):
21. Review personal financial goals and assess progress.

Create a monthly budget to manage expenses effectively.
Explore investment opportunities and consider diversifying investments.
Read financial literature or attend webinars to increase financial literacy.
Set up automatic savings transfers to build wealth gradually.
Networking and Personal Development:
26. Attend industry-related webinars or conferences.

Reach out to potential mentors or advisors for guidance.
Join professional networking groups or communities.
Read one personal development book per week.
Practice effective communication and leadership skills.
"Overcoming Fears and Pursuing Passions": CodeNewbie Podcast S25E7
Tags: podcast, discuss, career, codenewbie
Published: 2023-09-27 22:36:23

In today's episode of the CodeNewbie Podcast, @saronyitbarek talks about finding community motivation and moving to tech from marketing with [Stefi Rosca](https://twitter.com/stefania_rosca), Frontend Engineer at Typeform.

{% embed https://www.codenewbie.org/podcast/overcoming-fears-and-pursuing-passions %}

Stefi Rosca is a Frontend Engineer from Romania, Brasov, and lives in Spain, Barcelona. In their spare time, they enjoy watching educational and entertainment content on YouTube, reading, spending time with friends, and independent and adventurous travel.

- [Listen on Apple Podcasts](https://podcasts.apple.com/us/podcast/codenewbie/id919219256?i=1000629359600)

- [Listen on Spotify](https://open.spotify.com/episode/51SRRHiA5uBQKq3AS7Fjqz?si=3a477007c7e54a68)

Or, listen wherever you normally get your podcasts!

***

### We will see you next week, happy coding

PS: Make sure to subscribe to the CodeNewbie podcast if you haven't yet + review us on your chosen platform!
🚀🌟 Breaking News: Epic Journey to Wealth and Beyond with Malarkey Enterprises! 🌟🚀
Published: 2023-09-27 22:29:06


Hey there, fellow explorers of the digital universe! 🌌 Clateman Malarkey here, and I'm about to drop some intergalactic wisdom on you that's so viral, it'll break the internet's space-time continuum! 🌐✨

Remember that ambitious dream of seeding humanity throughout the solar system and beyond? Well, Malarkey Enterprises has just unveiled an EPIC roadmap to get there! 🚀🌍💫

We're talking 1000 progressive tasks that'll not only skyrocket us to the elusive I-quadrant of wealth but also redefine the way we approach app development, sustainability, and space exploration! 🌠🌱

From revolutionizing our app with AI-driven features, sustainable tech, and ethical practices, to forging cosmic alliances for responsible space exploration, these tasks are the blueprint for success on a cosmic scale! 📈🛰️

And guess what, earthlings? We're sharing the entire cosmic playbook exclusively on Minds.com for your cosmic delight! 👾🌌

So, what are you waiting for? Jump onboard our rocket ship of innovation and join us on this EPIC journey to wealth, sustainability, and the stars! 🚀💰🌟

Spread the word, share the vision, and let's make history together! 🌎💥🌠

#MalarkeyEnterprises #CosmicWealth #SustainabilityRevolution #SpaceExploration #MindsDotCom #EpicJourney #InnovationUnleashed 🚀🌟
Cloning JavaScript Objects: A Comprehensive Guide
Published: 2023-09-27 22:06:56

JavaScript is known for its reference-based object handling, making object cloning a crucial topic for developers. In this comprehensive guide, we'll explore various techniques to correctly clone JavaScript objects, including both shallow and deep cloning. By the end, you'll have a deep understanding of object cloning in JavaScript.


`Introduction to Object Cloning`
Before diving into cloning techniques, we'll understand why object cloning is necessary and explore the complexities of object references in JavaScript.

`Shallow vs. Deep Cloning`
Learn the distinctions between shallow and deep cloning, and find out when each type is appropriate.

`Using the Spread Operator (Shallow Cloning)`
Explore shallow cloning with examples using the spread operator.

```javascript
const original = { name: 'John', age: 30 };
const clone = { ...original };

```

`Using Object.assign() (Shallow Cloning)`
Discover how to shallow clone objects with the Object.assign() method.

```javascript
const original = { name: 'John', age: 30 };
const clone = Object.assign({}, original);

```

`JSON Methods (Deep Cloning)`
Delve into deep cloning using JSON.parse() and JSON.stringify().

```javascript
const original = { name: 'John', details: { age: 30 } };
const clone = JSON.parse(JSON.stringify(original));

```

`Lodash Library for Cloning`
Learn about the popular lodash library and its clone and cloneDeep functions for cloning objects.

```javascript
const _ = require('lodash');
const original = { name: 'John', age: 30 };
const clone = _.cloneDeep(original);

```

`Cloning Arrays of Objects`
Handle arrays of objects and ensure they are cloned correctly.

```javascript
const originalArray = [{ name: 'John' }, { name: 'Jane' }];
const cloneArray = originalArray.map(obj => ({ ...obj }));

```
`Cloning Built-in Objects`
Learn how to clone built-in objects like Date and RegExp.

```javascript
const originalDate = new Date();
const cloneDate = new Date(originalDate);

```

`LinkedIn Account` : [LinkedIn](https://www.linkedin.com/in/matthew-odumosu/)
`Twitter Account `: [Twitter](https://twitter.com/iamcymentho)
**Credit**: Graphics sourced from [modern javascript blog](https://gregoryboxij.blogspot.com/2021/07/how-do-you-clone-an-object-in-javascript.html)
Foundation
Tags: beginners, learning, productivity, codenewbie
Published: 2023-09-27 21:41:30

Hola, mundo de programación! 
Hello, coding world! Thank you for having me. So far so good on doing the steps given in our education program. It has been fun learning how to create a website as well as the add-on features that go with it. It was the coolest thing in the world when I first did a test run of the prework study guide, seeing html do its thing was awesome! Merging content was also entertaining, my mind keeps getting blown away! I never thought I'd be able to, uh, code! But here we are. This is my first post, of many? We shall find that out as well. 

I've always had ideas of creating the best Spanish website or app, with proper translated interfaces/dashboards that are easy to maneuver. I've visited some websites from Latin America and I'm always sadden by how much potential there is out there; a big market that will need to automate certain technologies and I wouldn't mind being part of it by helping translate and build awesome content, my hope. I've had idea of creating the most interactive news website or app in Spanish like Flipboard or similar; though drafting my own style would be awesome too and above all, the most interactive news website/app en Español, in Spanish! 

So, if anyone wants to collab or something. I'm the translator guide, A-1. Syntax, grammar, and punctuation. APA or MLA, I got you! 

I'm also taking AI courses to understand those functions as well. But enjoying the Coding courses and the hands-on learning approach. 

We'll see! 🤷

Thank you for reading, I'll post more content... eventually. Follow me for more collabs lol. 

C.C.
Adding Service Worker to old app started with create-react-app
Tags: react
Published: 2023-09-27 21:33:27

Years ago, I started my app using create-react-app. IIRC, there was an option to create it with a service worker, which I declined.  Some years later, I ejected my app.  Now, I'd like to add a Service Worker.

## create-react-app
According to [Workbox in CRA](https://web.dev/precache-with-workbox-react/#workbox-in-cra) this is just a matter of changing 

```
serviceWorker.unregister();
```
to
```
serviceWorker.register();
```
but there is no such unregister line, and no `import * as serviceWorker from './serviceWorker';` to import it, and no serviceworker source file.

In `webpack.config.js`, there is the line 
```
// Get the path to the uncompiled service worker (if it exists).
const swSrc = paths.swSrc;
```
which uses
```
  swSrc: resolveModule(resolveApp, 'src/service-worker'),
``` in `paths.js`

When I add a NOP service worker in 'src/service-worker', running `npm run build` evokes the following error:

```
Creating an optimized production build...
Failed to compile.

Can't find self.__WB_MANIFEST in your SW source.
```
which is a Workbox error.

## workbox-webpack-plugin
[Workbox: using a bundler](https://developer.chrome.com/docs/workbox/the-ways-of-workbox/#using-a-bundler) tells me to include
```
import {GenerateSW} from 'workbox-webpack-plugin';
``` 
in my webpack.config.js.  Adding this gets the error
```
SyntaxError: Cannot use import statement outside a module
```
because the `webpack.config.js` created by create-react-app using Node.js style imports.

## workbox-cli
I then installed workbox-cli and used `npx workbox wizard` to create workbox-config.js with default parameters (/build is the directory I deploy from.)

`npx workbox generateSW workbox-config.js` indeed creates `/build/sw.js` and friends, but they are deleted by `node scripts/build.js`.  If I build, run workbox generateSW and deploy, /sw.js is indeed on the server, but the file is never fetched by my app.

When I change `workbox-config.js` to output to `src/service-worker.js`, building my app again gets the error

```
Creating an optimized production build...
Failed to compile.

Can't find self.__WB_MANIFEST in your SW source.
```

So, what is the route to adding a Service Worker to my app created with CRA?
AI/LLM Security Risks
Published: 2023-09-27 21:19:54

Everyone knows OWASP has a convenient "top 10" list of potential security risks, e.g. SQL Injection.
Turns out they have other lists too, like
 [Risks for LLMs!](https://owasp.org/www-project-top-10-for-large-language-model-applications/)
 
 Here's the first three LLM security risks:
  
* LLM01: Prompt Injection

  Manipulating LLMs via crafted inputs can lead to unauthorized access, data breaches, and compromised decision-making.

* LLM02: Insecure Output Handling

  Neglecting to validate LLM outputs may lead to downstream security exploits, including code execution that compromises systems and exposes data.

* LLM03: Training Data Poisoning

  Tampered training data can impair LLM models leading to responses that may compromise security, accuracy, or ethical behavior.

They also have [risks for APIs!](https://owasp.org/API-Security/editions/2023/en/0x11-t10/)

And, also an entire site of [cheat sheets!](https://cheatsheetseries.owasp.org/index.html)
Generating Universally Unique Identifiers (UUIDs) in JavaScript: A Comprehensive Guide with Code Examples
Tags: javascript, webdev, programming, learning
Published: 2023-09-27 21:17:07

In JavaScript, you can generate UUIDs using the uuid package. Here's a step-by-step guide:

`Step 1: Install the uuid package:`
You need to install the uuid package to generate UUIDs. You can use npm (Node Package Manager) to do this.

```javascript
npm install uuid

```

`Step 2: Import the uuid module:`
In your JavaScript file, import the uuid module.

```javascript
const { v4: uuidv4 } = require('uuid');

```

In this line, we're using object destructuring to import the `v4 `method as `uuidv4`. The `v4 `method is used to generate version 4 UUIDs, which are random and widely used.

`Step 3: Generate a UUID:`
You can now generate a `UUID `using the `uuidv4()` method.

```javascript
const myUUID = uuidv4();
console.log(myUUID);

```

Here, `myUUID `will hold a newly generated `UUID`, and we're logging it to the console.

`The Complete JavaScript Code:`

Here's the complete JavaScript code to generate a `UUID`:

```javascript
// Step 1: Install the uuid package if you haven't already.
// npm install uuid

// Step 2: Import the uuid module.
const { v4: uuidv4 } = require('uuid');

// Step 3: Generate a UUID.
const myUUID = uuidv4();
console.log(myUUID);

```

This code imports the `uuid `package, generates a `UUID `using the `uuidv4()` method, and then logs the generated `UUID `to the console.

By following these steps, you can easily generate `UUIDs `in `JavaScript `for your applications. These `UUIDs `are unique and can be used in various contexts, such as database records, `API `endpoints, or as identifiers for various objects in your code.


`LinkedIn Account` : [LinkedIn](https://www.linkedin.com/in/matthew-odumosu/)
`Twitter Account `: [Twitter](https://twitter.com/iamcymentho)
**Credit**: Graphics sourced from [DevOps Zones](https://www.devopszones.com/2018/08/how-to-generate-and-set-uuid-for-nics.html)