teleren/devto huggingface dataset:
Laravel linux installation error
Tags: laravel, webdev, beginners, programming
Published: 2023-05-12 08:11:13


I just started looking into laravel and during installation i get an error

> Reading package lists...
E: Problem executing scripts APT::Update::Post-Invoke 'rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true'
E: Sub-process returned an error code                                                                                                                                  
1 error occurred:                                                                                                                                                      
        * Status: The command '/bin/sh -c apt-get update     && apt-get install -y gnupg gosu curl ca-certificates zip unzip git supervisor sqlite3 libcap2-bin libpng-dev python2 dnsutils librsvg2-bin     && curl -sS 'https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x14aa40ec0831756756d7f66c4f4ea0aae5267a6c' | gpg --dearmor | tee /etc/apt/keyrings/ppa_ondrej_php.gpg > /dev/null     && echo "deb [signed-by=/etc/apt/keyrings/ppa_ondrej_php.gpg] https://ppa.launchpadcontent.net/ondrej/php/ubuntu jammy main" > /etc/apt/sources.list.d/ppa_ondrej_php.list     && apt-get update     && apt-get install -y php8.2-cli php8.2-dev        php8.2-pgsql php8.2-sqlite3 php8.2-gd php8.2-imagick        php8.2-curl        php8.2-imap php8.2-mysql php8.2-mbstring        php8.2-xml php8.2-zip php8.2-bcmath php8.2-soap        php8.2-intl php8.2-readline        php8.2-ldap        php8.2-msgpack php8.2-igbinary php8.2-redis php8.2-swoole        php8.2-memcached php8.2-pcov php8.2-xdebug     && curl -sLS https://getcomposer.org/installer | php -- --install-dir=/usr/bin/ --filename=composer     && curl -sLS https://deb.nodesource.com/setup_$NODE_VERSION.x | bash -     && apt-get install -y nodejs     && npm install -g npm     && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | tee /etc/apt/keyrings/yarn.gpg >/dev/null     && echo "deb [signed-by=/etc/apt/keyrings/yarn.gpg] https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list     && curl -sS https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor | tee /etc/apt/keyrings/pgdg.gpg >/dev/null     && echo "deb [signed-by=/etc/apt/keyrings/pgdg.gpg] http://apt.postgresql.org/pub/repos/apt jammy-pgdg main" > /etc/apt/sources.list.d/pgdg.list     && apt-get update     && apt-get install -y yarn     && apt-get install -y mysql-client     && apt-get install -y postgresql-client-$POSTGRES_VERSION     && apt-get -y autoremove     && apt-get clean     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*' returned a non-zero code: 100, Code: 100


Anyone with pointers on how to solve this error?
Understanding the Basics of Yarn: A Comprehensive Guide
Tags: webdev, javascript, node
Published: 2023-05-12 07:43:50

Yarn is a package manager for JavaScript that was developed by Facebook in collaboration with other companies. It serves as an alternative to npm (Node Package Manager) and offers several improvements and features.

## Here are some key features of Yarn:

**Performance:** Yarn focuses on speed and reliability. It employs a parallel and deterministic algorithm for package installation, which significantly speeds up the process. Yarn also caches packages to minimize redundant downloads, making subsequent installations faster.

**Offline Mode:** Yarn has an offline mode that allows developers to install and use packages without an internet connection. It leverages the locally cached packages, ensuring projects can be developed and built offline.

Deterministic Dependency Resolution: Yarn uses a lockfile (yarn.lock) to lock the versions of dependencies, ensuring consistent installations across different environments. This prevents the problem of dependency version mismatch and guarantees that the same package versions are installed on different machines.

**Workspaces: **Yarn supports workspaces, which enable developers to manage multiple packages within a single codebase. Workspaces provide a convenient way to handle interdependent projects and share dependencies between them.

**Improved Security:** Yarn includes built-in security features, such as checksum verification of downloaded packages, to ensure package integrity. It also provides vulnerability scanning and alerts for known security issues in dependencies.

Migration from npm: Yarn aims to be compatible with npm. It can utilize existing package.json and node_modules directories from npm projects, making it easy to switch to Yarn without any major changes.

To use Yarn, you need to install it globally on your machine. Once installed, you can initialize a new project using yarn init and manage dependencies by running commands like yarn add, yarn remove, and yarn upgrade. Yarn reads the project's package.json file to determine the required dependencies and versions.

Yarn has gained popularity among JavaScript developers due to its performance improvements and additional features. However, it's worth noting that npm remains a widely used package manager, and the choice between npm and Yarn ultimately depends on individual preferences and project requirements.
How to close a MySQL connection in Node js?
Tags: node, sql, webdev, programming
Published: 2023-05-12 07:38:22

In Node.js, to close a MySQL connection, you need to use the appropriate method provided by the **MySQL ****driver **you are using. 

**Here's an example using the popular mysql package:**

```
`const mysql = require('mysql');

// Create a MySQL connection
const connection = mysql.createConnection({
  host: 'your_host',
  user: 'your_user',
  password: 'your_password',
  database: 'your_database'
});

// Connect to the MySQL server
connection.connect((error) => {
  if (error) {
    console.error('Error connecting to MySQL:', error);
    return;
  }

  console.log('Connected to MySQL server.');

  // Perform database operations...

  // Close the MySQL connection
  connection.end((error) => {
    if (error) {
      console.error('Error closing MySQL connection:', error);
      return;
    }

    console.log('MySQL connection closed.');
  });
});
```
`
In the code above, we first create a MySQL connection using the **mysql.createConnection()** method, providing the necessary connection details. Then, we use the connection.connect() method to establish a connection to the MySQL server. Inside the callback function of connection.connect(), you can perform your desired database operations.

To close the connection, we call connection.end() and provide a callback function. Inside the callback, you can handle any errors that may occur during the closing process. If successful, the callback will be executed, indicating that the MySQL connection has been closed.

Make sure to replace 'your_host', 'your_user', 'your_password', and 'your_database' with your actual MySQL connection details.

Note that there are other MySQL libraries available for Node.js, such as mysql2 and knex, which may have slightly different syntax for closing connections. Always refer to the specific documentation of the library you are using for the most accurate instructions.
5 Essential Tips for Junior Developers: Advice I Wish I Knew When I Started
Tags: newbie, discuss, codenewbie, developers
Published: 2023-05-12 07:37:40


I wish I knew these advices when I started as a Junior developer 😮🙌 

Here are, 5 advices that a junior developer should inherit 🙂💯


As a fresher or junior developer struggle in making decisions or be confident on what we do.

Follow this advice given by my Seniors that you can inherit if you are a beginner:



1 Don't be afraid to ask questions: 

- It's better to ask and clarify something you don't understand than to struggle on your own and potentially make mistakes.


2 Learn to debug: 

- Debugging skills are essential for any developer. Practice using debugging tools and techniques to help you identify and fix issues in your code.


3 Write clean, organized code: 

- Good coding practices, such as using clear and descriptive names for variables and functions and using proper indentation, will make your code easier to read and maintain.


4 Learn how to use version control: 

- Version control systems, such as Git, are essential for tracking changes to your code and collaborating with others. Make sure to learn how to use them effectively.


5 Focus on learning the fundamentals: 

- It's easy to get caught up in learning the latest technologies, but it's important to have a strong foundation in the fundamentals of computer science and programming. 

- Make sure to spend time learning core concepts such as algorithms, data structures, and software design.


Kindly share the advice you wish you knew when you started as a junior software developer in the comment section.
👇👇👇
Crunching Numbers with Python: A Simple Mortgage Calculator
Tags: python, beginners
Published: 2023-05-12 07:18:08


## Introduction
In today's fast-paced world, making informed financial decisions is key to sound economic health. One such decision is understanding how much you'll be paying each month for your dream home. This is where a mortgage calculator can be a lifeline. But why rely on external tools when we can build one for ourselves? In this blog post, I'll explore how to create a simple mortgage calculator using Python.

![Mortgage Calculator Image](https://c.neevacdn.net/image/fetch/s--N7KcyN4Y--/https%3A//thumbs.dreamstime.com/b/mortgage-calculator-5297107.jpg?savepath=mortgage-calculator-5297107.jpg)

## The Code
Our mortgage calculator is quite straightforward. I define a function called `mortgage_calculator` that takes three parameters: principal amount, annual interest rate, and loan term in years. 

The function first calculates the monthly interest rate by dividing the annual rate by 12 and then converting it to a percentage. It also calculates the total number of payments over the loan term by multiplying the loan term by 12. 

The monthly mortgage payment is then calculated using the formula for an amortizing loan payment. The result is then returned by the function.

We also define a `main` function where we take inputs from the user for the principal amount, annual interest rate, and loan term. These inputs are then passed to our `mortgage_calculator` function, and the result is printed in a user-friendly format.

You can find the full code on my [GitHub](https://github.com/yannick3575/Project_codecademy_1.git).

## Conclusion
Building tools like a mortgage calculator not only helps us understand the intricacies of financial decisions but also demonstrates the practical utility of Python in real-world applications. This project is a testament to Python's power and versatility.
Monokle 2.1 - We love YAML so you don't have to
Tags: kubernetes, opensource, tooling
Published: 2023-05-12 07:05:12

We're thrilled to unveil Monokle Desktop v2.1, the latest major release of our open-source IDE that loves Kubernetes YAMLs more than any other. This release is focused on performance, stability and UX - showing even more love for

- k8s aware YAML editing with real-time validation, context-sensitive help, etc
- Interactive Kustomize and Helm-Chart dry-runs for debugging and validation
- Graph and dependency visualisation for your resources
- Cluster inspection, troubleshooting and validation
- And so much more that you would have stopped reading before getting this far anyway..

Head over to https://monokle.io or https://github.com/kubeshop/monokle to download and give it a try - read a more elaborate announcement at - https://monokle.io/blog/monokle-2-1-release - and give us your mostly unfiltered feedback on [Discord](https://discord.gg/6zupCZFQbe) - our plushies salute you!


![Monokle plushies at KubeCon contemplating their love for K8s YAMLs](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qhhkjn8io3cnec1sejnb.png)
Medusa(1/4) - The future of e-commerce?
Tags: webdev, javascript, react, opensource
Published: 2023-05-12 07:01:02

The world of e-commerce is quickly evolving and new technology is allowing developers to create experiences much greater than just a few years back. One of the more interesting solutions is Medusa which is the leading open source infrastructure in the open source space.

In this first part, I will do a quick introduction to Medusa and give my point of view on why I think Medusa is part of the future of e-commerce. In the following parts, I will go deeper into Medusa’s offering, its commerce modules, and its Admin page.

### The basics of Medusa

Medusa's offering enables businesses and developers to create customized commerce experiences quickly and reliably through their open source commerce infrastructure. It handles all the core backend elements of commerce, such as carts, orders, customers, products etc.

In a rapidly evolving digital commerce landscape, Medusa is built for developer teams and companies that want to invest in their commerce setup. In turn, they offer a scalable foundation that they can easily take ownership of as they grow.

### Medusa’s modular approach

The core of Medusa’s offering is its modular approach to building commerce applications. By unlocking the core commerce logic within platforms, Medusa's open-source npm packages allow developers to install and modify commerce modules without accruing large amounts of technical debt. 

This approach allows for a more flexible and extensible commerce stack, enabling developers to build bespoke commerce experiences while getting a great starting point using Medusa’s infrastructure. 

### Who is Medusa for?

Medusa's approach may not be for mom-and-pop shops as it does require developer resources to get started. Instead, it could very well be the solution for brands and companies that want to create new, innovative commerce experiences and believe that having control over their commerce stack will give them an edge. 

For businesses that value ownership over their tech stack, Medusa's modular approach provides a significant advantage over traditional, monolithic platforms, as its modular architecture caters much better to customization and scaleability.

To understand more about their offering, visit the next article in this series:
Describe Coding in 3 Words
Tags: discuss, beginners, codenewbie
Published: 2023-05-12 07:00:00

If you had to describe coding using only three words, what would they be?

---
Follow the [CodeNewbie Org](https://dev.to/codenewbieteam) and [#codenewbie](https://dev.to/t/codenewbie) for more awesome discussions and online camaraderie!


*{% embed* [https://dev.to/codenewbieteam](https://dev.to/codenewbieteam) %}*
Team or Solo: Which Path Leads to Project Success?
Tags: discuss
Published: 2023-05-12 07:00:00

Let's weigh the pros and cons: working on a project with a large team versus flying solo as a developer. Both approaches have their own unique perks and challenges. So, if you had to choose, would you rather work on a project with a lot of collaboration or go it alone? 

---
Follow the DEVteam for more awesome discussions and online camaraderie!

{% embed [https://dev.to/devteam](https://dev.to/devteam) %}
Konfigurasi SMTP Server
Tags: pens, smtp
Published: 2023-05-12 06:43:02

**SMTP** merupakan singkatan dari Simple Mail Transfer Protokol berfungsi sebagai protokol yang memfasilitasi dalam hal transfer <u>e-mail</u>. 

SMTP menggunakan 3 port, Port 25 digunakan untuk non SSL, port 587 untuk TLS dan 465 untuk SSL. Namun oleh sebagian ISP, port 25 telah ditutup karena dianggap berbahaya dengan tidak adanya encryption module yang digunakan.

Berikut cara konfigurasi SMTP Server pada Sistem Operasi Linux:
1. Menginstall package Postfix 


![Install Package](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oxjf71hkqcoptznokxx5.png)

2. Mengisi nama email sistem

Fase ini akan dijalankan secara otomatis sehingga user akan diminta mengisi email system name.

![System Email Name](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ihhbu984f8e5p9u27zoh.png)

3. Lalu konfigurasi file **main.cf** seperti berikut ini

![main.cf](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zyiwl4oumm836dxfxfy7.png)

Setelah melakukan konfigurasi simpan perubahan, lalu restart konfigurasi postfix nya

![dpkg](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/45w2hvw0vou72dlhbjof.png)

4. Kemudian tambah CNAME untuk email pada file db-forward

![tambah CNAME](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/le5012f6s5rgzv6j9joj.png)


## Membuat Contoh Mail

Semua package telah terinstall selanjutnya konfigurasi pada apache2 nya.

Kami mencoba membuat webmail nya, kami menggunakan webmail opensource dari netflix

![wget webmail](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/r6q05of0m42gfekfj64q.png)

Kemudian tambahkan juga konfigurasi apache 2 di site-availables, 


![konfigutasi apache](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fd55u40bfiibavnymn45.png)

Terakhir **restart** service apache2 agar bisa menggunakan Web Mail.
lists in python hackerrank solution
Tags: python, hackerrank, list
Published: 2023-05-12 05:40:06

For Explanation watch the video
{% embed https://youtu.be/ta2d0PObArI %}

code :: 

```
if __name__ == '__main__':
    N = int(input())
    L = []
    for i in range(N):
        cmd = input().split()
        if cmd[0]=='insert':
            L.insert(int(cmd[1]),int(cmd[2]))
        elif cmd[0]=='print':
            print(L)
        elif cmd[0]=='remove':
            L.remove(int(cmd[1]))
        elif cmd[0]=='append':
            L.append(int(cmd[1]))
        elif cmd[0]=='sort':
            L.sort()
        elif cmd[0]=='pop':
            L.pop()
        elif cmd[0]=='reverse':
            L.reverse()
```
Seek and Destroy Algorithm
Tags: javascript, beginners, codenewbie, algorithms
Published: 2023-05-12 05:30:56


### DESCRIPTION:

You will be provided with an initial array (the first argument in the destroyer function), followed by one or more arguments. Remove all elements from the initial array that are of the same value as these arguments.
`hint : use arguments object
`

> **arguments object** from [W3schools]
(https://www.w3schools.com/js/js_function_parameters.asp)

> JavaScript functions have a built-in object called the arguments object.
> The argument object contains an array of the arguments used when the function was called (invoked).
> This way you can simply use a function to find (for instance) the highest value in a list of numbers:

### Examples

```js
destroyer(["tree", "hamburger", 53], "tree", 53)
// should return ["hamburger"].

destroyer([2, 3, 2, 3], 2, 3) 
// should return [].
```

### My approach for solving this problem:

> 1- first read about arguments object (I think it's Ok to use google and learn new Thing I'm not an expert).

> 2- I need to sprite the arguments into 2 arrays,
 one for parameter Arr and other for the rest Arguments.

> 3- filter the Arr and return item if it's not includes into OtherArguments.


### My solution:

```js
function destroyer(arr) {
  let OtherArguments = Object.values(arguments).splice(1)

  return arr.filter(item=> !OtherArguments.includes(item))
}

destroyer([1, 2, 3, 1, 2, 3], 2, 3);
```

### Other approach for solving this problem:

> 1- you don't need arguments object.

> 2- I need to sprite the arguments into 2 arrays,
     one for parameter Arr and other for the rest Arguments.

> 3- we can use (...) rest parameter insted of Object.values.

> 4- filter the Arr and return item if it's not includes into OtherArguments.

### Other solution:

```js
function destroyer(arr,...OtherArguments) {

    return arr.filter(item=> !OtherArguments.includes(item))

}
destroyer([1, 2, 3, 1, 2, 3], 2, 3)
```

>  Any tips or edit are most welcome. share it with me on the comments. Thanks for being here!

#### Follow _Muhmmad Awd_ on 
<a href="https://www.linkedin.com/in/muhmmadawd"><img src="https://img.shields.io/badge/LinkedIn-0077B5?style=for-the-badge&logo=linkedin&logoColor=white"/></a>

<a href="https://github.com/MuhmmadAwd"><img src="https://img.shields.io/badge/GitHub-100000?style=for-the-badge&logo=github&logoColor=white"/></a>

If you have any questions or feedback, please feel free to contact me at 
<a href="muhmmad.awd@gmail.com"><img src="https://img.shields.io/badge/Gmail-D14836?style=for-the-badge&logo=gmail&logoColor=white"/></a>
Balancing Full-Time Work, A Family & A Full-Stack Web Development Bootcamp: My First 3 Months
Tags: webdev, beginners
Published: 2023-05-12 05:26:19

Introduction:
Embarking on a full-stack web development bootcamp is an exciting journey, but it can also be challenging when you have to juggle it with a full-time job & family. In this blog, I'll share my personal experience of managing all these commitments during the first three months of a full-stack web development bootcamp. From the highs and lows to the strategies I adopted, I hope my story will inspire and provide insights for those who find themselves in a similar situation.

Month 1: The Initial Struggles
As the bootcamp began, I quickly realized that maintaining a consistent schedule was going to be tough when having a wife and child can be unpredictable. My work schedule was consistent which was nice, I planned to spend at least an hour a day after work doing school work, and used my weekends to really catch up when needed. This seemed to work well for me.

Month 2: Getting the Hang of Things
Going into the second month of this bootcamp I started to feel I had a groove. Small speed bumps did fall in the way when it came to weekend long family commitments but nothing a couple days of grinding school work didn't help to get me caught up. By this point I am starting to realize that I am actually learning some things. I know what some co-workers are referring to when they start starting in dev-talk. It's a good feeling.

Month 3: Pushing Towards the End of Phase 1
By this point we are hitting present time. Working on phase 1 project has been something I never thought I would be able to do, but after three months of learning, struggling & having successes I have been able to put everything together to create a web app that works. It may not be the prettiest but I believe this is just something that comes with time & practice. As I head into phase 2 I can just think of what is to come and all that will be learned.

Conclusion:
If you have been thinking about starting a full-stack bootcamp but are afraid you will not have the time due to a full-time job & family, then I hope this blog has helped. If you are going through a bootcamp now & are thinking you cannot finish, fret not, you can do it! Just try to set at least an hour aside a day to work on it and soon you'll be typing code without even realizing. Coming up I am ready to learn Ruby and starting creating servers for the backend!