teleren/devto huggingface dataset:
Just Joined the Community
Published: 2023-04-22 09:07:33

I am so grateful and excited to be a part of this wonderful and amazing community. I am new to open source because I am a solitary person but I want to connect now to learn more from people all around because I believe people have stories to tell and a lot can be learnt from those stories as well as the creation of strong bonds that may last a lifetime. I am a web developer for now but I aim to be a chief technologist with mind boggling hacking skills. One of the elites. But for me to get there, I need to connect. If our interests align, I would be more than happy to make your acquaintance so we start working together because the future is now and there is no time for delay. I'm really happy to be part of this community once again. Let's do great things.  FOR GOD AND MAN
Difference between CNAME and A records
Tags: domainmapping, linux, cloud, devops
Published: 2023-04-22 08:25:32

As a Cloud practitioner  ☁️ , DevOps Engineer ♾  and the likes, you'll realize that whilst working on projects, you will experience the constant need for creating environments (test, deployment, sandbox, staging, production etc.), based on specific needs.

If you're like me, you're constantly working on projects that require the creation of environments with sub-domains or additional domains to serve your applications.

In this article, I'm going to break down the difference between these two types of DNS records, so you can choose the right one for your project. #FYI -> _**from my practical point of view.**_

" Let's dive right in 😊 😃 "

A CNAME (Canonical Name) record and an A (Address) record are both types of DNS (Domain Name System) records that are used to map a domain name to an IP address. However, they differ in their functionality and usage.

Let's start with A records. An A record is used to map a domain name to a specific IP address. For example, if you have a web server with an IP address of 192.0.2.1, you can create an A record that maps the domain name "example.com" to that IP address. This allows users to access your website by typing "example.com" into their web browser. 

Here's an image to help you visualize an A record:

![A Record preview](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0wx2sax5gbd1kl3ktvpt.png)

On the other hand, a CNAME record is used to map a domain name to another domain name. For example, if you have a web server with the domain name "www.example.com", you can create a CNAME record that maps "blog.example.com" to "www.example.com". This allows users to access your blog using the "blog.example.com" domain name instead of the "www.example.com" domain name.

The image below depicts how CNAME records work:


![CNAME Record preview](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/h9pb8wlq6fvvvvoim76l.png)

**PS:** It is important to note that using a CNAME record can cause additional DNS lookups, which can increase the response time for the user. Therefore, it is recommended to use A records whenever possible, and to use CNAME records only when necessary.

Now, a quick Recap:

An A record is used to map a domain name directly to an IP address. For example, let's say you have a web server with the IP address 192.0.2.1

A CNAME record is used to map a domain name to another domain name, which in turn is mapped to an IP address through an A record.

That's all for now, folks! Happy 😊  mapping!
How does Reinforcement learning relate to CNN and RNN?
Published: 2023-04-22 08:08:44


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/d6mrhw5ajjykyb3vmhje.png)
[[Image Source](https://s.yimg.com/ny/api/res/1.2/L1OX80x3gaRMlnO9CMpP0A--/YXBwaWQ9aGlnaGxhbmRlcjtoPTY2Ng--/https://o.aolcdn.com/images/dar/5845cadfecd996e0372f/4b6df289c1dc7d95e9ac554cc3b882a59e74491e/aHR0cDovL28uYW9sY2RuLmNvbS9oc3Mvc3RvcmFnZS9taWRhcy82YzZlNTIyNTNkODJhMTU1MjIyNDdmNjNhMGU3MmYxMS8yMDIxNTE1ODEvbWFyaW8uanBn)]

Reinforcement learning is when we teach a robot by giving it treats or stickers when it does a good job. The robot learns what to do to get the treats and tries to get as many treats as possible by doing the right things. It's like playing a game to learn how to make good choices.

CNN and RNN are like helpers for the robot. They help the robot see and understand things better. They can look at pictures and tell the robot what's in them, like a cat or a dog, or they can help the robot understand words and sentences. They are like tools to help the robot learn even more about the world around it.

Similar to how you may have seen models trained in Reinforcement learning play games like Mario or Flappy Bird to learn how to clear levels and earn as many achievement points or treats as possible.
Effortless Ruby on Rails Development on EC2 Server with VS Code Remote SSH
Tags: rails, developmenttools, aws
Published: 2023-04-22 07:06:59

If you are a Ruby on Rails developer, chances are you may need to work on projects hosted on an EC2 server on Amazon Web Services (AWS) or any other cloud platform. Managing code, running commands, and debugging remotely can be challenging, but with the VS Code Remote SSH feature, you can streamline your workflow and code efficiently on your EC2 server with the same convenience as your local setup.


Here’s a step-by-step example of how you can set up VS Code Remote SSH to work on a Ruby on Rails project hosted on an EC2 server:

**Prerequisites**
An EC2 instance running with Ruby, Rails, and other dependencies installed.
Install VSCode on your local system and the VSCode Remote Development extension pack from the Visual Studio Code Marketplace at https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.vscode-remote-extensionpack.
Connect to your EC2 server

In VS Code, press Ctrl+Shift+P (Cmd+Shift+P on macOS) to open the Command Palette, type “Remote-SSH: Connect to Host” and select it. Enter the SSH connection details of your EC2 server, including the hostname or IP address, the username (usually “ec2-user” for AWS EC2 instances), and the path to your private key file. Click “Connect” to establish an SSH connection to your EC2 server.
Install the necessary extensions: Once connected to your EC2 server, you may need to install additional VS Code extensions for Ruby and Rails development, such as Ruby, Rails, and Ruby Language Server. You can install these extensions from the Extensions Marketplace within VS Code.

**Working with VS Code Remote SSH**

**Editing files**: Open the files of your Ruby on Rails project on your EC2 server in VS Code, and start making edits. VS Code will automatically save the changes remotely.

**Running commands**: Open the integrated terminal in VS Code by clicking on “Terminal” in the top menu and selecting “New Terminal”. You can then run commands, such as running rails c to interact with the database.

**Debugging**: You can also debug your Ruby on Rails code on your EC2 server using VS Code Remote SSH. Set breakpoints, inspect variables, and step through the code, just like you would when debugging locally also such as restarting the Nginx service with “sudo nginx service restart” directly from your local VSCode instance.

**Benefits of VS Code Remote SSH for Ruby on Rails Development on EC2**

**Productivity**: Use familiar code editing features, shortcuts, and settings.
**Flexibility**: Works with Linux, macOS, or Windows, regardless of your local machine’s OS.
**Collaboration**: Enable real-time collaboration with other developers on remote machines.

**Conclusion**
VS Code Remote SSH is a powerful tool for seamless Ruby on Rails development on EC2 servers, enhancing productivity, ensuring security, offering flexibility, and enabling collaboration. Give it a try for convenient and efficient remote development with VS Code.
DAY-26-PANDAS
Published: 2023-04-22 07:49:11

```
import pandas as pd 
data = {"a":[1,2,3,4],
       "b":[4,5,6,7],
       "c":["sudh" , "krish","hitesh","navin"]}
df= pd.DataFrame(data)
df.set_index('a',inplace=True)
df = df.reset_index()

```

```
data = {"a":[1,2,3,4],
       "b":[4,5,6,7],
       "c":["sudh" , "krish","hitesh","navin"]}
df1 = pd.DataFrame(data,index = ['a','b','c','d'])
df1.reindex(['b','c','d','a'])

for i,j in df1.iterrows():
    print( j)

for col_name , column in df1.iteritems():
    print( col_name , column)

def test(x):
    return x.sum()
df1.apply(test,axis=0)
//a                      10
//b                      22
//c    sudhkrishhiteshnavin

df2 = df1[['a','b']]
df2.applymap(lambda x : x**2)
df.sort_values('c')
df.sort_index(ascending = False)

```

```
#Python Pandas - Window Functions
df4 = pd.DataFrame({'a' : [3,4,5,2,1,3,4,5,6]})
df4['a'].rolling(window=1).mean()
df4['a'].rolling(window=3).mean()

```

```
#Python Pandas - Date Functionality

date = pd.date_range(start='2023-04-23' , end = '2023-06-23')
df_date = pd.DataFrame({'date':date})
df7 = pd.DataFrame({"date" : ['2023-06-23' , '2023-06-22','2023-06-20']})
df7['updated_date'] = pd.to_datetime(df7['date'])
df7['year'] = df7['updated_date'].dt.year
```

```
#Python Pandas –Time Delta
pd.Timedelta(days= 1,hours = 5 ,minutes = 45)
dt = pd.to_datetime('2023-06-20')
td = pd.Timedelta(days = 1 )
dt+td
Timestamp('2023-06-21 00:00:00')

```

```
#Python Pandas - Categorical Data

data = ["sudh" , "krish" , "hitesh" , "navin","sudh" ,"sudh" ]
cat = pd.Categorical(data)
cat.value_counts()

```

```
#Python Pandas – Visualization
d = pd.Series([1,2,3,3,5,6,6,8])
d
d.plot()
df = pd.DataFrame({'a':[3,4,5,6,7],
                  'b':[4,5,6,7,8]})
df.plot(x= 'a',y='b')
df.plot.scatter(x= 'a',y='b')
d = pd.Series([1,2,3,3,5,6,6,8])
d
d.plot.pie()

```
Building a Secure Node.js Application: Best Practices and Tools
Tags: node, javascript, xss, helmet
Published: 2023-04-22 07:17:24


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tisorsgrb33wc7qd3se8.jpg)

## Node.js applications:

Node.js is a popular and powerful runtime environment for JavaScript that allows you to build scalable, high-performance applications. With Node.js, you can use JavaScript on both the client and server side, and take advantage of a large and growing ecosystem of modules and libraries.

Some common use cases for Node.js include building web servers, APIs, real-time applications, command line tools, and even desktop applications. Node.js is known for its event-driven, non-blocking I/O model, which makes it well-suited for handling large amounts of data and concurrent connections.

## Security in Node.js:

Security is a critical aspect of any application, and Node.js has several built-in features and third-party packages that can help you improve the security of your application. Here are some steps you can take to prepare a security package for Node.js:

1.  Use the latest version of Node.js: Make sure you are using the latest stable version of Node.js, as it will have the latest security updates and fixes.
    
2.  Use npm audit: Run the `npm audit` command to identify and fix any vulnerabilities in your application's dependencies.
    
3.  Use a security-focused middleware: Use a security-focused middleware like `helmet` to add security-related HTTP headers to your responses and prevent common security vulnerabilities like cross-site scripting (XSS) and clickjacking.
    
4.  Implement secure authentication: Implement secure authentication mechanisms like password hashing, two-factor authentication (2FA), and session management to protect user accounts from unauthorized access.
    
5.  Use HTTPS: Use HTTPS to encrypt data in transit and prevent man-in-the-middle attacks. You can use packages like `https` or `tls` to create secure connections.
    
6.  Handle input validation and sanitization: Validate and sanitize all input from users to prevent injection attacks like SQL injection and cross-site scripting (XSS).
    
7.  Use security-focused modules: Use security-focused modules like `crypto` for secure encryption and `jsonwebtoken` for secure token generation and verification.
    
8.  Conduct regular security audits: Conduct regular security audits and penetration testing to identify and fix any security vulnerabilities in your application.
    

These are just some steps you can take to prepare a security package for Node.js. It's important to stay up-to-date with the latest security best practices and keep your application secure to protect your users and data.
Coding Skills Not Found. Share Your Funniest Coding Failures 💻💥🙈
Tags: discuss, beginners, codenewbie
Published: 2023-04-22 07:00:00

We’ve all been there, right? (Please say yes.) Did you ever accidentally delete an entire file? Have a syntax error that took you hours to find? We want to hear it all! It’s cathartic. Let it out! Share your funny or embarrassing coding stories from your early days and let's have a laugh together. Who knows, your story may just help someone else avoid making the same mistake.

---

Follow the [CodeNewbie Org](https://dev.to/codenewbieteam) and [#codenewbie](https://dev.to/t/codenewbie) for more awesome discussions and online camaraderie!
P&S Cheatsheet for Distributions
Published: 2023-04-22 06:34:16

Hello, I am sharing with you my very own cheatsheet for quick revision for distributions. 

Share it with your friends with credits.

Also, Join the community of people learning probability and statistics on whatsapp: https://chat.whatsapp.com/IZk7DKKvH314vaIDNl2CEf

Download Link: https://github.com/Vaib215/RandomMe/raw/main/Probability_Stats/Dist_CS.pdf

![Cheatsheet](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0zc11g1cnpr0aipplj5o.jpg)
This week’s newsletter is out! (21-04-2023) - Foie Gras For Everybody
Tags: javascript, tech, webdev, discuss
Published: 2023-04-22 06:23:25

---
title: This week’s newsletter is out! (21-04-2023) - Foie Gras For Everybody
published: true
description: Another week of great javascript, tech and web development links.
tags: javascript, tech, webdev, discuss
---

Foie Gras For Everybody

https://markjgsmith.substack.com/p/mark-smiths-newsletter-22-04-2023

Would love to hear any comments and feedback you have.

[@markjgsmith](https://twitter.com/markjgsmith)
Rex's theory
Published: 2023-04-22 06:10:24

[https://www.bankfanz.com/kuda-bank-transfer-code/](https://www.bankfanz.com/kuda-bank-transfer-code/#utm_source=backlinks&utm_medium=search&utm_campaign=darry+ring+us&utm_content=Michelle)
https://plaza.rakuten.co.jp/kudabank2023/diary/202304210000/
https://peatix.com/user/16964341/
https://www.provenexpert.com/kuda-bank-transfer-code-2023/
https://www.producthunt.com/@kudabank021
https://www.divephotoguide.com/user/kudabanktransfer21
https://vocal.media/authors/rex-afamefula
https://www.lifeofpix.com/photographers/kudabanktramsfer21/
https://seedandspark.com/user/kuda-bank-transfer-code-1
https://rosalind.info/users/Kudabanktransfer21/
http://phillipsservices.net/UserProfile/tabid/43/userId/214787/Default.aspx
https://app.roll20.net/users/11888781/kuda-bank-transfer-c
https://speakerdeck.com/kudabanktransfer21
https://social.msdn.microsoft.com/Profile/Kuda%20bank%20transfer%20code%201
https://camp-fire.jp/profile/Kudabanktransfer21
https://plazapublica.cdmx.gob.mx/profiles/Kudabanktransfer21/activity
https://www.metal-archives.com/users/Kudabanktransfer21
https://storium.com/user/kudabanktransfer21
https://trabajo.merca20.com/author/kudabanktransfer21/
https://www.intensedebate.com/people/Kudabank21
https://www.mifare.net/support/forum/users/kudabanktransfer21/
https://pinshape.com/users/2618855-kuda21
http://foxsheets.com/UserProfile/tabid/57/userId/128965/Default.aspx
https://www.kompasiana.com/kudabank21
https://leanin.org/circles/kuda-bank-transfer-code-21
https://www.credly.com/users/kuda-bank-transfer-code/badges
https://www.myminifactory.com/users/Kudabanktransfer21
https://www.sqlservercentral.com/forums/user/kudabanktransfer21
https://www.longisland.com/profile/Kudabanktransfer21
https://guides.co/a/rex-afamefula
https://myanimelist.net/profile/Kudabank21
Build an Uber Clone with React: Join me on this Learning Journey
Tags: react, uberclone, buildtogether, reactlearners
Published: 2023-04-22 06:05:38

As a fresher, I know how overwhelming it can be to dive into a new technology. But by working together on a project like this, we can learn and gain practical experience building a real world application.

Our project will involve building a ride hailing application similar to uber, using react as our primary technology. 

This is an open invitation to anyone who are new to react and really want to learn because I am also the same.

So if you're interested in joining me on this journey to build an Uber Clone with React, don't hesitate to reach out. Let's learn, build, and grow together.
607. Sales Person leetcode solution
Tags: leetcode, sql, database, mysql
Published: 2023-04-22 05:32:44

for explanation watch video
{% embed https://youtu.be/_0BCTGZPfgI %}

```
# Write your MySQL query statement below
select name from SalesPerson where sales_id
not in (
    select sales_id from Orders where
    com_id = (select com_id from Company 
    where name="RED")
);
```
46 berufliches Vorwärtskommen: Hüte dich vor dem Neider.
Tags: deutsch, career, motivation, discuss
Published: 2023-04-22 04:34:00

Moin Moin,

erst der [Einflüsterer→](https://dev.to/amustafa16421/40-berufliches-vorwartskommen-schutze-dich-vor-dem-einflusterer-3g4g), dann der [Davonschleicher→](https://dev.to/amustafa16421/43-berufliches-vorwartskommen-hute-dich-vor-dem-davonschleicher-3b0a) und nun der Neider. Also demjenigen, der einem gefährlich werden kann, sobald einem etwas gutes widerfährt. Beispielsweise hat man Lob vom Vorgesetzten erhalten, eine Aufgabe hervorragend gemeistert, und schon legt der Neider los. 

Auch hier könnte man auf den Gedanken kommen, dass man den Neider erst mal ignorieren könne. Was hat das schon mit einem selbst zu tun? Jedoch gilt für die Gruppendynamik folgendes zu beachten: Aus einem Neider kann auch schnell ein [Einflüsterer→](https://dev.to/amustafa16421/40-berufliches-vorwartskommen-schutze-dich-vor-dem-einflusterer-3g4g) werden.

Ob das Dasein von Neidern auch etwas über die Unternehmenskultur aussagt, hängt, denke ich, stark davon ab, ob beispielsweise ein Vorgesetzter seinen Liebling hat und dies unverhohlen zur Schau stellt. Wenn da dann keiner einschreitet, dann ja. 

1) Kennst du selber Gegebenheiten bei denen sich der Neid eines anderen sich negativ auf dich oder einen Arbeitskollegen ausgewirkt hat?
2) Meinst du beobachten zu können, dass es Unternehmen gibt, die Neid unter Mitarbeitern fördern?

Beste Grüße,
Mustafa

Austausch mittels E-Mail: mustafa.kevin.dwenger@posteo.de
Betreff: Austausch
Make Your Commits Great Again with Trump Commit
Published: 2023-04-19 13:38:30

If you're a developer, you know the struggle of coming up with good commit messages for your code changes. But what if there was an easier way to make your commits great again? Enter Trump Commit, a global npm module that lets you commit code with a Trump-style message.


![Make your codebase great again](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0ml2c626gbvpwtvd2tnb.png)

## How It Works

Using Trump Commit is easy. Simply install the package globally using npm:


```bash
npm install -g trump-commit
``` 

Then, navigate to the directory containing the code you want to commit and run the following command:


```bash
trump-commit
``` 

This will generate a random message from a list of over 100 predefined messages and commit your code with that message.

If you want to specify a custom message, you can use the `-m` or `--message` option:


```bash 
trump-commit -m "Make code great again!" 
```
That's it! Trump Commit will add and commit all of your code changes with the greatest message possible.

## Why Use Trump Commit?

Not only does Trump Commit make it easy to come up with a commit message, it also injects some fun and humor into the often tedious task of committing code. Plus, with a list of over 100 predefined messages, you're sure to find a message that perfectly captures the essence of your code changes.

## Conclusion

If you're tired of struggling to come up with good commit messages, give Trump Commit a try. It's easy to install and use, and will make your commits great again. Plus, with its Trump-style messages, you'll never be bored while committing code again.

Check out my latest [Medium article](https://medium.com/@th3g3ntl3man/make-your-commits-great-again-with-trump-commit-7b5404510263) to learn more about Trump Commit and how to use it.

## Hire Me

I am a software developer with experience in full stack web and app development and a passion for creating tools that make development easier. If you're interested in hiring me for your next project or just want to chat, feel free to connect with me on [LinkedIn](https://www.linkedin.com/in/jerrythejsguy/) or [Twitter](https://twitter.com/much_wow_1).

## Follow Me

If you enjoy my work, you can follow me on  [Medium](https://medium.com/@th3g3ntl3man) for more articles and tutorials.

Thank you for using Trump Commit. Your codebase is tremendous.
1312. Leetcode Solution in cpp
Tags: cpp
Published: 2023-04-22 03:16:24

```cpp
class Solution {
public:
    int minInsertions(string s) {
        int n = s.length();
        vector<int> dp(n);
        for (int i = n - 2; i >= 0; i--) {
            int prev = 0;
            for (int j = i + 1; j < n; j++) {
                int temp = dp[j];
                if (s[i] == s[j]) {
                    dp[j] = prev;
                } else {
                    dp[j] = min(dp[j], dp[j-1]) + 1;
                }
                prev = temp;
            }
        }
        return dp[n-1];
    }
};
```
#leetcode
#challenge
Here is the link for the problem:
https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome/
My Little Python
Tags: python, programming
Published: 2023-04-22 01:26:03

We all have to start somewhere. In this journey I am embracing the beginning stages of obtaining the skills to have a strong foundation in cloud computing and security. 

Additionally, in my free time I love helping friends and family accomplish tasks with AI through Prompt Engineering. I had plans to learn Python at some point but since learning that I can combine AI and Python to create even better results, I figured there's no better time than now to jump in. 

Therefore here's my first few lines of Python code, hosted in Replit! Playing rock paper scissors with my little python code! 

![A screenshot of my Python code of a rock paper scissors game](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3vxdk2zl8v16y30ol4el.png)
Contractr Project Update: Implementing the Matching Feature
Tags: webdev, javascript, programming, react
Published: 2023-04-22 00:38:44

Hi everyone,

I'm excited to share with you the latest updates on the Contractr project. Today, on Day 81 of my #100DaysOfCode challenge, I worked on implementing the matching feature, which is a crucial part of the app's functionality.

First, I worked on finding and displaying users that the signed-in user has liked. I added animation functionality to the thumbs-up button, which shows the liked users. Although I didn't get much work done on the frontend, I plan to activate the swipe function by pressing the heart button in the future.

It's worth noting that this feature is not the matching function itself. To implement the matching functionality, I need to do the same thing for the freelancer site as I did for the client-side, i.e., putting the liked user IDs in the database. Then, I need to figure out how to filter both collections in the database to match users based on mutual likes.

While this task presents some exciting challenges, I'm looking forward to diving deeper into the code and coming up with an effective solution.

Thank you for following along on this journey with me. As always, I'll keep you updated on my progress as I continue working on the project.