teleren/devto huggingface dataset:
📦 "OaaS" : A short intro to "Operations as a Service" & its tremendous benefits
Tags: devops, productivity, automaton, operations
Published: 2024-07-14 22:26:39

## 💭 About `OaaS`

How many times did you:

- **🧑‍🎨 As a `DEV`** : to explain a third party how to use a job/task you have developed and delivered in your favorite language on a specific server...**happily & proudly delivered with a wiki page** that explains step by step how to run the task
- **🤔 As an `OPS`** : to discover a long documentation or issue that explains you the 100 steps to achieve to successfully run the task, schedule, monitor and integrate it with the crowd of other jobs you already have to RUN... and what to do and who to call if it fails
- **☎️ As a `hotliner`** : being frustrated to wait for the `OPS` to give you the **`root` access to this damn server so you can reboot a specific service or run `shell` script... and then complaining about their lack of trust.**

**👉 Well, `OaaS` is a way to achieve this : build an end-to-end pipeline so people, within a shared pipeline, can build, share, run, delegate and monitor job executions within an interoperable way.**

Interoperability & uniformity are the key point here, for example to : 

- **Deliver** a clickable button on a web console
- **Configure** a ticket generation in some cases
- **Trigger** a third-party SaaS or non-SaaS webhook
- **Plug-it** into Pagerduty like services in case of failure
- **Let AI agents** call jobs to overcome some incident
- ...

[Rundeck](https://www.rundeck.com/) is a way to achieve this, ie. **to prioritize development/configuration/uniformity** over endless heterogeneous documentations.

## 🎯 Why of this post

The aim of this post is to introduce these aspects with simple & pragmatic concepts.

## 🍿 Demo

{% youtube 3F7njD6ehqM %}
Mastering Python's itertools Module
Tags: javascript, beginners, programming, tutorial
Published: 2024-07-13 00:33:55

## Introduction

Python is a versatile programming language recognized for its easy-to-read syntax and powerful functionalities. One of the most useful modules in Python is the "itertools" module, which provides a set of tools for efficient iteration and combination of elements. It is a standard library module that contains various functions for generating and manipulating iterators, which are objects used to iterate over data structures. In this article, we will explore the advantages, disadvantages, and features of mastering Python's itertools module.

## Advantages

The itertools module in Python offers numerous advantages. Firstly, it provides efficient functions for working with iterators, reducing the need for manual iteration over data structures. This makes code more concise and readable. Secondly, itertools includes functions for generating infinite iterators, which can be useful for tasks such as generating prime numbers or permutations. Furthermore, it provides tools for working with large amounts of data without the need for storing them in memory, making it memory efficient.

## Disadvantages

Although itertools is a powerful tool, it also has some limitations. One of the main drawbacks is that it only works with iterable objects, which may limit its applicability in some cases. Another disadvantage is that it does not support parallel processing, making it difficult to take advantage of multiple processors when dealing with complex calculations.

## Features

The itertools module includes a wide range of features that make it a valuable asset for developers. Some of these features include functions for iterating over combinations, permutations, and combinations with replacement. It also offers tools for grouping data, flattening nested data structures, and filtering elements based on specific criteria.

### Example of itertools usage

```python
import itertools

# Example: Generating permutations
perms = itertools.permutations([1, 2, 3])
for perm in perms:
    print(perm)

# Example: Grouping data using groupby
data = [('fruit', 'apple'), ('fruit', 'banana'), ('vegetable', 'carrot')]
for key, group in itertools.groupby(data, lambda x: x[0]):
    print(key, list(group))
```

## Conclusion

In conclusion, the itertools module in Python is a powerful tool for efficient iteration and combination of elements. Its advantages of improving code readability, providing infinite iterators, and being memory efficient make it a popular choice among developers. However, it also has some limitations and lacks support for parallel processing. Therefore, mastering the itertools module is beneficial, but it is important to understand its limitations and use it accordingly in your code.
Contact Form - Frontend Mentor
Tags: webdev, javascript, beginners
Published: 2024-07-13 00:54:41

**Contact Form from Frontend Mentor**

The challenge
Your challenge is to build out this contact form and get it looking as close to the design as possible. Pay particular attention to making this form accessible. Building accessible forms is a key skill for front-end developers. So this is a perfect challenge to practice.

You can use any tools you like to help you complete the challenge. So if you've got something you'd like to practice, feel free to give it a go.

Your users should be able to:

Complete the form and see a success toast message upon successful submission
Receive form validation messages if:
A required field has been missed
The email address is not formatted correctly
Complete the form only using their keyboard
Have inputs, error messages, and the success message announced on their screen reader
View the optimal layout for the interface depending on their device's screen size
See hover and focus states for all interactive elements on the page

Tools used to build this website
- _HTML, CSS, and JS_

I am proficient in HTML and CSS because they are easy to learn. I used flexbox to be able to create the card and then used flex to be able to get the text and other elements in a column. I used media query to be able to make the website responsive.

Challenges I faced:
I learned how to use JS/HTML DOM elements to be able to add functionality to the website. This allowed me to be able to check if the form has any errors or doesn't match. If the user enters the correct information then a message would appear for 5s.

Demo:
https://contactformmain.netlify.app

Github:
https://github.com/Kyl67899/contact-form
Merge 2 sorted lists
Tags: go, interview, programming
Published: 2024-07-13 01:18:44

Today, we look at another linked list task.

Create a function to merge 2 sorted linked lists. The resulting list should be a sorted list using the nodes of the 2 lists.

For this, we will use the generic linked list implementation from the previous post which can be found [here](https://dev.to/johnscode/reverse-a-linked-list-in-go-583i)

```
func mergeSortedLists(ll1 LinkedList[int], ll2 LinkedList[int]) LinkedList[int] {
	result := LinkedList[int]{}

	p1 := ll1.Head
	p2 := ll2.Head
	rp := &Node[int]{} // dummy node as result head
	result.Head = rp
	for p1 != nil && p2 != nil {
		if p1.Data >= p2.Data {
			rp.Next = p2
			p2 = p2.Next
		} else {
			rp.Next = p1
			p1 = p1.Next
		}
		rp = rp.Next
	}
	if p1 != nil {
		rp.Next = p1
	}
	if p2 != nil {
		rp.Next = p2
	}
	result.Head = result.Head.Next
	return result
}
```
The logic is pretty easy to follow. First, we setup pointers to the heads of the 2 lists and the resulting list. Since we don't know the 'head' of the resulting list, we create a dummy node as a placeholder (we'll fix that one later). We also create a current node, rp, for the result list. 

Next, we iterate over the 2 lists. We have a current node for each list. At each step, we look at which of the 2 current nodes has the smaller value and put that node on the result list. Then move the current node of that list (the one that was smaller) to the next node in the list. We also need to move the current node of the result to the next place.

Our loop logic is simply to keep doing this until we reach the end of one of the lists. At this point, we know that there are no more elements to compare for one of the lists; they are already in the result list. So, we can then simply put the remaining nodes of the other list at the end of the result, since we know they are already sorted.

How would you do this different? Can we optimize this? Let me know in the comments.

Thanks!

_The code for this post and all posts in this series can be found [here](https://github.com/johnscode/gocodingchallenges)_
一些想法
Published: 2024-07-13 01:31:25

最近全面使用emacs，不过我感觉我快捷键还是没背熟，太多了，我其实是个很懒的人，也不是太依赖工具。感觉使用代码片段功能挺好用，像我这样，会个7、8种编程语言的，有些语法细节真不是太熟，平时也不太关注语法，所以啊，代码片段太有用了。自己加了一些常用代码片段进去，写代码又快了。提升效率确实是方方面面的事情。
7 Skills A Backend Developer Needs in 2024
Tags: developer, javascript, opensource, news
Published: 2024-07-13 01:43:28

In the rapidly evolving tech landscape, staying ahead in backend development requires continuous learning and adaptation. As we approach the second half of  2024, the demand for skilled back-end developers is higher than ever, driven by the need for robust, scalable, and efficient server-side solutions. This blog post will explore the essential skills for back-end development in 2024, offering tips to enhance your coding abilities and improve project outcomes. 
**
1. Proficiency in Programming Languages**

## 

Mastery of core programming languages is the foundation of back-end development. In 2024, the most in-demand languages include:

JavaScript (Node.js): Known for its asynchronous capabilities and extensive ecosystem, Node.js remains a top choice for server-side development.
Python: Praised for its readability and versatility, Python is widely used in web development, data analysis, and machine learning.
Java: With its strong performance and security features, Java continues to be a staple in enterprise-level applications.
Go: Known for its concurrency and efficiency, Go is increasingly popular for developing microservices and high-performance applications.
2. Understanding of Databases

## 
A solid understanding of both relational and non-relational databases is crucial:

SQL Databases: Familiarity with MySQL, PostgreSQL, and Oracle is essential for managing structured data.read more on https://baaraku.io/backend-developer/
Revolutionizing User Experience with AI Tools: The Sista AI Approach
Tags: ai, react, javascript, typescript
Published: 2024-07-13 01:45:37

<h2>Unlocking the Potential of AI Tools</h2><p>The field of Artificial Intelligence (AI) is rapidly evolving, with numerous innovations and advancements transforming various aspects of our lives. From AI trends analysis tools to AI-powered writing fusion, AI is revolutionizing the way we work and interact with technology.</p><h2>Sista AI: Your Smart Integration Platform</h2><p>One standout solution in this AI revolution is <strong><a href='https://smart.sista.ai/?utm_source=sista_blog&utm_medium=blog_post&utm_campaign=Revolutionizing_User_Experience_with_AI_Tools'>Sista AI</a></strong>, an end-to-end AI integration platform that transforms any app into a smart app with an AI voice assistant in less than 10 minutes. With features like conversational AI agents, multi-tasking UI controller, and real-time data integration, Sista AI offers unparalleled user engagement and operational efficiency.</p><h2>Benefits of AI in Various Industries</h2><p>AI tools have reshaped industries by enhancing user experience, boosting productivity, and enabling personalized interactions. Sista AI's advanced technologies empower businesses to streamline operations, increase user engagement, and deliver exceptional customer experiences.</p><h2>Innovative AI Applications by Sista AI</h2><p>Sista AI's voice user interface supports commands in over 40 languages, making it a dynamic and engaging platform for a global audience. The automatic screen reader feature and full-stack code execution capabilities further demonstrate the platform's versatility and innovation.</p><h2>Embrace the Future with Sista AI</h2><p>As AI continues to evolve and revolutionize technology, integrating innovative solutions like Sista AI is essential for businesses to stay competitive and provide cutting-edge services. Discover the power of AI tools with <strong><a href='https://smart.sista.ai/?utm_source=sista_blog&utm_medium=blog_post&utm_campaign=Revolutionizing_User_Experience_with_AI_Tools'>Sista AI</a></strong> and unlock limitless possibilities for your business.</p><br/><br/><a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=big_logo" target="_blank"><img src="https://vuic-assets.s3.us-west-1.amazonaws.com/sista-make-auto-gen-blog-assets/sista_ai.png" alt="Sista AI Logo"></a><br/><br/><p>For more information, visit <a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=For_More_Info_Link" target="_blank">sista.ai</a>.</p>
Key Skills for Tech Freelancers
Tags: freelance, developer, softwareengineering
Published: 2024-07-13 01:46:24

Freelancing in the tech industry offers numerous opportunities for skilled professionals to work on diverse projects, enjoy flexible schedules, and achieve financial independence. This guide will provide you with the essential tips and strategies to excel as a freelancer in the tech industry, ensuring your freelance success.

Finding Your Niche
Identifying your niche is crucial for standing out in the competitive tech industry. Focus on your strengths and interests, whether it’s web development, data analysis, cybersecurity, or another tech field. This targeted approach will enhance your freelance tech career by attracting clients seeking your specific expertise.

Building Your Portfolio
Create a strong portfolio showcasing your best work. Include case studies, testimonials, and detailed project descriptions to demonstrate your expertise and value to potential clients. A well-rounded portfolio is a key component of freelance success and helps in establishing trust with clients.

Setting Competitive Rates
Research market rates for your services and set competitive yet sustainable pricing. Consider factors such as your experience, the complexity of the projects, and the value you bring to clients. Proper pricing strategies are essential for a thriving freelance career in.....read more on https://baaraku.io/key-skills-for-tech/
Day 10 & 11 of my Devops Journey: Kubernetes Networking Fundamentals - Challenges and Solutions
Tags: devops, kubernetes, beginners, networking
Published: 2024-07-13 02:44:09

**Introduction:**

Hey everyone! Welcome back to Day 10 & 11 of my SRE and Cloud Security journey. Today, we dove deep into Kubernetes networking, and let me tell you, it wasn't all sunshine and rainbows. I encountered some real head-scratchers, but with persistence and a little help from the internet, I was able to overcome them. So, let's dive into the challenges I faced and the solutions I implemented!

**Challenges:**

1. **Setting Up Minikube:**  My first hurdle was getting Minikube running smoothly on my Windows machine. It felt like I was trying to fit a square peg into a round hole! I encountered errors and had to troubleshoot the installation process.

2. **Understanding the `kubeconfig` File:**  I had a bit of a moment of confusion when I realized I had multiple Kubernetes clusters configured in my `kubeconfig` file.  Switching between them felt like navigating a maze!  

3. **Connecting to the Right Cluster:**  The biggest challenge was figuring out how to connect to the correct Kubernetes cluster, especially since I had a mix of local and cloud-based clusters. It was like trying to find the right address in a city with confusing street signs.

**Solutions:**

1. **Minikube Setup:** I carefully followed the Minikube installation guide for Windows, ensuring that Hyper-V (you can use Docker Desktop) was properly enabled.  I also checked the Minikube logs for any error messages and addressed them accordingly.

2. **`kubeconfig` File Management:**  I learned how to use the `kubectl config` commands to list all the contexts in my `kubeconfig` file, identify the problematic ones, and delete them.  I also learned to set the `current-context` to the cluster I wanted to work with.

3. **Connecting to the Correct Cluster:** I used `kubectl config use-context` to switch to the `docker-desktop` context, which was the cluster I wanted to use for my Day 10 & 11 project.  I also learned to verify the server address and other details in my `kubeconfig` file to ensure it was pointing to the correct cluster.

**Conclusion:**

Day 10 & 11 was a rollercoaster ride of challenges and triumphs.  I learned a lot about Kubernetes networking, the importance of managing your `kubeconfig` file, and the value of persistence in troubleshooting.  I'm feeling more confident now, like I have a better understanding of the roads and traffic lights in my Kubernetes city!
Turn the Table
Tags: codepen
Published: 2024-07-13 02:14:25

Inspired by the @keyframers, I decided to try my hand at animating a 3D turntable.

@keyframers pen - https://codepen.io/team/keyframers/pen/YjMwqX

original Inspiration: https://dribbble.com/shots/4930227-Vinyls-E-Commerce-App

{% codepen https://codepen.io/jonwilcox/pen/MBRLBY %}
Looking for Full-stack Devs for XDR cybersecurity platform
Tags: react, javascript, python, restfulapi
Published: 2024-07-13 02:21:58

I am building a XDR cybersecurity platform Using AI and ML to detect and respond to cyber threats instantly on a network. The AI and ML uses Indicators of Attack to find cyber threats and forces a reset/disables user access on the compromised endpoint. Please reach out to me here I could really use the help. You will be compensated for your help!!  

Michael McMillan
X: MichaelMcM92662
EMail: MMcMillanIT@gmail.com
Vertical Injection Machines: Flexibility and Precision in Manufacturing
Tags: design
Published: 2024-07-13 02:49:33

Delivering Precision and Versatility in Manufacturing with Vertical Injection Machines

Vertical Injection Machines are machines used specifically for the meticulous creation of an exercise optionsixedReality products. These rotary vertical injection moulding machine are known to create manufactured goods with highest precision, safety and can be used in a versatile manner as well. Here we will discuss in detail the unbeatable benefits and features of Vertical Injection Machines that make it one of a kind when operating at assembly operations for manufacturing applications.

Benefits of a Vertical Injection Moulding Machines:

Unmatched precision: If we look at how Vertical Injection Machines are designed these can produce anything with unmatched accuracyDetermines greatFeatures of both_correctides across the board. As long as there is a need to create intricate designs or complex shapes, these machines will be required in order to exercise sharp attention to detail.

Safe to use: This closed system of Vertical Injection Machines does take the safety of workers on top and it reduces accident risks. This feature creates a safe working environment to construct items while being secure.

High Production Versatility: Vertical Injectors provide some incredible manufacturing flexibility. A wide range of rotary table injection molding machine products can be produced to suit the needs, with several moulds of various sizes and shapes.

One can produce as many products in a very short and limited time frame using these machines Its rapid production capacity trends to be far more effective for the user. It not only saves the time but also increases productivity of work to a greater extent.

Use of the vertical injection machines:
How to Operate a Vertical Injection Machine Here are the steps to utilize seamlessly:

Secure the mold into machine.
The Raw Materials should be loaded into the machine.

This will make to addjust the temperature and pressure settings as needed.

Start the machine
Wait for the product manufacturing process to be complete.

Applications of Vertical Injection Molding Machine
Vertical Injection Machines are used, for example in the automotive industry and connector manufacturers, control units or micro-components. The problem with these vertical injection machine is that they are great for working with many different materials such as plastic, rubber and silicone to make a whole host of products.

Vertical Injection Machines pkp way to improve manufacturing accuracy and flexibility. The importance of robotic skill in promoting the safe, precise and efficient production process within diverse industries is also highlighted.
How McDonald's Menu Uses Data to Optimize Customer Experience
Tags: webdev, website
Published: 2024-07-13 02:54:39

In today's fast-paced world, fast food giants like McDonald's are not just serving up burgers and fries—they're leveraging cutting-edge data analytics to enhance customer experience. The evolution of the McDonald's menu is a fascinating study of how data can drive decision-making in the food industry. In this post, we'll explore how McDonald's uses data to optimize its menu, improve customer satisfaction, and stay ahead in the competitive fast-food market. By the end, you'll have a deeper understanding of the intersection between data and deliciousness, and how it impacts what you see on the menu.__

Data and Insights

Analyzing Customer Preferences: McDonald's collects and analyzes data from millions of transactions daily to understand customer preferences. This data includes popular items, peak ordering times, and customer feedback.
Trend Analysis: By examining trends, McDonald's can predict future demands. For instance, a rise in demand for healthier options led to the introduction of salads and fruit options.
Localized Menus: Data helps McDonald's tailor menus to regional tastes. For example, in India, McDonald's offers the McAloo Tikki burger, catering to local vegetarian preferences.
Technical Aspects

Data Analytics: McDonald's employs sophisticated data analytics tools to process vast amounts of data. These tools help identify patterns and trends that inform menu decisions.
AI and Machine Learning: AI-driven insights allow McDonald's to optimize inventory management and reduce waste. Machine learning algorithms predict which items will be popular in certain locations and times, enabling better stock management.
Digital Menu Boards: These boards are not just for display—they're integrated with real-time data to highlight popular items, suggest meal combinations, and offer dynamic pricing.

Conclusion
McDonald's is a prime example of how data can revolutionize a business. By harnessing the power of data analytics, AI, and machine learning, McDonald's continuously refines its menu to meet customer demands and enhance their dining experience. Next time you visit McDonald's, you'll know that behind every menu item is a wealth of data-driven insights. For more detailed insights into McDonald's latest menu, [visit this site.](https://mcdomenusph.com/)