teleren/devto huggingface dataset:
Waterfall VS Agile Methodologies
Published: 2024-04-21 13:44:41

Waterfall and Agile are two contrasting methodologies used in software development life cycles (SDLC). Here's a comparison between the two:

**Waterfall Methodology:**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/i7uwmyl3hbjfj149lo14.png)

**_Sequential Approach:_** Waterfall follows a linear and sequential approach to software development. Each phase (requirements, design, implementation, testing, deployment) is completed before moving on to the next phase.

**_Emphasis on Planning:_** It emphasizes comprehensive planning and documentation upfront. Requirements are typically gathered and documented extensively at the beginning of the project.

**_Less Flexibility:_** Once a phase is completed, it's difficult to go back and make changes without impacting subsequent phases. This can lead to delays and increased costs if changes are required later in the project.

_**Longer Delivery Time:**_ Waterfall projects tend to have longer delivery times, as the entire development cycle must be completed before the product is released to stakeholders.

**_Suitable for Stable Requirements:_** It works well when the requirements are well-understood, stable, and unlikely to change significantly during the development process.

**Agile Methodology:**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/es3nlav6te8yk86yutbd.png)

_**Iterative and Incremental:**_ Agile follows an iterative and incremental approach, breaking the project into small, manageable iterations called sprints. Each sprint delivers a potentially shippable increment of the product.

**_Adaptive Planning:_** Agile prioritizes adaptability and flexibility over extensive upfront planning. Requirements are gathered and refined iteratively throughout the project, allowing for continuous feedback and adjustments.

**_Emphasis on Collaboration:_** Agile emphasizes collaboration between cross-functional teams, including developers, testers, and stakeholders. Daily stand-up meetings and regular reviews facilitate communication and alignment.

_**Quick Delivery of Value:**_ Agile projects aim to deliver value early and frequently, enabling stakeholders to provide feedback and guide the direction of the project based on changing priorities or market needs.

**_Suited for Dynamic Requirements:_** It's well-suited for projects with evolving or uncertain requirements, as it allows for changes to be incorporated easily at any stage of development.
HTML - 16. Table Colspan & Rowspan | iAppTech.id
Tags: webdev, beginners, programming, tutorial
Published: 2024-04-21 13:42:00


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/dmh6zsj1jiart2p5y79n.png)

Welcome to iAppTech.id! 🚀

📚 Materi:
HTML — 16. Table Colspan & Rowspan, watch it!

👋 Halo, iAppTechers!
Kami adalah channel yang berfokus pada pembahasan seputar Frontend Development. Di sini, kami membawa Anda ke dalam dunia desain antarmuka, pengembangan web, dan segala hal seputar Frontend.

🔗 Playlist HTML:
https://www.youtube.com/playlist?list=PLc6PvCQzjsh_kCOlaz4ZFr8s708gNNVSv

💬 Disclaimer:
Channel ini saya buat khususnya untuk saya pribadi, dikarnakan menurut saya ketika saya belajar harus membuat konten, kenapa? karna menurut saya hal terbaik ketika belajar adalah mengaplikasikannya kembali, ditambah saya paham bagaimana jangka memori otak saya yang lama-lama tergerus oleh usia kedepannya, makanya saya buat channel ini untuk e-Library pengetahuan saya dibidang IT khususnya Frontend Developer. Ditambah saya juga mempunyai salah satu prinsip yaitu:

"Jika seorang manusia meninggal dunia, terputuslah amalnya, kecuali dari tiga hal: sedekah jariyah, ilmu yang bermanfaat dan anak shaleh yang berdoa untuknya." (HR. Muslim).

🖥️ Apa yang Akan Kamu Temukan di Sini?
Dapatkan wawasan mendalam tentang berbagai teknologi frontend, tutorial praktis, tips & trik, serta eksplorasi proyek-proyek menarik. Kami akan memandu Anda melalui dunia seru Frontend Development!

☕ Traktir Saya Ngopi:
 https://saweria.co/appardana

🔔 Berlangganan Untuk Konten Berkualitas:
Jangan lupa tekan tombol subscribe untuk tetap terkini dengan konten-konten menarik kami. Kami sangat bersemangat untuk berbagi pengetahuan dan pengalaman dengan Anda!

⏰ Jadwal Ngonten: Setiap Selasa dan Kamis, pastikan Anda tidak ketinggalan!

🤝 Mari Bergabung dalam Komunitas:
- https://www.youtube.com/c/iapptech
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Terima kasih telah bergabung dengan iAppTech.id. Mari bersama-sama memperkaya pemahaman kita tentang Frontend Development!

✨ Don't forget, ngopi heula… ✨

iAppTech #iAppTechId #Frontend #frontenddeveloper #programming #programmer #web #webdevelopment #Aditria #Pardana #AditriaPardana
data in statistics
Published: 2024-04-21 13:36:54

Veriler genellikle iki ana türde sınıflandırılır: Nitel (Kategorik) ve Nicel (Sayısal).


## Nitel Veri (Kategorik Veri)
 Bu veri türü, belirli bir kategori veya grup içine giren bilgileri ifade eder. Nitel veri iki alt kategoriye ayrılır:

**Nominal Veri(isimsel)**
 Nominal veri, sınıflandırma ve etiketleme için kullanılır ancak sıralama yapmak için kullanılamaz. Örneğin, bir kişinin cinsiyeti veya evcil hayvan türleri nominal veriye örnektir.

**Ordinal Veri** 
Ordinal veri, belirli bir sıralama veya düzen içerir. Örneğin, bir ürünün müşteri memnuniyet puanı ordinal veriye örnektir.

## Nicel Veri (Sayısal Veri)
 Bu veri türü, sayılabilir veya ölçülebilir bilgileri ifade eder ve matematiksel işlemlere tabi tutulabilir. Nicel veri iki alt kategoriye ayrılır:

**Aralık Verisi**
 Aralık verisi hem sıralama hem de eşit aralıklar içerir. Ancak, bu veri türünde gerçek sıfır noktası yoktur. Örneğin, sıcaklık dereceleri (Celsius veya Fahrenheit) aralık verisine bir örnektir.

**Oran Verisi**
 Oran verisi hem sıralama hem de eşit aralıklar içerir ve gerçek bir sıfır noktası vardır. Örneğin, bir kişinin ağırlığı veya yaşadığı gün sayısı oran verisine bir örnektir.
How Reading Can Polish Your Learning skills
Tags: reason, performance, skill, discuss
Published: 2024-04-21 13:34:48



Improving your learning skills through developing reading habits is a highly effective strategy. Here are several ways in which cultivating a regular reading routine can enhance various aspects of your learning

**Enhanced Comprehension and Retention: **Regular reading can improve your ability to understand complex ideas and retain information. As you read, you encounter diverse sentence structures, vocabulary, and concepts, which can help you grasp and remember new information more effectively when encountering similar content in other contexts.

**Increased Vocabulary:** Frequent reading exposes you to a broader range of words, which can be particularly useful in academic and professional settings. This exposure helps you not only in understanding what you read but also in communicating more effectively, both in writing and speech.

**Improved Focus and Concentration: **According to [Today Reader](https://todayreader.com), where distractions are omnipresent, reading can be a good exercise in focus and concentration. Sitting down with a book requires a lengthier attention span than many other activities, which can help strengthen your mental focus over time.

**Better Writing Skills:** Exposure to well-constructed sentences and various writing styles can improve your writing abilities. Reading regularly can provide you with a clear sense of what makes writing effective, which can be mirrored in your writing projects.

Enhanced Critical Thinking Skills: Reading complex and challenging material can help develop critical thinking skills. Analyzing characters, plots, and arguments in texts allows you to weigh evidence, consider different perspectives, and make informed judgments, which are crucial skills in academic and real-world scenarios.

**Increased Empathy and Emotional Intelligence:** Literature, especially fiction, can offer insights into the emotions and motivations of others, fostering empathy. Understanding diverse perspectives through reading can improve interpersonal relations and enhance emotional intelligence, aiding in social learning contexts.

**Cultural Awareness:** Reading books from different cultures and periods can expand your understanding of the world. This artistic perspective can enhance global awareness and sensitivity, important traits in increasingly interconnected academic and professional fields.

**Motivation and Inspiration:** Books can be a source of encouragement and inspiration, showing what’s possible and encouraging pursuing one's goals. Educational and self-help books, in particular, can provide strategies and insights that help in personal development and learning.

Integrating reading into your daily routine can significantly boost your cognitive abilities and become a more effective learner. Whether deepening knowledge in a specific field or enhancing general cognitive functions, reading is a powerful tool for personal and academic growth.
Different phases of STLC
Published: 2024-04-21 13:28:59


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/p35fgogu8nfjuzadpfrm.png)

The Software Testing Life Cycle **(STLC)** consists of several phases, each with its own set of activities and objectives. 
Here are the typical phases of the STLC:

**Requirement Analysis:** In this phase, the testing team analyzes the requirements documents to understand the scope of testing, identify testable requirements, and determine the testing approach. Testers collaborate with stakeholders to clarify ambiguities and define acceptance criteria.

**Test Planning:** Test planning involves creating a detailed test plan that outlines the testing strategy, objectives, scope, resources, schedule, and deliverables. It also includes defining test environments, test data requirements, and risk management strategies. The test plan serves as a roadmap for the testing effort.

**Test Design:** In this phase, test cases are designed based on the requirements and test scenarios identified during requirement analysis. Test cases include steps to be executed, expected results, and any necessary test data. Test cases should cover both positive and negative test scenarios.

**Test Environment Setup:** Setting up the test environment involves configuring the hardware, software, and other necessary infrastructure to conduct testing. This may include installing and configuring the application under test, setting up test databases, and establishing connections to external systems or services.

**Test Execution:** Test execution involves running the test cases in the test environment and verifying the actual results against the expected results. Testers execute both manual and automated tests, report defects, and collect data on test coverage and execution status. Test execution may be iterative, with multiple test cycles conducted to validate different aspects of the software.

**Test Closure:** The test closure phase marks the end of the testing process for a specific release or project. It involves completing any remaining testing activities, such as finalizing test documentation, archiving test artifacts, and conducting lessons learned sessions to identify areas for improvement in future testing efforts.

These phases of the STLC are typically iterative and may overlap or repeat throughout the software development life cycle to ensure thorough testing coverage and quality assurance.
Bridging Tech and Fashion
Tags: management, javascript, student, community
Published: 2024-04-21 13:17:04

Hey there, I'm Theo Soulier, a 21-year-old full stack developer and budding entrepreneur. Currently juggling my studies with my passion for coding, I'm also diving headfirst into the world of luxe with my upcoming watch brand.

From a young age, I've been fascinated by technology. As I honed my skills in coding, I realized the immense potential in blending tech with timeless style. That's why I decided to venture into watchmaking.

My brand aims to fuse craftsmanship with modern design, offering luxury timepieces without the extravagant price tags. With my background in development, I'm leveraging e-commerce and digital marketing to reach a global audience.

I'm excited to embark on this journey, pushing boundaries and redefining the intersection of technology and fashion. Stay tuned as I bring my vision to life, one line of code and one elegant watch at a time.
Jakarta Persistence API (JPA) example application: Northwind sample database
Tags: java, springboot, springdata, jpa
Published: 2024-04-21 13:10:08

Northwind database is a sample database that is used in the tutorial of Microsoft's database product. Provided database mapping on entity classes and simple repository base on Spring Data JPA. So that may base on it to practice to access the database by JPA feature such as JPQL and Criteria API, or even native SQL statement. The source code is on [https://github.com/saladlam/jpa-northwind](https://github.com/saladlam/jpa-northwind).
TESTING TECHNIQUES
Tags: webdev, beginners, programming
Published: 2024-04-21 12:30:04


 


1. BOUNDARY VALUE ANALYSIS:
     It is a testing technique in which the input parameters of the software are tested. From the word boundaries we know that it deals with certain range of input parameters such that it has certain limitations.
    
    Boundary value analysis has three varieties of giving test case analysis.

ON BOUNDARY ANALYSIS:

    Giving exactly the valuable input, which is applicable, for example age limit of amusement park entry is between 18 to 40, in this case we can test the software by entering,  

>any age within the limits (18-40) or (maximum limit -1) or (minimum limit+1) or exactly 18 or 40

   This valid input testing is on boundary analysis.
  

OVERFLOW ANALYSIS:

     Giving more than the limit is said to be overflow test case, for example in that same textbox from above example we try to give

> 41 or 42 (maximum limit +1 or maximum limit +2)

 and checking whether the error message is shown to the user or not, is said to be overflow analysis.

 
UNDERFLOW ANALYSIS:  

    On giving data less than the actual limit, 

> giving 17 or 16 (minimum limit-1 or minimum limit-2) 

that is said to be underflow testcase in such cases error message to be displayed to the user.

 
2.DECISION TABLE TESTING: 

    It is the testing in which a variety of conditions and their interrelationships are checked.

     For example, username field and passcode field will have different combinations once a user has entered wrong id and wrong passcode or any one of this field is correct and another one is wrong in that cases the user is unable to login because of wrong combinations.
  only the user can login if the combination is exact match.

3.USE CASE TESTING

  Use case design is simple procedure comes under functional testing it defines the actions done by the user on the software and how the software responses to user for every click or input given from start to end of the entire process.  

   For example, ATM machine it starts with card insertion into the machine aft identifying the account holder asks for service that is required then according to it gets the data and process it once user gives the PIN number, such that from starting to ending the flow is checked in use case testing. 

4.LCSAJ TESTING:
  
   The expansion of LCSAJ is Linear Code Sequence and Jump it is a white box technique testing methodology it is also called as code coverage analysis where we can find which part of code is executed with given test case and we can design new test cases to make the remaining code to be executed with other possible prospectives. 
   
       Also checking the software starts at exact starting of code or at any branch also ends at end of the code or at branch. And which is essential for identifying potential defects and vulnerabilities in the code.
Left Rotate array by K elements using reverse approach
Tags: array, rotatearray, javascript, programming
Published: 2024-04-21 12:03:37

Given array 
```
const arr=[1,2,3,4,5,6]
```
Left Rotate array by 2 elements , Output will be ---

```
arr = [3,4,5,6,1,2]
```

This problem can be solve with reverse array approach easily

- First devide the array with given K elements to rotate
- In our case K is 2 

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/96v7k8siurl0r2fa8ebf.png)

- Reverse the corresponding devision of elements
- So after reversing the array will be 

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zjqh3lhibxdo4zwc9plm.png)

- Now reverse the whole array that will give you the output
- After reversing whole array the output will be

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bko93g2ljocddj4i6c0d.png)

Implementation in Code level

```
let arr=[1,2,3,4,5,6]
let k=2

function reverseArray(arr,start,end){
    while(start<end){
        [arr[start],arr[end]]=[arr[end],arr[start]];
        start++;
        end--;
    }
    
    return arr;
}

//this will be the first step to reverse the first half
let reversedFirstHalf=reverseArray(arr,0,k-1)

//this will be the second step to reverse the second half
let reversedSecondHalf=reverseArray(reversedFirstHalf,k,arr.length-1)

//After reversing the whole array
let rotateArrayOutput = reverseArray(reversedSecondHalf,0,arr.length-1)
```
DOING THE SAME APP IN 9 JAVASCRIPT FRAMEWORKS
Published: 2024-04-21 11:59:07

## IDEA 
ONE FINE DAY WHEN I WAS SEEING YOUTUBE I SAW THE VIDEO DOING THE SAME APP IN 10 FRAMEWORKS. THEN I ALSO DECIDED TO DO IT SO I PICKED THE FRAMEWORKS 
1)VANILA JAVASCRIPT
2)LIT
3)JQUERY 
4)PREACT
5)QWIK
6)REACT
7)SOLID
8)SVELTE
9)VUE

AND DECIDED TO MAKE A COUNTER APP

## VANILA JAVASCRIPT 
I FIRST THOUGHT BEFORE IT WAS COMPLETELY DIFFERENT FROM JAVASCRIPT BUT AFTER 2MIN I REALISED THAT IT WAS THE SAME AS JAVASCRIPT BUT NO.VANILA JS JUST TOOK ME 5min TO DO AND IT WAS VERY EASY

## LIT
THIS WAS THE FIRST TIME I HEARD ABOUT LIT .I THOUGHT WHAT IS LIT.AFTER SEEING ONE DOCUMENTATION OF A TODO APP I THOUGHT IT WAS COMPLEX BUT IT WAS PRETTY EASY ONLY BUT NOT AS VANILA JAVASCRIPT

## PREACT 
AFTER HEARING THIS NAME PREACT I THOUGHT THERE WERE TWO TYPES OF REACT ONE REACT AND ONE PREACT AND THAT WAS TRUE PREACT IS A PRINT OF REACT AND I NOW REACT WELL SO IT WAS EASY

## QWIK
MY FIRST FEELING AFTER HEARING THIS NAME WAS DOES IT WORK FAST .AFTER SEEING ONE DOCUMENTATION IT WAS ALSO ALMOST REACT BUT THERE IS A EXTRA DOLLAR SYMBOL EVERYWHERE

## REACT
IT WAS THE EASIEST OF ALL FOR ME .I JUST TOOK 2min TO DO THIS PROJECT IN REACT 

## SOLID
THIS LANGUAGE WAS SOLID.THIS IS ALSO ALMOST REACT

## SVELTE
IT WAS TOTALLY DIFFERENT FROM ALL LANGUAGES BUT IT WAS VERY EASY TO DO .SO I VOTE THAT THE BEST ONE IS SVELTE

## VUE
IT WAS THE NINTH AND THE FRAMEWORK I WILL DO. VUE WAS EASY BUT NOT AS SVELTE SO, I DECIDED TO PUT VUE IN THE SECOND POSITION

## ALSO TELL YOUR FAVOURITE FRAMEWORK IN THESE NINE IN THE COMMENTS
How to make a new post
Published: 2024-04-21 11:53:15

Lately, I have been doing a lot of crazy things and today I might have done the craziest thing possible, i.e., I accessed the Dark Web. Many of you might be familiar with the term but still for you folks who are hearing this term for the first time: the Dark Web is one of the parts of the Deep Web. To know about Dark Web you require some basic understanding of the Deep Web. Regardless, the Dark Web is a secretive, hard-to-trace, encrypted digital ecosystem on the internet that is filled with criminals, and infested with drug cartels, UN-sanctioned terrorist organizations, political dissenters, anonymous journalists, and Government spies.
Seeking suggestions for virtual co-working
Tags: discuss, productivity, community
Published: 2024-04-21 11:41:54

Hey All!

I am curious if there are any communities or online platforms you all use for virtual co-working. Being able to work remotely has a lot of benefits, but sometimes, it can get a bit lonely. Human beings are generally social creatures and need some human interaction, accountability, or even just the sense that there is someone else around.

This can be especially true late at night or during the early morning hours.  I am curious to learn if there are such services, if there is a need for such a service, or how you work around it.
How to Host a Static Website on Amazon S3
Tags: cloudcomputing, aws, beginners, tutorial
Published: 2024-04-21 11:26:00

Amazon S3 is an object storage service provided by Amazon Web Services (AWS). It is designed to store and retrieve any amount of data from anywhere on the web, making it ideal for a wide range of use cases, from simple storage for backup and archiving to serving static website content and hosting entire applications.

If you’re studying for AWS projects and looking for easy and beginner friendly projects, this is one of them.


To start:

- Create an AWS account. You will get one year Free to test and use various functions — some are free but some have pay as you go pricing so be careful and do your research.

- A static HTML site. If you need inspiration or Figma Designs you can explore Frontend Mentor for the designs.

- VScode and Github to code and store your code.

## Create a Bucket
Navigate to Amazon S3 and create a bucket. Every object in AWS S3 is stored in a bucket.

## Create objects by uploading your static HTML and related files and folders

You can upload them as files or you can upload them as folders. Use the same file structure as you had in your local machine. I have an additional src file as I’m using Tailwind CSS.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/59emw76us5f0gm5hj8sf.png)

This is my view after uploading all the files, similar to what I had in my project locally.


Clicking on the associated Object URL on the index.html object view will return an error, because you need to some changes to your bucket configuration.



![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/onetyzgwu4gnmje00aqs.png)


To change this, we need to:

- Enable static hosting. To do that, navigate to properties on your particular bucket view and scroll down to Static Website Hosting. Click on enable and specify the website home or default page, in this case index.html. Save changes.

- Make the website publicly accesible. To do that, click on permissions and uncheck the block public access box. Save changes and confirm.

- Within permissions, navigate to Object ownership and make public using ACL.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zrvzf8nbzxatx3wuxc0j.png)


To find your object URL, click in the index.html object. You should be able to see the Object URL.
Here’s a look on my static site on AWS S3.



![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kub4n7i1qfqqzxhdnw0n.png)


This is a fairly easy and beginner friendly AWS project especially if you want to study for your AWS Certified Cloud Practioner certificate. You can also add it to your cloud engineer portfolio.

If you liked this article, support me on [Patreon](https://www.patreon.com/mundianderi). _This article first appeared on [Medium](https://medium.com/blog-write-heal/how-to-host-a-static-website-on-amazon-s3-9cea5a9ad9e6)_.
Hypnotized by Love Sariah Wilson
Published: 2024-04-21 11:20:12

Hypnotized by Love                                                                                                                                                                      The power of suggestion does wonders for the heart in an absolutely captivating romantic comedy by Sariah Wilson, the bestselling author of The Chemistry of Love.
Hypnotist Savannah Sinclair is known for helping clients overcome their deep-rooted issues, from anxiety to addiction. But her nontraditional approach also attracts plenty of skeptics—including her high school nemesis and rival, Mason Beckett, who just so happens to be the boy who broke her heart                **[click](https://youtu.be/TVsKz6SHazM?si=z6bCq4N6sarKf1n_)**