teleren/devto huggingface dataset:
State in React
Tags: react, state
Published: 2024-06-20 20:25:29

React has many great features to it that help create javascript. One way to impact the DOM is through state. React makes what is required in regular Javascript to update DOM much easier with fewer steps and simpler syntax. The unique feature to state is that every time it is updated the page re-renders. 

State is data that is dynamic in a component. It can be updated over time as the application is updated and changed by the user. All these updates will be reflected in the webpage as they are changed. 

When it is required to update an item that needs to be shown on the page instead of updating a variable you are to update state as you can have the issue of the variable updating but the page would not re-render and the updated variable would not be displayed. 

The way to use state in react is a multi step process. First you need to use the react hook:  import { useState } from "react"

This lets you use react's backend information and all that is required to update state. 

Then you need to create a state variable. An example of this is: 
const [count, setCount] = useState(0)

Above you are setting the state array for the variable count and setting the initial value of count to 0 as that is what is put in the parentheses of useState. 

You then can create a function to update state and every time this occurs the count variable will be updated and the page will be re-rendered to show the updated count. See the full example of this below. The starred area is the last piece of the puzzle as discussed above. 

import { useState } from "react"

function Counter() {
  const [count, setCount] = useState(0);

  **function increment() {
    setCount(count + 1);
  }

  return <button onClick={increment}>{count}</button>;
}**
Top 5 Resources to Get Started in Web Developing
Tags: webdev, beginners, tips
Published: 2024-06-20 20:24:41

Are you ready to dive into web development but not sure where to start? I'll guide you through the top 5 essential resources that will kickstart your journey in web development. Whether you're a beginner or looking to enhance your skills, these resources are indispensable.

1.) Mozilla Web Docs: Start with Mozilla Web Docs for foundational knowledge and reference material on essential web development concepts like HTML, CSS, and JavaScript. [https://developer.mozilla.org/en-US/]

2.) Codecademy: Explore Codecademy, an interactive platform offering courses and hands-on practice to sharpen your coding skills in a fun and engaging way. [https://www.codecademy.com/]

3.) r/webdev Subreddit: Join the r/webdev subreddit to connect with a vibrant community of developers. Share ideas, ask questions, and learn from fellow enthusiasts in the field. [https://www.reddit.com/r/webdev/]

4.) CodePen: Use CodePen as your coding playground to experiment with HTML, CSS, and JavaScript in a real-time environment. Test your ideas and showcase your projects effortlessly. [https://codepen.io/]

5.) "The Pragmatic Programmer" Book: Dive deeper into programming principles with "The Pragmatic Programmer" book. Gain insights beyond coding exercises and elevate your understanding of software development. [https://www.amazon.com/Pragmatic-Programmer-journey-mastery-Anniversary/dp/0135957052/ref=pd_lpo_sccl_1/133-8745734-4655528?pd_rd_w=XEuNQ&content-id=amzn1.sym.4c8c52db-06f8-4e42-8e56-912796f2ea6c&pf_rd_p=4c8c52db-06f8-4e42-8e56-912796f2ea6c&pf_rd_r=8Z455CC4AA3JJKYFTVYG&pd_rd_wg=XkrTN&pd_rd_r=66a945e4-f53d-4697-a752-a0763fd8be37&pd_rd_i=0135957052&psc=1]

Whether you're aiming to build websites, apps, or simply expand your coding knowledge, these resources will equip you with the tools and community support needed to succeed. Start your web development journey today with these top 5 resources and discover the endless possibilities of coding. Happy coding!

Follow me on Instagram, X, TikTok, and Youtube @CodeByTEN
Simplifying Python Code with List Comprehensions
Tags: python
Published: 2024-06-20 20:21:36

Python's list comprehensions provide a concise and readable way to perform operations that traditionally use `map`, `filter`, and `zip`. These functional programming tools streamline common tasks on arrays (or lists) while maintaining clarity and efficiency.

#### Using List Comprehensions Instead of `map`

The `map` function applies a specified function to each item in an iterable and returns a new iterable with the transformed items. Here's how you can achieve the same result with list comprehensions:

```python
# Original using map
arr_map = [1, 2, 3, 4, 5]
doubled_arr_map = list(map(lambda x: x * 2, arr_map))

# Equivalent list comprehension
doubled_arr_lc = [x * 2 for x in arr_map]

# Output and comparison
print("Using map:")
print("  Map:", doubled_arr_map)    # Output: [2, 4, 6, 8, 10]
print("  LC: ", doubled_arr_lc)     # Output: [2, 4, 6, 8, 10]
print("  Equal?", doubled_arr_map == doubled_arr_lc)  # Output: True
```

#### Using List Comprehensions Instead of `filter`

The `filter` function constructs an iterator from elements of an iterable for which a function returns true. List comprehensions provide a cleaner alternative:

```python
# Original using filter
arr_filter = [1, 2, 3, 4, 5, 6, 7, 8, 9]
even_arr_filter = list(filter(lambda x: x % 2 == 0, arr_filter))

# Equivalent list comprehension
even_arr_lc = [x for x in arr_filter if x % 2 == 0]

# Output and comparison
print("\nUsing filter:")
print("  Filter:", even_arr_filter)    # Output: [2, 4, 6, 8]
print("  LC:    ", even_arr_lc)         # Output: [2, 4, 6, 8]
print("  Equal?", even_arr_filter == even_arr_lc)  # Output: True
```

#### Using List Comprehensions Instead of `zip`

The `zip` function pairs elements from multiple iterables (arrays) into tuples. List comprehensions simplify this operation as well:

```python
# Original using zip
arr1_zip = [1, 2, 3]
arr2_zip = ['a', 'b', 'c']
zipped_arr_zip = list(zip(arr1_zip, arr2_zip))

# Equivalent list comprehension
zipped_arr_lc = [(x, y) for x, y in zip(arr1_zip, arr2_zip)]

# Output and comparison
print("\nUsing zip:")
print("  Zip:", zipped_arr_zip)    # Output: [(1, 'a'), (2, 'b'), (3, 'c')]
print("  LC: ", zipped_arr_lc)     # Output: [(1, 'a'), (2, 'b'), (3, 'c')]
print("  Equal?", zipped_arr_zip == zipped_arr_lc)  # Output: True
```

### Conclusion

List comprehensions in Python offer a more Pythonic and concise approach to manipulating lists compared to traditional functional programming methods like `map`, `filter`, and `zip`. They enhance code readability and maintainability while reducing the need for lambda functions and explicit looping constructs. By embracing list comprehensions, developers can write cleaner and more efficient Python code for array manipulation.
DEV Computer Science Challenge
Tags: devchallenge, cschallenge, computerscience, beginners
Published: 2024-06-20 20:15:09

_This is a submission for DEV Computer Science Challenge v24.06.12: One Byte Explainer._

## Explainer

Git is versioning control software that lets developers save a version of their code or share code and collaborate with others. A sort of time travel to go back and recover previous work. Git allows devs to recover saved work and return to coding. 

## Additional Context
<!-- Please share any additional context you think the judges should take into consideration as it relates to your One Byte Explainer. -->

Header Image is why you need to use git.


<!-- Thanks for participating! -->
Good Mornning em1fg
Published: 2024-06-20 20:08:44

this one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't that h<img src="https://res.cloudinary.com/dlnuvrqki/image/upload/v1718914019/ix3ffqo20mrw34uasdsd.png" alt="Editor Media" class="mt-4 max-w-xs h-auto mx-auto" style="max-width: 30%;"><div>g</div>
Good Mornning em1
Published: 2024-06-20 20:07:09

this one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't thatathis one is an image this one is an image&nbsp; but that ain't that&nbsp;<div class="skeleton-image mt-4 w-48 h-32 bg-gray-700 animate-pulse mx-auto"></div>
Build a website with Next.js using next/images
Published: 2024-06-20 19:58:04

Creating a website with Next.js and using the next/image component involves several steps. Here’s a step-by-step guide to get you started:

## 1. Setting Up the Project
First, ensure you have Node.js installed on your system. Then, follow these steps:

Step 1: Create a New Next.js Project
```
npx create-next-app@latest my-nextjs-site
cd my-nextjs-site
```

Step 2: Start the Development Server
```
npm run dev
```

## 2. Basic Project Structure
Your project will have a structure similar to this:

```
my-nextjs-site/
├── public/
│   ├── images/
│   │   └── example.jpg
├── pages/
│   ├── _app.js
│   ├── index.js
├── styles/
│   ├── globals.css
├── package.json
├── next.config.js
```

## 3. Using next/image Component
The `next/image` component optimizes images automatically. Here’s how you can use it:

Step 1: Import `next/image` in Your Page
Open pages/index.js and modify it to include the Image component.

```
import Image from 'next/image'

export default function Home() {
  return (
    <div>
      <h1>Welcome to My Next.js Site</h1>
      <Image 
        src="/images/example.jpg" 
        alt="Example Image" 
        width={500} 
        height={300} 
      />
    </div>
  )
}
```
Step 2: Add an Image to the Public Directory
Place your image (e.g., example.jpg) in the public/images directory. Next.js will serve images from this directory.

## 4. Configuring next.config.js for External Images (Optional)
If you plan to use external images, you need to configure the next.config.js file.

Step 1: Create next.config.js (if not existing)

```
module.exports = {
  images: {
    domains: ['example.com'], // Replace with your image source domain
  },
}
```

## 5. Adding Styles
You can style your components using CSS, Sass, or any other styling method supported by Next.js.

Step 1: Modify `styles/globals.css`

```
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

h1 {
  text-align: center;
  margin-top: 50px;
}

div {
  text-align: center;
}
```

## 6. Final Directory Structure
Your directory structure should look like this:

```
my-nextjs-site/
├── public/
│   ├── images/
│   │   └── example.jpg
├── pages/
│   ├── _app.js
│   ├── index.js
├── styles/
│   ├── globals.css
├── package.json
├── next.config.js
```

## 7. Running Your Project
Start the development server again:

```
npm run dev
```

Open your browser and navigate to http://localhost:3000 to see your Next.js site with the optimized image.

## Additional Tips
- Dynamic Imports: Use dynamic imports for components that are heavy or only needed on certain conditions.
- API Routes: Next.js supports API routes which can be used to create backend functionality within the same project.
- Static Site Generation (SSG) and Server-Side Rendering (SSR): Leverage these features for better performance and SEO.


## Conclusion
This guide provides a basic setup for a Next.js project using the next/image component. Depending on your project requirements, you can further expand this setup with more pages, components, styles, and functionality.
Asynchronous Streams in Dart with RxDart
Tags: dart, rxdart, merge
Published: 2024-06-20 19:57:19

In Dart programming, handling asynchronous data streams effectively is crucial, and RxDart simplifies this task with powerful tools. Let's explore a straightforward example using RxDart to merge and manage multiple streams.

### The Example Explained

```dart
import 'package:rxdart/rxdart.dart';

void main() {
  // Creating two periodic streams
  var stream1 = Stream.periodic(Duration(seconds: 2), (n) => 'Stream 1: $n').take(3);
  var stream2 = Stream.periodic(Duration(seconds: 3), (n) => 'Stream 2: $n').take(3);

  // Merging streams using RxDart's MergeStream
  var mergedStream = MergeStream([stream1, stream2]);

  // Subscribing to the merged stream
  var subscription = mergedStream.listen((value) {
    print("Merged Value: $value");
  });

  // Cancelling the subscription after 10 seconds
  Future.delayed(Duration(seconds: 10), () {
    subscription.cancel();
  });
}
```

### What's Happening Here?

1. **Imports and Setup**:
   - `import 'package:rxdart/rxdart.dart';` brings in RxDart library for reactive programming.

2. **Creating Streams**:
   - `Stream.periodic(Duration(seconds: 2), (n) => 'Stream 1: $n').take(3);` defines `stream1` to emit "Stream 1: 0", "Stream 1: 1", "Stream 1: 2" every 2 seconds.
   - `Stream.periodic(Duration(seconds: 3), (n) => 'Stream 2: $n').take(3);` defines `stream2` to emit "Stream 2: 0", "Stream 2: 1", "Stream 2: 2" every 3 seconds.

3. **Merging Streams**:
   - `MergeStream([stream1, stream2]);` combines `stream1` and `stream2` into `mergedStream`, ensuring all values are processed together.

4. **Subscribing to the Merged Stream**:
   - `mergedStream.listen((value) { print("Merged Value: $value"); });` sets up a listener to print each merged value prefixed with "Merged Value:".

5. **Cancellation**:
   - `Future.delayed(Duration(seconds: 10), () { subscription.cancel(); });` ensures that after 10 seconds, the subscription to `mergedStream` is canceled, managing resources effectively.

### Why It Matters

Using RxDart simplifies managing asynchronous data streams in Dart. By merging streams and handling subscriptions efficiently, developers can build responsive applications that handle real-time data updates seamlessly. Whether you're dealing with user interactions, network responses, or periodic updates, RxDart's intuitive API provides the tools needed for robust stream management.

### Conclusion

This example highlights how RxDart empowers Dart developers to harness the power of reactive programming. By merging and managing asynchronous streams effectively, developers can create more responsive and scalable Dart applications. Whether you're new to reactive programming or looking to enhance your asynchronous data handling, RxDart offers a straightforward yet powerful solution.
Build RESTful APIs with Express.js 🚀
Published: 2024-06-20 19:28:01

Hey your instructor #KOToka here....

1. Setup:
   - Install Node.js & npm.
   - Initialize: `npm init`.
   - Install Express: `npm install express`.

2. Basic Server:
   ```javascript
   const express = require('express');
   const app = express();
   const port = 3000;

   app.get('/', (req, res) => res.send('Hello World!'));

   app.listen(port, () => console.log(`Server running at http://localhost:${port}`));
   ```

3. Define Routes:
   - Use `app.get()`, `app.post()`, `app.put()`, `app.delete()`.

4. **Middleware**:
   ```javascript
   app.use(express.json());
   ```

5. CRUD Operations:
   - Implement Create, Read, Update, Delete endpoints.

6. Test:
   - Use Postman or Insomnia to test endpoints.

Create robust, scalable APIs with Express.js! Happy coding! 💻✨ #ExpressJS #RESTfulAPI #NodeJS #WebDev
Practical Steps to Enhance Your Security Today
Tags: security, sdlc
Published: 2024-06-20 19:21:47

## Introduction

In the ever-evolving landscape of cybersecurity, numerous frameworks are available to measure maturity and guide improvements, such as OWASP SAMM, Microsoft's SDL (Security Development Lifecycle), and the NIST Cybersecurity Framework (CSF). These frameworks offer comprehensive guidelines but can sometimes be overwhelming for organizations looking for a quick, pragmatic approach to enhance their security posture.

Having worked with complex government solutions that require high standards for confidentiality, integrity, and availability, I understand the importance of robust security measures. If you don't have a systematic approach today, following these steps can take your security light years ahead, setting the stage for adopting a more formal framework in the future.

## A Hands-On Approach to Jump-Start Your Security Today

If you're looking to take immediate, pragmatic steps towards improving your security, here’s a streamlined approach:

1. **Identify Your Assets**: List your assets, including data, systems, networks, and personnel.

2. **Conduct a Risk Analysis**:
   - **Probability**: Estimate the likelihood of threats exploiting vulnerabilities.
   - **Consequence**: Determine the potential impact of these threats.

3. **Implement Measures to Mitigate Risks**: Apply security controls, update software, train employees, and establish policies to reduce risks.

4. **Prioritize by Cost and Effectiveness**:
   - Order the cost of implementing measures.
   - Define the effectiveness of each measure to prioritize actions with the greatest return on investment.

5. **Focus on Quick Wins**: Target measures that can be implemented quickly and at a low cost but have a significant impact. Often, 80% of your desired improvements can be achieved with 20% of the effort.

### Conclusion

By following this pragmatic, hands-on approach, you can quickly and effectively enhance your organization's security posture. Comprehensive frameworks like OWASP SAMM, SDL, and NIST CSF provide extensive guidance, but focusing on immediate, practical steps allows you to make meaningful improvements without getting bogged down in complexity. Remember, the goal is to make significant strides in security with manageable effort, setting a strong foundation for future enhancements.
Vasily Mesheryakov, main promoter of Freewallet scam
Published: 2024-06-20 19:18:52


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/nsmi3ywgjxak8ugbkp28.jpg)

Alvin Hagg, the co-founder and CEO of Freewallet.org, has long shunned the spotlight. However, our recent investigation has unveiled a shocking truth: the real masterminds behind the Freewallet scam are two Russian immigrants, deeply involved in another fraudulent cryptocurrency venture, Cryptopay. Among them, Vasily Mesheryakov stands out as the primary PR manager orchestrating these scams.

Freewallet is promoted as a secure multi-currency wallet, but numerous reviews expose it as a major scam. Many users have lost their savings due to blocked or failed transactions. Similarly, Cryptopay, a payment and exchange service, entices victims with low fees, only for them to discover that they cannot withdraw their assets. Our findings reveal that both Freewallet and Cryptopay share the same ownership and employ identical fraudulent tactics.

Dmitry Gunyashov, another key figure, is believed to be at the helm of these operations, despite lacking experience in legitimate business management. His expertise lies in orchestrating scam operations while evading legal repercussions. The scheme is simple: clients create accounts, deposit funds, and then find their accounts blocked, leaving them unable to access their assets.

Mesheryakov's role is critical in maintaining the façade of legitimacy through aggressive marketing and buying positive reviews. His activities extend beyond Cryptopay and Freewallet, involving other ventures like Dioram.

For more information on Vasily Mesheryakov and to find contact details, visit https://vasily-mesheryakov.com/. Join us in holding these scammers accountable and help bring justice to the victims of these fraudulent schemes. If you have any additional information, please contact us at Freewallet-report@tutanota.com.
Differences Between Slice and Splice : javascript
Tags: javascript, webdev, frontend, programming
Published: 2024-06-20 19:17:20


In Javascript slice and splice are used to manipulate Array, both sound a little bit the same but they work differently, first let’s talk about slice

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/b7y6ummc4m34mbg2bbqv.png)

**slice** method used cut out some portion from the array or extract sub-array but it don’t change the origin array instead return new updated array of extracted sub-array as you can see in above example

it takes two argument first starting index , second ending index . The ending index default value is length of its original array if you don’t pass the ending index.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pk9sjbyaeyepm7qy0m9e.png)

**splice** method use to remove and add values in the array , but it don’t create new array like splice instead it changed the original array as you can see above example

it take three argument first : starting index , second : number of values to be remove , here is a point to be noted its second argument is not ending index but the length of value you want to delete from the array , third: value needs to be added in replacement of removed values

**conclusion**: both used manipulate array , slice extract sub-array and create new array of extracted value it don’t changed original array and splice add and remove array values but changed original array.
ANIXSOFT
Tags: webdev, programming, react, ai
Published: 2024-06-20 19:14:22

**Our domain goes like:
IOS mobile apps, Android apps
, HTML5, PHP5, MySQL, postgresql, CakePHP, CodeIgnitor, Laravel, React Js, Angular Js & Node Js
Please visit our site https://www.anixsoft.co.in and visit our PORTFOLIO section, to view our latest works.
Our latest work (ongoing development) with angular 9 in front end and laravel in the service/API end is app.saaaitech.com & vuemotion.ai  Please visit our youtube channel  https://www.youtube.com/channel/UCnmKWHxC54oxPn7LWlS2SWg
To view our work in AI and mobile apps
**