teleren/devto huggingface dataset:
Python - Greedy Algorithms for Optimization Problems
Tags: python, programming, tutorial, algorithms
Published: 2023-12-12 15:30:00

Greedy algorithms are helpful for solving optimization problems by making a series of locally optimal choices that lead to a globally optimal solution. In each step, they pick the best available option without considering the consequences of future choices. While they don't guarantee the absolute best solution, they often provide fast and acceptable solutions. Here's an example:

**Example - Greedy Algorithm for the Fractional Knapsack Problem in Python:**

```python
def fractional_knapsack(items, capacity):
    # Sort items by their value-to-weight ratio in descending order
    items.sort(key=lambda x: x[1] / x[0], reverse=True)

    total_value = 0
    remaining_capacity = capacity

    for item in items:
        if remaining_capacity >= item[0]:
            total_value += item[1]
            remaining_capacity -= item[0]
        else:
            total_value += (remaining_capacity / item[0]) * item[1]
            break

    return total_value

# Example usage:
items = [(2, 10), (3, 5), (5, 15), (7, 7), (1, 6)]
knapsack_capacity = 10
max_value = fractional_knapsack(items, knapsack_capacity)
print(max_value)
```

In this example, we use a greedy algorithm to solve the Fractional Knapsack problem. Given a set of items with weights and values, the goal is to select items to maximize the total value while not exceeding a certain weight limit (knapsack capacity). The algorithm sorts the items by their value-to-weight ratio and selects items greedily, maximizing the total value within the capacity constraint.

Greedy algorithms are particularly useful when a problem exhibits the greedy-choice property, which means that making a locally optimal choice at each step leads to a globally optimal solution. However, it's important to note that not all problems can be solved optimally using a greedy approach, so careful analysis is required to determine when it's appropriate to use this technique.
JS - Developer Skills (Guess game)
Published: 2023-12-12 15:28:45

Apart from console.log() we have console.warning() an console.error() used to raise a warning and error respectively.

**_<u>Debugger</u>_**

```
debugger;
```
A debugger window gets opened and after this line whatever is written the debugger stops at every line and we have manually make the code move to subsequent line.


**_<u>CSS</u>_**

To link a css file with html file ->
In html file ->

<link href = "cssFileName" rel = "stylesheet"/>

-> To change a general element like para use p:{}
-> To set properties for a class name -> .{class_name} {...}
-> To set properties for a id name -> #{id name} {...} 


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tda3dlausbyzj95sqqmf.png)


To change a style element -> 
With **class **name of an element ->

```
#Syntax ->
document.querySelector('.{class_name').attribute= 'value'

document.querySelector('.message').testContent = 'Correct Answer';
```

one more attribute is **value**

**_<u>Onclick Event</u>_**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/2so3nrytmrhd63zfo09v.png)

the function alongside onclick is basically called as and when there is a click operation. 
The **!guess** condition checks whether the user didn't enter any value and has clicked the button then in that case the gam window's **message** class displays that text.

**Output**



**_<u>State Variable</u>_**


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gf8124cvmr9injxvtogp.png)



![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pwbubh3c3zo9mb9ypb64.png)

Variable which is part of the application state.
In this context **score **is a state variable.


Functionality ->
Whenever we guess correct answer background goes green and the **?** box gets wider ->

To target the entire page element which we have to use -> **body**.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oxzntoe1g3c355npyg7m.png)



![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/988ijpfw6w86pvhywacs.png)

**_<u>Again !</u>_**

It resets the window

**_<u>HighScore</u>_**

It sets the highscore to the highest score so far.

**_<u>Removing recurring code using optimization techniques </u>_**
The high and low code being almost same except for the message -> modify that.
What are the most effective methods for PPC advertising?
Tags: career, digitalmarketin, bestmarketingagency, advertising
Published: 2023-12-12 15:21:42

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1wrmuiy9ep3on60e00sg.jpg)

**1.** **Versatile Advertising Approach:** PPC [marketing](https://digitalshivanshi.in/) proves dynamic and influential for businesses of all sizes, including small enterprises.

**2.** **Driving Traffic and Quality Leads:** Its primary strength lies in elevating website traffic and generating high-quality leads, significantly boosting [online visibility](https://digitalshivanshi.in/seo/).

**3.** **Precision in Campaign Execution:** Successful [PPC ](https://digitalshivanshi.in/google-ads/)campaigns demand meticulous planning and precise execution, utilizing diverse ad formats like text, images, and videos.

**4.** **Multi-Platform Utilization:** Ads are strategically placed across various platforms such as search engines, websites, and [social media](https://digitalshivanshi.in/social-media-marketing/) to maximize impact.

**5.**** **Search Engine Advertising:**** Within PPC, search engine advertising allows advertisers to compete for sponsored link placement when users search for relevant business offerings.

For more details, visit: https://digitalshivanshi.in/
Criando um componente para validar o status da senha do usuário
Published: 2023-12-12 15:19:08

Existem várias maneiras de validar se a senha do usuário está seguindo boas práticas. Uma delas é simplesmente pintar o input de vermelho e assustar o usuário, enquanto outra é mostrar o que ele precisa fazer e deixar claro o caminho para resolver o problema.

Com esse pensamento, criei um componente separado que pode ser acoplado a qualquer outro input, desde que ele tenha as mesmas validações do input original.

```
const PasswordCheckStatus = ({ password }: { password: string }) => {
  const hasUpper = /[A-Z]/.test(password);
  const hasSpecial = /[\W_]/.test(password);
  const hasNumber = /[0-9]/.test(password);

  const percentage = (hasUpper ? 33.3 : 0) + (hasSpecial ? 33.3 : 0) + (hasNumber ? 33.3 : 0);

  if (!password) {
    return null;
  }

  return (
    <div className="w-full bg-slate-200 h-[2px]">
      <div
        className={cn('h-full bg-slate-500 transition-all', {
          'bg-red-500': percentage < 60,
          'bg-yellow-500': percentage >= 60 && percentage < 80,
          'bg-green-500': percentage >= 80
        })}
        style={{ width: `${percentage}%` }}></div>
    </div>
  );
};
```
E assim ficou o código. A validação é a mesma que será utilizada no input. Usei regex e Tailwind para o estilo.

E como mencionei, utilizei-o como uma dependência do input.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jg6wugw5oy3l1mdj85bu.png)
Angular 17: Overcoming SSR Challenges Of The New 'application' Builder 🔎
Tags: webdev, angular, ssr
Published: 2023-12-12 15:18:47

The new Angular builder introduced in version 17, named [`application`](https://angular.io/guide/esbuild#using-the-application-builder), consolidates separate builders for CRS, SSR, and SSG into a single entity. This becomes the default choice when creating a new application.

Unfortunately, for applications with SSR, changes to the `server.ts` file, which contains the server implementation, are not reflected when running `ng serve`. This is cumbersome if you have some custom providers for your application specific for the server side. The same when comes to custom logic that depends on the request/response. In developer mode, these changes simply won't work.

As a workaround, you can run `watch` script for re-building your app on changes made in code and in the separate terminal, serve `server.mjs` file with flag `--watch` to be eager to changes in `dist` folder. It can be achievable by small adjustment in `package.json`:
```diff
"watch": "ng build --watch --configuration=development",
- "serve:ssr:<your-app-name>": "node dist/<your-app-name>/server/server.mjs"
+ "serve:ssr:<your-app-name>": "node --watch dist/<your-app-name>/server/server.mjs"
```

You can try this suggestion or switch back to previous  builders: `browser`, `server` and `ssr-dev-server` - they are still supported, but by choosing them you'll lost advantages of `esbuild` .

There is a [GitHub issue](https://github.com/angular/angular-cli/issues/26323) in Angular-CLI repository describing mentioned issue. Don't hesitate to share your thoughts and leave there :+1: reaction - let Angular Core team know about our struggles :)
Day 97: Typed Effect
Tags: webdev, frontend, angular, react
Published: 2023-12-12 15:18:39

## Question
Create React or Angular code snippet that implements typed effect as below


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/wa8z0bwdnj9z2jvlhfjm.gif)


**Hint:** Use an array to store multiple strings, and modify the JavaScript to type each string one after the other, with a brief pause in between.

Check the comment below to see answer.
Developer Nation Meme Competition!
Tags: programming, beginners, developers, news
Published: 2023-12-12 15:14:18

Developer Nation **Meme Competition** is here! Are you ready to win big?

Join the Developer Nation meme challenge and win Amazon vouchers.
Check out how: 

1. Use one of the templates below and create your original developer humour memes (you can submit multiple ones).
2. You can add text in the image or in the caption for your entry to be valid.
3. Share your creation as a comment below.


The deadline is December 19 11:59 PM GMT.
We will feature all memes in the Developer Nation forum as well as in the Developer Nation Newsletter with attribution to their creators. 
Winners will be announced on December 21!

**Templates:**

![template1](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gibr3i2eer7dg5phnaxv.png)

![template2](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ii5zj2z5w59e6rclrte6.jpg)


**Examples:**

![example1](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/p20dco70kez4drywfr67.png)
![exqample2](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/e3ik7zgiu8eqntd62ytp.png)

The best 3 ideas win $150, $100, $50 Amazon or equivalent Gift Cards!  
**Good Luck!**
Progress Blog: Resolving Stylex Compilation Error in Next.js Project
Published: 2023-12-12 15:11:04

Hi everyone,👋🏻

**Progress Update**
1. Identifying the Root Cause
We began our journey by attempting to replicate the compilation error in a controlled environment. This step is crucial to understanding the conditions leading to the error. Simultaneously, we meticulously analyzed the error messages and stack traces to pinpoint the source of the problem within the stylex.create() calls.

2. Temporary Workaround Implementation
To ensure the smooth continuation of our project, i implemented a temporary workaround. This involved modifying affected components to use a function that returns the style object instead of passing an object directly to stylex.create(). 

```
// Temporary Workaround
export const styles = stylex.create({
    container: () => ({
        backgroundColor: staticColors.colorsBaseWhite,
    }),
});
```

3. Rigorous Testing
Thorough testing of the temporary workaround is essential. I am conducting comprehensive tests in various scenarios to ensure the reliability and effectiveness of the solution is better.

**Conclusion**
Committed to resolving this compilation error promptly and maintaining the momentum of our Next.js project. Your patience and collaboration are greatly appreciated as I work towards a solution. Stay tuned for further updates, and feel free to reach out with any questions or insights. Happy coding!🧑🏼‍💻
Shree Samarth Narayan Multi speciality Hospital
Tags: samarthnarayanhospitaldhule
Published: 2023-12-12 15:07:23

Shree Samarth Narayan [Multispeciality Hospital in Dhule](https://samarthnarayanhospital.com) that provides a wide range of medical services. Our highly-qualified doctors and staff are committed to delivering excellent healthcare services by offering expert care and treatments in specialties such as Neurology, Orthopedic, Urology, Gynaecology, Cardiology, Gastroenterology, and more. We are dedicated to providing our patients with the highest level of care, with a focus on patient satisfaction.
export requirements.txt from Pipfile
Tags: python, pipenv, アドベントカレンダー
Published: 2023-12-12 15:01:00

---
title: export requirements.txt from Pipfile
published: true
published_at: "2023-12-13 00:01 +0900"
tags: ["python", "pipenv", "アドベントカレンダー"]
---

これは [.ごっ！のアドベントカレンダー](https://adventar.org/calendars/9122) の13日目の記事です。

`Pipfile.lock` ファイルから `requirements.txt` ファイルを生成する方法は以下のコマンドを実行します。

```sh
$ pipenv requirements > requirements.txt
```

開発モジュールを含める場合は `--dev` オプションも付けます。

```sh
$ pipenv requirements --dev > requirements.txt
```

{% embed https://pipenv.pypa.io/en/latest/pipfile.html#pipfile-lock-security-features %}
How to preload images in HTML and CSS
Tags: webdev, beginners, tutorial, html
Published: 2023-12-12 14:53:14

I figured out a way to preload images in html and css. I have used this for stuff like buttons that have multiple different images (for when it is clicked vs not being clicked). A lot of the time, you will click on the button then it will take a second to load the background.

**How to do it:**

In your html, create a <div> with the class of hidden.
Put img tags with the srcs of all of the images you want to load within that <div>.

For example:

```
<div class="hidden">
  <img src="images/open_button_click.jpg" alt="">
</div>
```

**The CSS:**

Paste this into your CSS:

```
.hidden {
  position:fixed;
  bottom:0px;
  left:0px;
  pointer-events: none;
  opacity:0%;
}
```

What this does is hide the elements visually then makes it so they don't affect anything else on your page.

That's all I wanted to keep this simple.
The Cleanest Way to Support Dark Mode using CSS Variables and Tailwind
Published: 2023-12-12 14:48:36

### Intro
To support dark mode with Tailwind, you would usually write something like this according to the docs. 

```html
<div className="bg-black dark:bg-white">
  <p className="text-white dark:text-black">text</p>
</div>
```


This makes your already-long tailwind classes become even longer.

To fix this, we can use semantic colors and change colors dynamically based on the current theme. (semantic colors mean colors that are named based on their purposes, like `success`, `warning`, `background`, and `primary`)

### Steps
In index.html, make sure you can toggle the class dark.
When dark mode is on.
```
<html class="dark" />
```
When dark mode is off.
```
<html />
```
Note: In a real project, you might want to detect the user preference using `window.matchMedia("(prefers-color-schema: dark));`

In your `globals.css` or any css files
```css
:root {
    --color-foreground-primary: black;
    --color-background-primary: white;
}

.dark {
    --color-foreground-primary: white;
    --color-background-primary: black;
}
```
By adding this, the variables will dynamically change when the website is in dark mode.


And in `tailwind.config.js`.

```js
...
theme: {
    extend: {
      colors: {
        foreground: {
          primary: "var(--color-foreground-primary)",
        },
        background: {
          primary: "var(--color-background-primary)",
        },
      },
    },
  },
...
```
Now, in your html, you can do the following.

```html
<div className="bg-background-primary">
  <p className="text-foreground-primary">text</p>
</div>
```


Hope this is useful to you.

Let me know how you support dark mode in your projects!
Vue js 3 form validation using Simple Vue Validator || izitoast || Vue js 3 tutorial Part - 2
Tags: javascript, vue, webdev
Published: 2023-12-12 14:46:44

[Vue js 3 form validation using Simple Vue Validator || izitoast || Vue js 3 tutorial Part - 2](https://www.youtube.com/watch?v=HSFurbJOGxo&t=1s)
 
Learn how to implement robust form validation in Vue.js 3 using Simple Vue Validator. This comprehensive Vue.js 3 tutorial covers step-by-step instructions on integrating Simple Vue Validator for seamless form validation. Discover the power of izitoast for enhancing user experience and getting real-time feedback. Elevate your Vue.js 3 skills with practical examples and tips. Watch this tutorial now to master form validation and create dynamic, error-free Vue.js applications!

🚀 Key Highlights:
Learn the step-by-step process of Vue.js 3 project setup.
Explore best practices for organizing your Vue.js project files efficiently.
Integrate a simple and effective Vue Validator for form validation.
Enhance user experience with izitoast notifications in your Vue.js application.

📂 File Structure Overview:
Understand the importance of a well-organized file structure.
Dive into the details of structuring components, assets, and more.

⚙️ Vue Validator Implementation:
Implement a straightforward Vue Validator for seamless form validation.
Discover tips and tricks for handling user input validation with Vue.js.

🌐 izitoast Notification Integration:
Elevate your user interface with izitoast notifications.
Integrate and customize izitoast for informative and visually appealing alerts.

👩‍💻 Who is this for?
Beginners looking to kickstart their Vue.js journey.
Developers aiming to enhance their Vue.js project organization skills.
Anyone interested in adding form validation and notifications to Vue.js applications.

🎓 Watch Part 1 and Level Up Your Vue.js Skills!
Don't forget to like, share, and subscribe for more Vue.js tutorials. Stay tuned for upcoming parts in this series, where we'll delve deeper into advanced Vue.js concepts.

🔗 Links
Vue.js Documentation :https://vuejs.org/
izitoast : https://izitoast.marcelodolza.com/
Vue Validator : https://simple-vue-validator.netlify....

📌 Timestamps
Part 1 - Project Setup & File Structure
Part 2 - Vue Validator
Part 3 - izitoast Notifications
 

#VueJS #WebDevelopment #Tutorial #Vue3 #JavaScript #frontenddevelopment 

🚨 Stay Connected
Facebook: facebook.com/minit61  
GitHub: https://github.com/Minhazulmin
Website: https://minhazulmin.github.io

Thanks for watching! Happy coding! 💻🎉
Guard Clauses in C#
Published: 2023-12-12 14:38:45

Guard Clauses in C# are a powerful and efficient way to validate input parameters and quickly exit a method if the conditions are not met. They act as a form of defensive programming, ensuring that invalid or unexpected values do not propagate through the code.

A guard clause consists of a conditional statement with a specific condition that must be met. If the condition evaluates to true, indicating invalid input, the method immediately returns or throws an exception, eliminating the need to execute the rest of the code.

These clauses are particularly beneficial in reducing code complexity and increasing readability. By placing guard clauses at the beginning of a method, developers can quickly identify the expected conditions and improve code maintainability. Additionally, guard clauses help prevent bugs by catching potential issues early on.

An example of a guard clause in C# could be checking if a method's parameter is null. Instead of performing unnecessary computations inside the method if the parameter is null, a guard clause can be used to handle this case at the beginning and return or throw an exception immediately.

In summary, guard clauses are a valuable tool in C# development for validating input parameters and ensuring data integrity. By putting these clauses at the beginning of methods, developers can enhance code robustness, code readability, and ultimately deliver more reliable software.
Celebrating 1000 Followers on Dev.to 🎉
Tags: milestone, news, learning, development
Published: 2023-12-12 14:00:00

## 🚀 Milestone Unlocked: 1000 Dev.to Followers!

I am thrilled to share this incredible moment with all of you—my Dev.to family. Today marks a significant milestone in my journey as a content creator, as we hit a magical number: 1000 followers! 🌟

## 🙌 Gratitude Overflowing

A heartfelt thank you to each and every one of you who has supported, encouraged, and engaged with my posts. Your comments, likes, and shares have not only motivated me but have also created a sense of community that makes Dev.to truly special.

## 🌐 Connecting Minds Worldwide

Dev.to has been more than just a platform for me; it's a global space where minds converge, ideas flow, and knowledge transcends borders. The diversity of perspectives and the wealth of expertise within this community inspire me daily.

## 📝 Reflecting on the Journey

As I look back on the journey to 1000 followers, I am reminded of the valuable lessons learned, the challenges overcome, and the joy found in sharing knowledge. Each interaction, whether it was a question, a suggestion, or a simple thumbs up, has contributed to the growth of this virtual space.

## 🚪 Doors Opening, Networks Expanding

The beauty of reaching this milestone is not just in the number itself but in the doors it opens. I am excited about the potential for even more meaningful connections, collaborations, and discussions that lie ahead.

## 📈 From 0 to 1000: A Numeric Tale

From that first post with no likes to this moment with a four-digit follower count, the journey has been nothing short of exhilarating. It's a testament to the power of persistence, passion, and the wonderful support from the Dev.to community.

## 🌈 Diverse Perspectives, Shared Passion

What makes this achievement truly special is the diverse group of individuals who make up the 1000. We come from different corners of the world, with varied experiences and expertise, yet we share a common passion for technology, coding, and the Dev.to community.

## 🎨 A Canvas of Ideas

Dev.to is more than just a platform; it's a canvas where ideas are painted, discussions crafted, and knowledge sculpted. Each follower adds a new brushstroke to this vibrant masterpiece, making it a collaborative work of art.

## 🤝 Community Power

This achievement is not just about me; it's about us—a collective of minds shaping the future of technology and knowledge-sharing. Let's continue to amplify our community power and make Dev.to a hub of inspiration for aspiring developers.

## 🎊 Thank You, Dev.to Family!

In conclusion, thank you for being a part of this amazing journey. Here's to the next thousand followers, new discoveries, and countless moments of inspiration. Cheers to the Dev.to family! 🥂