teleren/devto huggingface dataset:
The Aesthetic Beauty of the Haskell Programming Language
Tags: haskell
Published: 2024-07-06 10:19:11

Haskell is renowned for its elegant aesthetics and ability to express complex concepts in a concise and readable manner. Developed in the 1990s, this language emphasizes functional purity and the use of functions without side effects, contributing to clear and predictable programming.

#### Functional Purity

Functional purity is one of the cornerstones of Haskell's aesthetics. In Haskell, every function is pure, meaning its result depends solely on its inputs and has no side effects. This makes the code predictable and facilitates logical reasoning, enhancing software maintainability and safety.

#### Elegant and Concise Syntax

Haskell is known for its elegant and concise syntax. For example, the definition of the Fibonacci sequence can be expressed very compactly:

```haskell
fibs = 1 : 1 : zipWith (+) fibs (tail fibs)
```

This definition uses recursion and infix notation to create an infinite sequence of Fibonacci numbers. The simplicity and clarity of this expression are often praised for their aesthetic beauty.

#### Strong Typing

Haskell's type system is powerful and contributes to the language's beauty. Static typing allows many errors to be caught at compile time, improving the security and robustness of the code. Type declarations are often seamlessly integrated with the code, making it clear and self-documenting.

#### Lazy Evaluation

Lazy evaluation is another distinctive aspect of Haskell that contributes to its aesthetics. In Haskell, expressions are not evaluated until they are needed. This approach allows working with infinite data structures and improves program efficiency while maintaining clean and readable code. Lazy evaluation facilitates the definition of functions that operate on potentially infinite lists, making the code more flexible and concise.

#### Community and Resources

The Haskell community values the language's aesthetics and promotes good programming practices through educational resources like "Learn You a Haskell for Great Good!" and other online guides. These tools help newcomers understand and appreciate Haskell's beauty, making learning more accessible and enjoyable.

For more information, you can refer to the following resources:
- [Learn You a Haskell for Great Good!](https://learnyouahaskell.github.io)
- [Code With C - Haskell: The Purely Functional Programming Language](https://www.codewithc.com)
- [Haskell Programming - haskell.dev](https://haskell.dev)
Thiết Kế Website Kiến Trúc Độc Đáo, Đẹp Mắt
Published: 2024-07-06 10:01:06


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tteeq9use9ekwd04je6c.jpg)
[Thiết kế website kiến trúc](https://terusvn.com/thiet-ke-website-tai-hcm/) là một yếu tố quan trọng để giúp doanh nghiệp kiến trúc có thể nhanh chóng đem các dự án mới đến với khách hàng. Một website kiến trúc hiệu quả cần chú ý đến các yếu tố như tên miền, hosting, thiết kế giao diện, nội dung và tính năng responsive.

Về các tiêu chuẩn của website kiến trúc, trước hết cần chú trọng vào việc thay đổi giao diện sao cho thể hiện được tính thẩm mỹ và chuyên nghiệp. Bên cạnh đó, các tiêu chuẩn SEO thân thiện với công cụ tìm kiếm cũng phải được tuân thủ khi thiết kế website, đảm bảo khách hàng tiềm năng dễ dàng tìm thấy doanh nghiệp.

Về các tính năng chính của website kiến trúc, gồm có trang chủ để giới thiệu tổng quan, trang giới thiệu về doanh nghiệp và đội ngũ, cũng như trang trưng bày các sản phẩm/dự án kiến trúc.

Những điểm nổi bật trong [dịch vụ thiết kế website kiến trúc](https://terusvn.com/thiet-ke-website-tai-hcm/) của Terus, trưng bày danh mục đầu tư, gắn dịch vụ và chuyên môn vào trang chủ, giới thiệu về đội ngũ, đưa ra các nghiên cứu điển hình và câu chuyện thành công, thể hiện triết lý và lý tưởng làm việc, xây dựng hệ thống blog/tài nguyên, và thiết kế responsive.

Terus còn cung cấp dịch vụ thiết kế website kiến trúc theo các mẫu sẵn có, giúp doanh nghiệp kiến trúc có thể nhanh chóng xây dựng được website chuyên nghiệp và hiệu quả.

Đây là những thông tin hữu ích cho các doanh nghiệp kiến trúc muốn xây dựng một website hiệu quả để thu hút và phục vụ khách hàng. Tìm hiểu thêm về [dịch vụ thiết kế website kiến trúc](https://terusvn.com/thiet-ke-website/terus-thiet-ke-website-kien-truc/) tại Terus

Digital Marketing:

·        [Dịch vụ Facebook Ads](https://terusvn.com/digital-marketing/dich-vu-facebook-ads-tai-terus/)

·        [Dịch vụ Google Ads](https://terusvn.com/digital-marketing/dich-vu-quang-cao-google-tai-terus/)

·        [Dịch vụ SEO Tổng Thể](https://terusvn.com/seo/dich-vu-seo-tong-the-uy-tin-hieu-qua-tai-terus/)

Thiết kế website:

·        [Dịch vụ Thiết kế website chuẩn Insight](https://terusvn.com/thiet-ke-website/dich-vu-thiet-ke-website-chuan-insight-chuyen-nghiep-uy-tin-tai-terus/)

·        [Dịch vụ Thiết kế website](https://terusvn.com/thiet-ke-website-tai-hcm/)
Best interiors in Chennai
Tags: react, learning
Published: 2024-07-06 09:43:44

The [best interiors in Chennai](https://interiorjumbo.com/residential.php) are specialists in creating efficient and stylish kitchen spaces. They understand the importance of functionality, organization, and aesthetics in the heart of a home. These designers employ a modular approach, utilizing pre-made units and components to customize kitchens according to the client's needs. Through the use of their knowledge in [modular kitchen Chennai](https://interiorjumbo.com/modular.php), they turn kitchens into practical work areas that maximize storage, enhance workflow, and radiate elegance, making cooking and entertaining enjoyable.
How to Install Homebrew on Ubuntu
Tags: brew, homebrew, ubuntu, webdev
Published: 2024-07-06 09:30:45

## How to Install Homebrew on Ubuntu

Homebrew, originally designed for macOS, is also available for Linux and offers a convenient way to install various packages. Follow these steps to install Homebrew on your Ubuntu system.

### Step 1: Update Your System

First, ensure your system is up to date:

```bash
sudo apt update
```

### Step 2: Install Prerequisites

Install the necessary developer tools and libraries:

```bash
sudo apt install build-essential procps curl file git
```

### Step 3: Install Homebrew

Run the following command to download and install Homebrew:

```bash
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
```

### Step 4: Configure Homebrew

After installation, add Homebrew to your PATH and configure your shell:

```bash
echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' >> ~/.profile
eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
```

### Step 5: Verify Installation

To confirm Homebrew is installed correctly, run:

```bash
brew --version
```

### Step 6: Install a Package

You can now use Homebrew to install packages. For example, to install the `hello` package, run:

```bash
brew install hello
```

### Updating and Uninstalling

To update Homebrew, use:

```bash
brew update
```

To uninstall Homebrew, run the uninstall script:

```bash
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh)"
```

### Additional Tips

- Use `brew doctor` to troubleshoot any issues.
- Install packages using `brew install <package-name>`.
- Upgrade packages with `brew upgrade <package-name>`.
- Uninstall packages using `brew uninstall <package-name>`.

By following these steps, you can efficiently manage software on your Ubuntu system using Homebrew. For more detailed instructions and troubleshooting, refer to the [official Homebrew documentation](https://docs.brew.sh/Homebrew-on-Linux)【18†source】【19†source】【20†source】.
Ecommerce Website Development Company | Embark Interactive
Published: 2024-07-06 09:24:16

**Ecommerce Service:**
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/yosdzvhvujxa2steatr8.png)

**ECOMMERCE FOR STARTUPS**
 
E-Commerce models like drop-shipping and white-labeling are hot businesses for startups. The key to success is to identify and work diligently with niche customer segments

**E-COMMERCE FOR RETAILERS**
 
For brick and mortar retailers, E-Commerce is an act just a temporary fix during an unprecedented global event, but a long-term strategy to thrive on success by reaching a much wider audience.

**E-COMMERCE FOR MANUFACTURERS**
 
Digital Commerce opens new opportunities for manufacturers across all industries. Embrace DTC (direct-to-consumer) business model with a mix of non-linear and offline touch points for distribution

**B2B ECOMMERCE**
 
We well thought B2B commerce strategy will deliver a convenient and informative online buying experience for your B2B customers, making you their go-to supplier

**Contact Details**

Business Name: Embark Interactive Private Limited
Email : embarkinteractive.com@gmail.com
Address : P401, KK Nagar East 9th Street, 
Madurai - 625020
Mobile:	8778473881
[Website](https://embarkinteractive.com/)
What is the difference between a deep copy and a shallow copy in JavaScript?
Tags: javascript, webdev, programming, react
Published: 2024-07-06 09:12:34

## Deep Copy And Shallow Copy:
Sometimes we need to copy the value from one variable to another variable is known as copy. But when we are copying the value from one variable to another variable that means we are copying the reference of that variable, which means we are not creating the new variable for that just assigned the reference of the variable.


So when we made the changes on the copied variable object/ array it also gets changes on the original variable value, which is known as Shallow Copy if when are any changes on the copied variable then not getting any changing the original variable values are known as Deep Copy


Example: how to make the deep copy and shallow copy:

```
//original
  var userObj = {
    name: "Jhon",
    address:{
      City: {
        name: "Noida"
      }
    }
  }
  
  //wanted to copy
  var copyUserObj = userObj; // shallow copy
  
  ///Here we are doing the changes:
  copyUserObj.name = "jhon de-costa"
  
  console.log(userObj);
  output:
  {
    "name": "Jhon De-costa",
    "address": {
      "city": {
        "name": "Noida"
      }
    }
  }
  
  
  To avoid these things we deep copy using the ES6 spread operator:
  
  copyUserObj = {...userObj}
  
  copyUserObj.name = "jhon de-costa"
  
  
  console.log(userObj)
  output:
   {
    name: "Jhon",
    address:{
      City: {
        name: "Noida"
      }
    }
  }
  
  
  console.log(copyUserObj)
  output:
   {
    "name": "Jhon De-costa",
    "address": {
      "city": {
        "name": "Noida"
      }
    }
  }
  
  
  Ex:2
  var arr1 = [1, 2, 4]
  
  //Wanted to copy here array to arr2
  var arr2 =  arr1;
  
  arr2[1] = 4
  console.log(arr1);
  
  
  output:
  [1,4,4]
  
  
  //deep copy using spred {...} oprator 
  
  arr2= [...arr1];
  
  console.log(arr2)
  output:
  [1,2,4]
  
  //after modifcation of arr2 the value 
  
  var arr2 = [1,4,4]
  console.log(arr1)
  
  output:
  [1,2,4]
  
  console.log(arr2)
  
  output:
  [1,4,4]
  
  
  If you have any doubts please comment I will clear your doubts;
```
SDK vs Runtime
Published: 2024-07-02 18:29:15

_SDK - yani Software Development Kit, u sizga kerak bo'lgan hamma narsani o'z ichiga oladi: ko'rsatmalar, arizangizni tez va to'g'ri bajarish uchun vositalar._


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0arg70nys0c2igtnycxh.jpg)

SDK avzaliklari.
Uning yordamida darsurlar osonroq va tezroq bajariladi. SDK sizging vazifangizni osonlarshtiradi va funksionalligiga e'tibor qaratish imkonini beradi.

Common Language Runtime(CLR)
Bu codelarni boshqaradigan va boshqa turli xizmatlarni qilish yordamida ish jarayonini osonlashirishga yordam beradi. Asosan u .Net dasturlari uchun javobgardir.

SDK vs Runtime

SDK - o'zini ichida kutubxona, kompelyator va integratsiyalashgan rivojlanish muhitini jamlaydi. SKD Platforma ilovalarini ishlab chiqish uchun kerak bo'ladi.

Runtime - NET-mos keluvchi dasturlash tillarida (C#, Managed C++, Visual Basic .NET, F# va boshqalar) yozilgan dasturlar uchun ish vaqt muhiti.
Heads and Hands On Learning: My Mobile Development Journey with React Native (Expo) Begins
Tags: mobile, reactnative, javascript, firebase
Published: 2024-07-06 08:01:12

I was almost getting lost in Tutorial Hell learning Mobile Development with React Native documentation and tutorials, so I decided it was time to put theory into practice. 😁 

```bash
npx create-expo-app@latest quotix -t
```
I'm thrilled to share my first hands-on mobile app project: Quotix.

### Tech Stack:
- Expo: A powerful React Native framework for cross-platform app development
- Firebase: Handling authentication and database needs
- Custom UI/UX: Designing the interface myself to push my boundaries and see how I can use my Graphic Design Skills in building User Interfaces.

![Image Figma UI Screens](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/u260gyg2mvoe5nyofxzz.png)

### Key Learning So Far:

1. React Structure (JSX, State, Hooks, Events): It's fascinating to see the structural similarities between React for web and React Native. This knowledge transfer is incredibly valuable.

2. Rethinking CSS : While tools like Nativewind exist, I chose to work with vanilla CSS using Stylesheet.create({}). This approach is helping me keep my CSS separate from JSX and gain a deeper understanding of mobile styling nuances.

3. Expo's File-Based Routing: This feature is a game-changer, making navigation setup much more intuitive.

The journey from web to mobile development has been both challenging and rewarding. It's exciting to see how transferable skills can accelerate the learning process in new domains - **ALL HAIL JAVASCRIPT!!!!** 🤣 (My curiosity for Mobile development was actually triggered by Python's Kivy, but damn! I ran away o).

I'm eager to continue this journey, refining my skills and working towards building high-grade, production-ready mobile applications. 

What's your experience with mobile app development? Any tips for a newcomer to the field?

### My Own Tip: 

> If you're learning, just start building. Break things and have an opportunity to learn certain little things you wouldn't have figured out from following 'perfect tutorials' - plus you sharpen your debugging and problem-solving skills too.
Simple OAuth 2.0 Framework for Authentication (Freeware)
Tags: java, freeware, programming, oauth
Published: 2024-07-06 07:56:55

This class implements a small and easy to use framework to support Java applications with OAuth 2.0 for machine-to-machine (M2M) or service-to-service authentication.

https://sofa.k43.ch

```
import ch.k43.tools.SOFA;

public class SOFATest {

   public static void main(String[] args) {

      // Create SOFA object
      SOFA sofa = new SOFA(
         "https://login.microsoftonline.com/xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx/oauth2/v2.0/token",   // Authorization Server with Azure Tenant ID
         "https://outlook.office365.com/.default");						  // Authentication Scope
		
      // Authenticate with client credentials
      if (!sofa.authenticateWithClientCredentials(
         "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",					          // Client ID (Application ID)
         "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")) {						  // Client secret (Value)
         System.out.println("Authentication failed <" + sofa.getErrorMessage() + ">");
         return;
      };

      // Show the ready-to-use HTTP request header
      System.out.println("HTTP Header <" + sofa.getHttpAuthorizationHeader() + ">");
   }
}
```
Pre-requisites: How I Calculate Capacity for Systems Design - 1
Tags: systemdesign, systemdesignwithzeeshanali, javascript
Published: 2024-07-06 07:55:19

Part 2: [How I Calculate Capacity for Systems Design - 2](https://dev.to/zeeshanali0704/how-i-calculate-capacity-for-systems-design-399o)

### Capacity Estimation in System Design

Capacity estimation is essential to ensure that a system can handle its expected load and perform efficiently. It involves calculating the resources needed for processing/traffic handling, storage, and network bandwidth.

**Key Rules for System Design Estimation Calculations**

1. **Rounding Approximations**
   - Simplify calculations by rounding to more manageable numbers.
   - Example: Instead of calculating for 86,400 seconds in a day, use 100,000 (100K) seconds to simplify.

2. **Powers of 2 and 10**
   - Familiarize yourself with powers of 2 and 10 for quick estimations.
   - Example values for powers of 2: 2, 4, 8, 16, 32, 64, etc.
   - Example values for powers of 10:
     - \(10^1 = 10\)
     - \(10^2 = 100\)
     - \(10^3 = 1,000\)
     - \(10^6 = 1,000,000\) (1 million)
     - \(10^9 = 1,000,000,000\) (1 billion)
     - \(10^{12} = 1,000,000,000,000\) (1 trillion)

3. **Metric System**
   - Use metric system units for large numbers:
     - 1 million = \(10^6\)
     - 1 billion = \(10^9\)
     - 1 trillion = \(10^{12}\)

4. **Storage Capacity**
   - Understand common storage units:
     - 1 KB = \(10^3\) bytes
     - 1 MB = \(10^6\) bytes
     - 1 GB = \(10^9\) bytes
     - 1 TB = \(10^{12}\) bytes
     - 1 PB = \(10^{15}\) bytes

 - Storage Assumption

| Storage Assumption | Size     |
|--------------------|----------|
| Single Char        | 2 bytes  |
| Long/Double        | 8 bytes  |
| Image              | 200 KB   |
| Video              | 2 MB     |

5. **Key Metrics to Memorize**
   - 1 million requests per day ≈ 12 requests/second
   - 1 million requests per minute ≈ 700 requests/second
   - 1 million requests per hour ≈ 4,200 requests/minute

6. **Latency Numbers**
   - Familiarize yourself with common latency benchmarks to make informed decisions during system design.

*Note: Google for a table of latency benchmarks for more details.*

### Table for Powers of 2 and 10

| Power of 2 | Value    | Power of 10 | Value                |
|------------|----------|-------------|----------------------|
| \(2^1\)    | 2        | \(10^1\)    | 10                   |
| \(2^2\)    | 4        | \(10^2\)    | 100                  |
| \(2^3\)    | 8        | \(10^3\)    | 1,000                |
| \(2^4\)    | 16       | \(10^6\)    | 1,000,000            |
| \(2^5\)    | 32       | \(10^9\)    | 1,000,000,000        |
| \(2^6\)    | 64       | \(10^{12}\) | 1,000,000,000,000    |


Article 2: [How I Calculate Capacity for Systems Design - 2](https://dev.to/zeeshanali0704/how-i-calculate-capacity-for-systems-design-399o)

More Details:

Get all articles related to system design 
Hastag: SystemDesignWithZeeshanAli

Git: https://github.com/ZeeshanAli-0704/SystemDesignWithZeeshanAli
2行代码，解决静态冲突，自动帮你取消重复的过期请求
Tags: xhr
Published: 2024-07-06 07:52:04


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zv0wd8znu4mbmqtp3m4b.png)


### 安装

```bash
npm i --save abort-request
```

### 使用方式

- **避免竞态冲突，detail 总是最新值**
    
    
    **原始写法**
    
    ```tsx
    import { watch, ref, unref } from 'vue';
    
    // 请求方法
    const getDataAPI = ({ params }: { params: { id: string } }) => {
        // 发起请求
    };
    
    const id = ref();
    const detail = ref();
    
    // 调用请求方法，handleQuery 可能多次调用，detail 数据是最新的吗？
    
    const handleQuery = () => {
    
        getDataAPI({ params: { id: unref(id) } }).then((res) => {
            detail.value = res;
        });
    };
    
    watch(id, () => {
        handleQuery();
    });
    ```
    
    **2行代码优化**
    
    ```tsx
    import { watch, ref, unref } from 'vue';
    import { createAutoAbortExpiredRequest, isAbortError } from 'abort-request';
    
    // 请求方法
    const getDataAPI = ({ params }: { params: { id: string } }) => {
        // 发起请求
    };
    
    const id = ref();
    const detail = ref();
    
    // 创建这个请求方法的自动取消版本
    const getDataAPIAutoAbort = createAutoAbortExpiredRequest(getDataAPI);
    const handleQuery = () => {
        // 使用 getDataAPIAutoAbort 替代 getDataAPI 进行调用，传参方式不变
        getDataAPIAutoAbort({ params: { id: unref(id) } }).then((res) => {
            detail.value = res;
        });
    };
    
    watch(id, () => {
        handleQuery();
    });
    ```
    
- **避免阻塞浏览器 - 如果旧请求还未完成，就取消**
    
    > XHR 和 Fetch 都支持传入 signal 用于中止请求，可以按照当前项目的封装方式，确定传入 signal 的方法，axios 配置参考：[signal: new AbortController().signal](https://github.com/axios/axios#:~:text=signal%3A%20new%20AbortController().signal%2C)
    > 
    
    ```tsx
    const getDataAPI = ({
        params,
        signal,
    }: {
        params: { id: string };
        signal?: AbortSignal;
    }) => {
        // 发起请求
    };
     
    const handleQuery = () => {
        // getDataAPIAutoAbort 可以接受一个函数作为参数，这个函数接受 signal 参数，组装好 signal 后，返回一个数组，用做请求参数
        getDataAPIAutoAbort(({ signal }) => [
            { params: { id: unref(id) }, signal },
        ]).then((res) => {
            // 当多次调用时，未完成的请求被自动取消，不会进入 then 逻辑
            detail.value = res;
        });
    };
    ```
    
- **处理 loading 状态**
    
    ```tsx
    const handleQuery = () => {
        loading.value = true;
        getDataAPIAutoAbort(({ signal }) => [{ params: { id: unref(id) }, signal }])
            .then((res) => {
                // 当多次调用时，未完成的请求被自动取消，不会进入 then 逻辑
                detail.value = res;
                loading.value = false;
            })
            .catch((err) => {
                // 判断不是取消请求的错误
                if (!isAbortError(err)) {
                    loading.value = false;
                }
            });
     
        // 不能在 finally 中处理 loading 状态
    };
    ```
Building a Healthcare Diagnosis Assistant with MindsDB and SQLite
Published: 2024-07-06 07:51:45


In today's fast-paced world, timely and accurate healthcare diagnosis can be a game-changer. To address this need, we have developed a Healthcare Diagnosis Assistant that leverages machine learning to predict health conditions based on patient symptoms. This assistant uses MindsDB for machine learning and an SQLite database for storing patient data. In this post, we'll walk you through the development of this tool.

## Why Use MindsDB?

MindsDB is a powerful open-source AI tool that simplifies the process of training and deploying machine learning models. It allows developers to integrate machine learning into their applications with minimal effort. By using MindsDB, we can quickly build and deploy a model that predicts diagnoses based on patient data.

## Project Overview

The Healthcare Diagnosis Assistant is designed to predict health conditions based on the age, gender, and symptoms of a patient. Here's a breakdown of the features:

- **Predictive Diagnosis**: Input patient details and get a predictive diagnosis.
- **Explanation**: Provides an explanation for the predicted diagnosis.
- **Data Storage**: Uses SQLite for storing and managing patient data.
- **Command-Line Interface**: Simple CLI for user interaction.

## Requirements

Before we start, ensure you have the following:

- Python 3.7 or higher
- MindsDB SDK
- SQLite3

## Project Codebase

The complete codebase for this project can be found on GitHub: [Healthcare Diagnosis Assistant](https://github.com/sneha-4-22/Health_assistant).



## MindsDB Integration

### Connecting to MindsDB

The assistant connects to a local MindsDB server to create and train the prediction model.

### Creating the Model

The model is created using data from the `patients` table in the SQLite database. The model predicts the `diagnosis` based on `age`, `gender`, `symptom1`, `symptom2`, and `symptom3`.

### Training the Model

The model is trained on the sample data provided in the `patients` table.

## Conclusion

Building a Healthcare Diagnosis Assistant with MindsDB and SQLite is a great way to leverage machine learning for healthcare applications. With this tool, you can quickly get predictive diagnoses and explanations based on patient data. MindsDB simplifies the process of integrating machine learning into your applications, making it accessible even for those new to AI.

This Project is under quest submission  [Vote for me (https://quira.sh/repo/sneha-4-22-Health_assistant-824874405?utm_source=copy&utm_share_context=quests_repos) Thanks it means a lot!