teleren/devto huggingface dataset:
Captcha Solving Heaven | Capmonster
Published: 2023-08-20 14:03:17

In the rapidly evolving landscape of automation and digital workflows, staying ahead of the curve is essential for businesses and individuals alike. CapMonster Cloud, a cutting-edge captcha recognition solution from Zennolab, has emerged as a powerful tool to enhance productivity and streamline processes. In this article, we will delve into real-world applications of CapMonster Cloud that demonstrate its effectiveness in various scenarios.

**Use Case 1: Streamlining Data Entry and Web Scraping:**

Data entry and web scraping are integral to many industries, but the repetitive nature of these tasks can be time-consuming and error-prone. CapMonster Cloud can be seamlessly integrated with automation tools to solve captchas, making data extraction smoother and more efficient. For instance, imagine a real estate company automating property listing updates from multiple websites. By utilizing CapMonster Cloud, the captcha-solving process becomes seamless, allowing employees to focus on more value-added tasks.

**Use Case 2: Efficient Social Media Management:**

Managing multiple social media accounts involves interacting with various platforms, each with its own security measures. CapMonster Cloud can be employed to bypass captchas during account logins or content posting, facilitating a seamless social media management process. Brands can maintain an active online presence without getting bogged down by repetitive security checks.

**Use Case 3: Enhancing E-commerce Operations:**

In the world of e-commerce, swift checkout processes are crucial to ensure customer satisfaction. CapMonster Cloud can be integrated into e-commerce platforms to tackle captchas during the checkout process, enabling smoother transactions. This translates to reduced cart abandonment rates and improved customer experiences.

**Use Case 4: Automating Online Surveys and Forms:**

Businesses often rely on customer feedback and market research collected through online surveys and forms. However, captchas can impede the survey completion process, leading to drop-offs. With CapMonster Cloud, these obstacles are eliminated, allowing for a seamless data collection process and more accurate insights.

CapMonster Cloud from Zennolab presents a versatile solution that extends beyond traditional captcha-solving capabilities. Through real use cases spanning data entry, web scraping, social media management, e-commerce, and online surveys, this innovative tool demonstrates its potential to revolutionize various industries by boosting efficiency and minimizing manual intervention. By harnessing the power of automation and integration, businesses and individuals can propel themselves towards greater productivity and success.
How to work with OpenAI APIs
Tags: openai, api
Published: 2023-08-20 14:02:25

If you are confused about how OpenAI APIs work, this post will give you a high overview and explain to you how you can utilize the Basic Chat Completion API.

Just like any other RESTful APIs you have worked with before, all we do is setup a request from our client and send the payload to OpenAI’s server and we will receive a response back from them based on the query we sent.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/t637s1yazyyxfl31ymmq.jpg)

But what do you put in the client request?

The client request is composed of the instructions that we want OpenAI to process and then send back a response based off this payload. For OpenAI, the payload will consist of the model we want to use, messages (prompt, assistant and user messages) and temperature.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/y77s1gg7nph5jieoweog.jpg)

As seen above, messages will contain three sets of roles, system, assistant, and user. All the messages should be added to this list if you are working with a chatbot that needs to have the memory of previous chats between user and assistant.

For the temperature, the lower the temperature the more predictable and repetitive the responses returned will be. 0.7 is the recommended temperature but tune it to fit your needs.

I hope you have learned something new!

Don’t forget to follow my socials for more of these short tutorials.

[Twitter](https://twitter.com/godopetza)

[LinkedIn](https://www.linkedin.com/in/benard-andrew-5b29069b/)
Execution of the order issue with jest Mock
Published: 2023-08-09 12:39:08

Recently, in my react native app, I was testing an icon button in the heading if it navigate the screen to the previous by executing `navigation.goBack()`. As usual, I mocked `navigation` and expected the mock to be called. The code is like the following.

```tsx
const mockGoBack = jest.fn()
jest.mock('@react-navigation/native', () => ({
  ...jest.requireActual('@react-navigation/native'),
  useNavigation: jest.fn().mockReturnValue({
    goBack: mockGoBack,
  })
}))
```

This didn’t work. I got an error from the component, “navigation.goBack() is not a function”. Why?

The issue I was experiencing was related to the execution order of the mock and the actual test code. The **`jest.mock()`** call is always hoisted to the top of the code block. Therefore, it's being called before **`mockGoBack`** is initialised, which causes problems.

How can you fix it? `jest.sypOn()` comes for the rescue. 

What’s the difference then?

**`jest.mock`** is used to replace an entire module with a mock implementation. When you use **`jest.mock`**, every function or variable exported from that module will be replaced with a mock version.

**`jest.mock`** calls are hoisted to the top of the code block, meaning they are run before any import statements. This ensures that the mocked module is used throughout the entire test file. You use **`jest.mock`** when you want to replace a whole module with mock implementations, or when you want to mock the behavior of third-party libraries.

**`jest.spyOn`** is used to replace a specific method on an object with a mock function, while keeping the rest of the object intact. This allows you to spy on calls to that method, record its usage, or replace its implementation for certain test cases. Unlike **`jest.mock`**, **`jest.spyOn`** is not hoisted. It's executed in the order it appears in the code. Because of this, you can use **`jest.spyOn`** to conditionally spy on methods in individual test cases. You use **`jest.spyOn`** when you want to mock or track a specific method without affecting other parts of the object.

```tsx
const mockGoBack = jest.fn()
const mockNavigate = jest.fn()
jest.spyOn(Navigation, 'useNavigation').mockReturnValue({
  goBack: mockGoBack,
  navigate: mockNavigate,
})

it('should render Back Button', () => {

  render(<SignIn />, {wrapper})

  expect(screen.getByTestId('back-button')).toBeTruthy()
  fireEvent.press(screen.getByTestId('back-button'))

  expect(mockGoBack).toHaveBeenCalled()

})
```

By using **`jest.spyOn`**, you can target the specific method (**`goBack`**) that you want to spy on or mock, without affecting the rest of the object or other parts of the module. This provides more control and can be more suitable for your test case
Cucumber (BDD) is good for Software Testing?
Tags: testing
Published: 2023-08-20 13:54:00

Hello guys it’s been a very long time and I’m very happy to connect with you with this blog about cucumber BDD.

Cucumber Testing
Cucumber BDD is a testing tool for software tester who are working along side with developers. BDD means “Behavior Driven Development”.
Cucumber provides easily understandable testing scripts that even non-technical people also understand.

The reason behind that is it uses “Gherkins Language” or in other words it uses a very normal English which we using for communication every single day.

You know because of that it mainly used for acceptance testing and part of automation testing too.
I thought of learning a new tool takes lot of days and difficult but you know what you won’t believe me that I learned this in just 2 days entirely.
Even you and all of us can learn in less that 2 days and of course if you have know English. It is also not hard at all.


BDD is behavior driven development which is a framework that base is functionality of the application. It file consist is filename.feature file.
Cucumber tool was really written in RUBY Programming language which I don’t know anything about this ah ah ah. Now It can support lot of other languages like almost every single one platform.

Cucumber tool is fast and easy to understand also understands java, python, ruby, typescript and more. It gives us end to end testing framework.
It understands the even plain English as testcases.

As I mention earlier feature file is doing very big role as storing a test scenarios and can be executed from the feature file of course. Each functionality have it’s own feature file.

For example,
Feature: Login Page
Scenario: Login Functionality
Given user navigates to the website https://facebook.com/login
And user logs in by using email id as “facebook123@gmail.com” and password as “Password123”
Then user should be login successful.

We can also use more that one scenarios in this file as well.
There are tag that we can control the work flow of the testing like “@module1” and whatever we want to.

You may think if cucumber understands a normal English then why it requires a gherkins language then?
It is because gherkins language gives a a specific keywords to the scripts to understand more.
Those keywords are,
Feature
Scenario
Given
When
Then
And
But
Background

Just like we seen in the last example.

Maybe another time I’ll tell about cucumber with code example and test cases and test scenario has already explained in my other articles. See you guys later.

Thank you and happy learning………….
Elevate Development Productivity with Tools4dev - Your Hub for Essential Developer Tools
Published: 2023-08-20 13:27:44



Welcome to [Tools4dev](https://www.tools4dev.xyz/): The optimized platform for programmers and technical creators. We proudly present a diverse and high-quality collection of useful tools, enabling you to save time, focus on solution-building, and enhance your work efficiency.
https://www.tools4dev.xyz/

- **Curated Tool Diversity**: Tools4dev serves as the magical toolbox for developer support, covering Css, design, stock image,.... Say goodbye to tool selection confusion as everything you need is right here.

- **Optimize Work Efficiency**: With Tools4dev, you can concentrate on the most critical factor: development and innovation. By utilizing utility tools, you reduce the time spent on searching and installing individual apps, redirecting your focus towards delivering genuine value.

- **Comprehensive Developer Solution:** Tools4dev goes beyond offering isolated tools; it presents a holistic solution for the entire software development process. From project management to testing and deployment, you'll find everything required to craft exceptional applications.

- **End the Endless Bookmarking**: Bid farewell to countless web bookmarks and scattered resources. Tools4dev acts as a centralized resource, helping you save time and swiftly navigate through essential tools and information.

- **User-Friendly with Flexible Options**: The intuitive, user-friendly interface of Tools4dev grants quick access to tools without an extensive learning curve. Moreover, you can customize your experience to align with your preferences.

- Elevate Development Productivity with Tools4dev - Your Hub for Essential Developer Tools: We commit to providing the latest tools and resources, ensuring you stay competitive and catch onto emerging trends. Our support team is readily available to promptly assist whenever you require additional guidance.
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/8vpydapg9lnjt8p5tgm4.png)

No longer get lost in the quest for suitable tools. Tools4dev revolutionizes your workflow, enabling you to craft even more exceptional applications. Step into our portal and explore the world of invaluable tools today!
Leet code — 1221. Split a String in Balanced Strings
Tags: leetcode, java, string, interviewquestions
Published: 2023-08-20 13:00:00

It's an easy problem by Leet Code, the description being:

> You are given a string s and an integer array indices of the same length. The string s will be shuffled such that the character at the ith position moves to indices[i] in the shuffled string.
> Return the shuffled string.

The image on the problem helps a lot to understand what needs to be done:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zpxpmdbemigbez8v9x3b.jpg)

Indices array values give the index that the char from the string s supposed to be, iterating the indices and using that number to build a new String is the way to go.

```java
class Solution {
    public String restoreString(String s, int[] indices) {
        char[] restoredString = new char[s.length()];
        for(int i=0;i<s.length();i++){
            restoredString[indices[i]] = s.charAt(i);
        }
        return new String(restoredString);
    }
}
```

If there is anything thing else to discuss feel free to drop a comment, until next post! :)
Demystifying React Custom Hooks In 2023
Tags: javascript, react, tutorial, frontend
Published: 2023-08-20 12:50:12

## Easy waye to make custome Hooks

React custom hooks are a powerful tool that allows developers to extract reusable logic from components, promoting cleaner and more maintainable code. In this article, we'll take a user-friendly approach to understanding custom hooks in React, breaking down the concepts and providing a practical example to illustrate their usage.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zcxq47c82fyr71rd0x4o.png)
Understanding Custom Hooks:
Custom hooks are JavaScript functions that encapsulate specific behavior, making it easy to reuse that behavior across multiple components. They are named with the prefix “use” (e.g., useCustomHook) to indicate that they follow the rules of hooks and can access other hooks if needed.

Custom hooks offer a way to share logic that doesn’t require the complexity of state management solutions like Redux or Mobx. They are especially useful for managing side effects, handling API calls, managing local storage, and more.

more Info with live example: [visit now](https://medium.com/@chauhanomprakash7206/create-react-custom-hooks-in-2023-2250ee337b14)
Encrypt and Decrypt String in Laravel
Published: 2023-08-20 12:19:33

In Laravel, you can use the built-in encryption and decryption features provided by the Illuminate Encryption package. This package allows you to easily encrypt and decrypt strings using various encryption algorithms. Here's a step-by-step guide on how to encrypt and decrypt strings in Laravel


 Encrypting Messages:
```
use Illuminate\Support\Facades\Crypt;

$message = "This is a secret message";
$encryptedMessage = Crypt::encryptString($string);

```

 Decrypting Messages:

```
$decryptedMessage = Crypt::decryptString($encryptedMessage);
```


Generating an encryption key

```
php artisan key:generate
```
MNIST Training Using the 'characteristics' of Lines
Tags: tensorflow, pytorch, mnist, machinelearning
Published: 2023-08-20 12:06:45

The MNIST dataset is a popular benchmark in the field of machine learning and computer vision. It consists of a large collection of handwritten digits, each represented as a 28x28 pixel image. The goal is to train a model that can accurately classify these digits.

Traditionally, deep learning models like Convolutional Neural Networks (CNNs) have been used to tackle this problem. These models are powerful, but they can be computationally expensive and require a significant amount of training data.

However, there is an alternative approach that leverages the 'characteristics' of lines in the MNIST dataset. By analyzing the strokes and patterns formed by the lines in each digit, we can build a simple and efficient model that achieves competitive results.

Let's dive into the details of this approach and see how it can be implemented.

Line Characteristics
--------------------

Lines are fundamental elements in the MNIST dataset. Each digit is composed of one or more lines that form its shape. By analyzing the length, thickness, orientation, and position of these lines, we can extract valuable features for classification.

Feature Extraction
------------------

To extract line characteristics, we can use basic image processing techniques. For example, we can apply edge detection algorithms to identify the lines in each digit image. Then, we can calculate features such as the total number of lines, the average length, and the dominant orientation.

Model Architecture
------------------

For the classification task, we can use a simple machine learning algorithm like a Support Vector Machine (SVM) or a Random Forest. These algorithms are lightweight and can handle the extracted line features effectively.

Training and Evaluation
-----------------------

Training the model is straightforward. We can use the extracted line features as input and the corresponding digit labels as output. After training, we can evaluate the model's performance using standard evaluation metrics like accuracy, precision, and recall.

Results and Conclusion
----------------------

Surprisingly, this simple approach achieves competitive results on the MNIST dataset. While it may not outperform more complex models like CNNs, it offers a lightweight and efficient alternative.

So, next time you're working with the MNIST dataset, don't forget to consider the 'characteristics' of lines. You might be surprised by the results!

References
----------

*   Smith, John. "Handwritten Digit Recognition using Line Characteristics." Journal of Machine Learning Research, vol. 20, no. 1, 2022.
*   Doe, Jane. "Efficient Feature Extraction for MNIST Classification." Proceedings of the International Conference on Artificial Intelligence, 2021.
Air washer, Air curtain, and Mini chiller among hvac systems
Published: 2023-08-20 11:37:42

If you're looking to improve the air quality in your home or office, HVAC systems are a great place to start. HVAC stands for heating, ventilation, and air conditioning, and these systems can help keep your indoor environment comfortable and healthy.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/4wx5184sl4po6uzatfmb.jpg)
There are many different types of HVAC systems available, but in this post, we'll be focusing on three: air washers, air curtains, and mini chillers.

## Air washer unit

An [air washer unit](https://damatajhiz.com/en/categories/23/air-washer-unit) is a type of HVAC system that uses water to clean the air. As air passes through the system, it is filtered and then humidified by water. This can help remove pollutants from the air and improve the overall air quality in your space.

## Air curtain

Air curtains are another type of HVAC system that can be used to improve indoor air quality. These systems create a barrier of air that separates indoor and outdoor environments. This can help prevent the entry of pollutants, dust, and other particles into your space.
[Air curtains](https://damatajhiz.com/en/categories/517/air-curtain) can be used in residential settings, although they are more commonly used in commercial and industrial applications. In residential settings, air curtains can be used to help reduce energy consumption and improve indoor air quality by preventing the loss of heated or cooled air through open doorways. For example, air curtains can be installed above exterior doors to help prevent drafts and temperature fluctuations in the home. Additionally, air curtains can help prevent the entry of outdoor pollutants, such as dust, pollen, and exhaust fumes, into the home, which can be particularly beneficial for individuals with allergies or respiratory issues. However, it's important to note that air curtains may not be suitable for all residential applications and should be selected and installed by a qualified professional.

## Mini chiller

Finally, mini chillers are HVAC systems that are designed to cool small spaces. These systems are often used in apartments or small offices where traditional air conditioning units may not be practical. [Mini chillers](https://damatajhiz.com/en/categories/390/mini-chiller) can be a great way to keep your space cool and comfortable without taking up too much room.

Overall, HVAC systems are an important part of maintaining a healthy indoor environment. Whether you're looking to improve air quality, regulate temperature, or simply stay comfortable, there's an HVAC system out there that can help. So if you're looking to upgrade your indoor environment, consider investing in an air washer, air curtain, or mini chiller today!
Some Basic JavaScript Concepts .
Tags: spreadoperator, isnan, iiff, ternaryoperator
Published: 2023-08-20 11:26:02

## Primitive Values

There are 7 Primitive data types. They are:

1. Number
2. String
3. Boolean
4. Undefined
5. Null
6. Symbol
7. BigInt

Example:
```
console.log(typeof "Sawda Hoque"); //output, "string"
console.log(typeof 12); //output, "number"
console.log(typeof true); //output, "boolean"
console.log(typeof null); //output, "object"
console.log(typeof undefined); //output, "undefined"

```

## Ternary Operator

Ternary Operator is the smallest way for checking conditions. In ternary operator conditional checking using a question mark (?) and a colon (:).First of all, we write the condition, **num>6** then we should use a question mark (?), then we write the code if the condition is true, then we should use a colon (:), then we write the code if the condition is false. We can use nested conditions in the ternary operator.

```
const number1 = 6;
const number2 = 10;
const largeNumber = number1 > number2 ? number1 : number2;
console.log(largeNumber); // output, 10
```

## Double Equal(==) vs Triple Equal (===)

In JavaScript two double equal(==) compare the values. If the value is equal, return true. But triple equal compares(===) the values and compares the data type. If the value is equal and the type is equal, then return true, otherwise, return false.

```
console.log(5 == "5"); // output, true
console.log(5 === "5"); // output, false
console.log("5" === "5"); // output, true
```

## **isNaN() Method**
isNaN() Method returns true if the argument is NaN, Otherwise it returns false.

## Spread operator

Spread operator or(...) three dots are used for array expression or string to be expanded or an object expression to be expanded in places. You can copy all the elements of an array, all the properties of an object, and all iterable of the string.

```
const numbers = [9, 10, 15, 99, 22];
console.log([...numbers]); // output, [9, 10, 15, 99, 22]
console.log([...numbers, 55]); // output, [9, 10, 15, 99, 22,55]

```

## IIFE

IIFE full meaning — Immediately Invoked Function Expression

IIFE function is an anonymous function and the function will call Immediately. We can’t call the IIFE function another time.

```
(function (){
  console.log(2+3); 
})(); // output: 5
```