teleren/devto huggingface dataset:
Meeting Your Communication Needs with Troop Messenger's Scalable Solutions
Tags: software, productivity, tutorial
Published: 2023-04-24 07:56:00

## Introduction

In today's world, communication has become an essential part of our lives. Whether it's for personal or professional use, we need to stay connected with our peers, colleagues, and loved ones. With the increasing number of communication platforms available in the market, it can be overwhelming to choose the right one for your needs. This is where Troop Messenger comes into the picture.

Troop Messenger is a communication platform that provides a [defense messaging system](https://www.troopmessenger.com/defence) that is secure, reliable, and scalable. It is designed to meet the communication needs of businesses and individuals alike. Troop Messenger provides a suite of features that make it the perfect solution for all your communication needs.

## Secure Communication with Troop Messenger's 

Troop Messenger's defense messaging system provides end-to-end encryption, which ensures that your messages are secure and cannot be intercepted by third parties. The platform also provides other security features such as two-factor authentication, device management, and data encryption at rest. These features make Troop Messenger the perfect choice for businesses that deal with sensitive data.Are you planning a cruise trip with your friends or family? Troop Messenger can be your perfect companion on the high seas. The platform provides a seamless communication experience, even in areas with limited network connectivity. Troop Messenger's offline messaging feature ensures that your messages are delivered as soon as the network is available. This platform Provides **[Chat And Call on a Cruise Ship](https://www.troopmessenger.com/blogs/how-to-chat-and-call-on-a-cruise-ship)** and its also provides,voice and video calling features, which means you can stay connected with your loved ones even when you are miles away.

## Scalable Solutions for Businesses

Troop Messenger's scalable solutions make it the perfect choice for businesses of all sizes. Whether you are a small startup or a large corporation, Troop Messenger can cater to your communication needs. The platform provides features such as team management, file sharing, and integration with other business tools such as CRM and project management software. These features make Troop Messenger the perfect choice for businesses that need a reliable and scalable communication platform.

## Conclusion

Troop Messenger is a communication platform that provides a defense messaging system that is secure, reliable, and scalable. It is designed to meet the communication needs of businesses and individuals alike. Troop Messenger provides a suite of features that make it the perfect solution for all your communication needs. Whether you need to stay connected with your colleagues or loved ones, Troop Messenger has got you covered.
Embracing Early Exits: Refactoring Concepts in Programming with Real-World Examples
Tags: refactoring, python
Published: 2023-04-24 07:55:32

Introduction

In programming, writing clean and maintainable code is essential. One technique that can help developers achieve this is the Early Exit refactoring concept. Early Exit is a technique that promotes returning from a function or method as soon as possible, thus reducing the cognitive load required to understand the code. In this article, we will explore the Early Exit concept, its benefits, and real-world examples to demonstrate its practical application.

Understanding Early Exits

The Early Exit refactoring technique is about simplifying complex code by returning from a function or method as soon as the desired result is achieved or an undesired condition is met. This practice helps in reducing nested conditions, which in turn makes the code more readable and easier to understand.

Benefits of Early Exits

1.  Improved readability: By reducing the nested conditions, Early Exits make the code easier to read and understand.
2.  Simplified debugging: With fewer nested conditions, it becomes easier to identify the source of a bug or error.
3.  Enhanced maintainability: Simplified code means that future modifications and updates will be easier to implement.

Real-World Example: Refactoring a Function

Let's consider a real-world example to demonstrate the Early Exit technique. We have a function that checks if a user is eligible for a promotional discount based on various conditions:

python

```python
def is_eligible_for_discount(user):
    if user.has_membership():
        if user.membership_duration >= 6:
            if not user.has_pending_payments():
                return True
            else:
                return False
        else:
            return False
    else:
        return False

eligible = is_eligible_for_discount(user)
```

The nested conditions make this code harder to read and understand. Let's refactor it using the Early Exit technique:

python

```python
def is_eligible_for_discount(user):
    if not user.has_membership():
        return False

    if user.membership_duration < 6:
        return False

    if user.has_pending_payments():
        return False

    return True

eligible = is_eligible_for_discount(user)
```

By applying Early Exits, we've eliminated the nested conditions and made the code much more readable. Each condition is now checked sequentially, and the function returns as soon as a condition fails, making it easier to comprehend and maintain.

Conclusion

The Early Exit refactoring concept is an invaluable technique for enhancing the readability and maintainability of your code. By returning from a function or method as soon as possible, developers can reduce the cognitive load required to understand the code and make it easier to debug and maintain. Incorporating Early Exits into your programming practices will result in cleaner, more efficient code that is easier to work with and maintain over time.
My welcome post
Tags: welcome, thanks, community, connect
Published: 2023-04-24 07:49:26

Hello my name is Felix who is learning **data science**. I have over six months now since I started my career professional development journey. 
I am web developer with basic skills on **raw php**, now transitioning to **data science** field. 
I am here to **connect, learn, and improve my skills**.

Thanks and happy to connect :)
Felix
DuckDB: Simplifying data analytics for happier data professionals and reduced hosting costs
Tags: database, analytics, duckdb
Published: 2023-04-24 07:38:47

The world of data analytics is dominated by large platforms that only sometimes offer the flexibility of using your own hardware. When possible, it's often meant to run on clusters, not your laptop.

Enter DuckDB, an in-process database management system perfect for analytics while keeping your favorite tools and hardware in play. No more waiting for jobs to complete on remote clusters! Plus, it scales well beyond the needs of many organizations, even on a tight budget.

Intrigued, I tested DuckDB with a 107 GB, 5 billion row dataset of Parquet files, a standard data lake format, and looked into what it could mean for hosting bills:

- [DuckDB lets data folks use familiar tools on their own computers which means they stay happy and efficient](https://fet.dev/posts/duckdb-means-happy-data-folks)
- [Throwing 107 GB and 5 billion fake rows of order data at DuckDB and Athena](https://fet.dev/posts/throwing-lots-of-data-on-duckdb)
- [Costs to run analytics on dedicated servers compared to AWS](https://fet.dev/posts/costs-of-analytics-on-dedicated-hardware-vs-aws)

DuckDB offers an enticing alternative for those seeking a more flexible and cost-effective data analytics solution. Give it a try and see the difference it can make for your organization!
Performance Tuning-Analyzing Hardware Bottlenecks
Tags: opengauss
Published: 2023-04-24 07:31:38

The CPU, memory, I/O, and network resource usage of each node in openGauss are obtained to check whether these resources are fully used and whether any bottleneck exists.

**·** CPU
You can run the top command to check the CPU usage of each node in openGauss and analyze whether performance bottleneck caused by heavy CPU load exists.
**·** Memory
Run the top command to check the memory usage of each node in openGauss and analyze whether a performance bottleneck occurs due to high memory usage.
**·** I/O
You can run the iostat or pidstat command, or use openGauss heath check tools to check the I/O usage and throughput on each node in openGauss and analyze whether performance bottleneck caused by I/O exists.
**·** Network
You can run the sar or ifconfig command to check the network status on each node in openGauss and analyze whether performance bottlenecks caused by network faults occur.
Exploring Object-Oriented Programming Concepts with Diagrams
Tags: systemdesign, programming, beginners, oop
Published: 2023-04-24 07:26:45



![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5uyayt2wssdhbumaxj1h.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5imsfet1aio9ai6zmto4.png)
Performance Tuning-Overview
Tags: opengauss
Published: 2023-04-24 07:24:14

To fine-tune openGauss performance, you need to identify performance bottlenecks, adjust key parameters, and optimize SQL statements. During performance tuning, locate and analyze performance issues based on performance elements, such as system resources, throughput, and loads to achieve required system performance.

Various factors must be considered during openGauss performance tuning. Therefore, optimization personnel must know well about knowledge, such as system software architecture, hardware and software configuration, database parameter configuration, concurrency control, query processing, and database applications.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/8r55arqzuvzhd2az9l2f.png)

**Tuning Process**
Figure 1 shows the procedure of performance tuning.

Figure 1 openGauss performance tuning

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cvim2w2j9tqh30mdjy8u.png)

Table 1 lists the details about each phase.

Table 1 openGauss performance tuning

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/z5qj2czn6a1wcma9my03.png)
How does Laravel integrate with front-end frameworks like Vue.js?
Tags: laravel, vue, interviewquestions, laravelinterview
Published: 2023-04-24 07:01:24

[Laravel](https://www.onlineinterviewquestions.com/laravel-interview-questions) integrates with Vue.js through the Laravel Mix package, which provides a simple API for compiling and bundling JavaScript assets like Vue components. With Laravel Mix, developers can easily set up a build process that transpiles, minifies, and concatenates their JavaScript code, as well as any other static assets like CSS and images.

To use Vue.js in a Laravel application, developers typically create a new Vue component file in the resources/assets/js directory, which contains the component's JavaScript code, template markup, and styles. They can then import and use the component in a Blade template file using a simple @verbatim directive, like so:
<pre>
@extends('layouts.app')

@section('content')
    <div id="app">
        <my-component></my-component>
    </div>
@endsection

@verbatim
    <script>
        import MyComponent from './components/MyComponent.vue';

        new Vue({
            el: '#app',
            components: {
                'my-component': MyComponent
            }
        });
    </script>
@endverbatim
</pre>
This code defines a new Vue instance that mounts a MyComponent instance to the #app element. The MyComponent instance is defined in a separate file located in the resources/assets/js/components directory. When the Blade template is rendered, the @verbatim directive tells Laravel to ignore the code inside the <script> tag and simply output it as-is.

Overall, Laravel's integration with Vue.js is seamless and flexible, allowing developers to build powerful and responsive front-end interfaces with ease.
How Much Does It Cost To Hire JavaScript Developers In India?
Tags: javascript, developer, india
Published: 2023-04-24 06:46:33

Here's an overview of what you can anticipate in terms of the requirements, timeline, and cost when seeking to hire a proficient JavaScript developer in India for your project.

## 1. Project Type 
Laying out what type of project you need to do from your JavaScript developer will help you determine deliverables, phases, and the amount of time it will take to complete. If you are asking to develop a simple website, projects can take a week, which might not cost you much. 
But when you ask your developer to develop a web application using a JS framework like AngularJS, or ReactJS, then somewhere complexity increases and the time and cost also increase.

## 2. Developer experience

Define what the JavaScript developer will be doing. Do you need a junior JS developer to just update your existing project, or do you need someone who is senior and know Node.js for handling server-side scripts? In this case, the cost to hire a junior JavaScript developer may cost you less than a senior developer,

## 3. Location of developer

Developer coding from a city like Bangalore, India may cost you more than the developer who is staying in a small city. Location plays a significant role in the cost to [hire JavaScript developers in India](https://www.i-webservices.com/hire-javascript-developers). 

## 4. Freelancer vs. Agency

Another factor that affects the cost is whether you hire a freelancer or an agency. Freelancers are generally more affordable than agencies, but agencies offer more reliability and can handle larger projects.

## Wrap up!

In India, the cost of hiring a skilled JavaScript developer can vary from $10 to $40 per hour depending on several factors such as the complexity of the project, experience level of the developer, location, and the hiring type, whether through a freelancer or an agency. 

It is crucial to define your project requirements clearly and conduct extensive research before bringing or hiring JavaScript Developers in India to ensure that you find the most suitable candidate within your budget. 

It is unwise to base your decision solely on the lowest price offered. Hiring a developer with inadequate experience or limited knowledge can result in faulty code that will ultimately waste your time and money. It is therefore essential to evaluate the technical expertise and experience of the JavaScript developer before hiring.
MOT JIT Diagnostics
Tags: opengauss
Published: 2023-04-24 06:22:54

**mot_jit_detail**
This built-in function is used to query the details about JIT compilation (code generation).

**Usage Examples**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jeobg9y9104nt8bo06po.png)

**Output Description**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5u5prx9h2cqs6q7p7k2n.png)

**mot_jit_profile**
This built-in function is used to query the profiling data (performance data) of the query or stored procedure execution.

**Usage Examples**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/4rkt6tu29rs7xx8o9iw2.png)

**Output Description**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zh01y16659ud5lwv0xxw.png)

**Miscellaneous**
Another useful system table to get information about stored procedures and functions is **pg_proc**.

For example, body of a stored procedure can be queried using the following query:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/mu6onteeuege6ul07lui.png)
Intro Middlewares in .Net Core
Published: 2023-04-24 06:20:21

Few basic details about .net middleware. 

In .NET Core, middlewares are components that are added to the application pipeline to handle requests and responses. They can perform various tasks such as authentication, logging, caching, compression, routing, and more. Middlewares are executed in the order they are added to the pipeline, and each middleware can choose to pass the request to the next middleware or handle the response itself.

Let's see example to create a custom middleware in C#:

```csharp 
using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;

public class CustomMiddleware
{
    private readonly RequestDelegate _next;

    public CustomMiddleware(RequestDelegate next)
    {
        _next = next;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        // Perform some action before calling the next middleware
        Console.WriteLine("Custom middleware executing before the next middleware");

        // Call the next middleware in the pipeline
        await _next(context);

        // Perform some action after the next middleware has executed
        Console.WriteLine("Custom middleware executing after the next middleware");
    }
}

```

In this example, we create a middleware component called CustomMiddleware that takes in a RequestDelegate parameter in its constructor. The RequestDelegate is a delegate that represents the next middleware in the pipeline.

The **CustomMiddleware** class also defines an **InvokeAsync** method, which is the method that is called when the middleware is executed. In this method, we perform some action before calling the next middleware, call the next middleware in the pipeline using the _next delegate, and then perform some action after the next middleware has executed.

To add this middleware to the pipeline, we can use the UseMiddleware extension method in the Startup class:

```csharp
using Microsoft.AspNetCore.Builder;

public class Startup
{
    public void Configure(IApplicationBuilder app)
    {
        app.UseMiddleware<CustomMiddleware>();
    }
}
```

In this example, we add the **CustomMiddleware** to the pipeline using the **UseMiddleware** method. Now, every time a request is received, the **CustomMiddleware** will execute before the next middleware in the pipeline.

Note that this is just a simple example of how to create and use a middleware in .NET Core. There are many built-in middlewares available in the framework that can be used for various purposes, and you can also create your own custom middlewares to handle specific tasks in your application.

Middlewares made code more easyand manageable :)
API response codes poem
Published: 2023-04-24 06:17:41

In the world of tech, there’s a curious thing,
Called API requests that make devices sing.
They’re like little messages that devices send,
To get a response from their API friend.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

API requests are like a note,
Sent to an API with a hopeful mote.
They can ask for data or do some work,
And wait for a response, like a playful quirk.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

But sometimes the API friend may say,
“I cannot do as you request today”.
And send a response with a special code,
To let the device know what’s on the road.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

Response codes are like a language too,
And help devices know what to do.
There’s 200 for success, and 400 for bad,
And 500 for errors, that makes devices sad.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

With response codes, the devices know,
If their requests are a friend or foe.
They can take action based on the code,
And keep the tech world in a secure mode.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

So next time you send an API request,
And wait for a response with bated breath,
Remember that codes are the language that speak,
And help devices find what they seek.

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

API requests and response codes together,
Are the backbone of tech’s forever.
They help devices connect and communicate,
And make our world a much better state.
Practice your API testing skills in a fun way
Published: 2023-04-24 06:17:21

Oh, the places you’ll go with a Pokemon API, A world of creatures, oh my oh my! With data so vast, and code to explore, Your skills will be tested, that’s for sure!

You’ll send out your queries with speed and with might, And parse through the JSON with all of your sight. The API will answer, with information so fine, The stats of a Pikachu, or a Snorlax so divine.

You’ll catch all the errors, with debugging so keen, And test every endpoint, like it’s a machine. From GETs to POSTs, you’ll try them all, And make sure your app won’t ever stall.

With every response, your app will come alive, As you build a tool, to help trainers thrive. And when you’re done, with your API so grand, You’ll share it with the world, across every land.

So come on and try, this Pokemon API, With its power and might, you’ll surely fly. And when you’re feeling stuck, don’t you fret, Just watch this tutorial, you won’t regret!

Here’s the link to guide you along, A video so helpful, so charmingly strong: https://www.youtube.com/watch?v=jldlYgy_fV4

With this by your side, you’ll surely score!
Unable to update X : status-code=409 kind=snap-changes-conflict message= snap "x" has "auto-refesh" change In Progress
Tags: linux
Published: 2023-04-24 05:52:51

We want to update our softwares from Ubuntu Software, but this is what we get as an error.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ny0dm5duv3uct55oc3k0.png)
To solve this, go to your terminal and write:

```
snap changes

```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/pmxxa9jcogf9jaj1walz.png)

Abort the snap change with 259 (It should have been with a status "Doing" but mine had an issue" as it is refreshing these softwares.

```
snap abort <snap ID>
```
Then you can update.

Once the refresh is done, you can now update softwares.

Done!

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/2ko3c2ne3yyexkyz0giw.png)
🎯 Let’s Understand ️” 𝐂𝐫𝐞𝐚𝐭𝐢𝐧𝐠 𝐚 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐖𝐒 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐰𝐢𝐭𝐡 𝐀𝐮𝐭𝐨 𝐒𝐜𝐚𝐥𝐢𝐧𝐠 𝐚𝐧𝐝 𝐋𝐚𝐮𝐧𝐜𝐡 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧𝐬” POC
Published: 2023-04-24 05:42:06


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ddt5hc5wsrnn1chew2ku.png)

Hey, connections!!👋

🎯Let’s learn and grow together.

📢 📢 📢

🎯 Let’s Understand ️” 𝐂𝐫𝐞𝐚𝐭𝐢𝐧𝐠 𝐚 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐀𝐖𝐒 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐰𝐢𝐭𝐡 𝐀𝐮𝐭𝐨 𝐒𝐜𝐚𝐥𝐢𝐧𝐠 𝐚𝐧𝐝 𝐋𝐚𝐮𝐧𝐜𝐡 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧𝐬” POC

Click the YouTube link. https://lnkd.in/dPwNy4-Y

Happy learning,
🍂🍂🍂🍂
Sources: Google
Method Reference in Lambda
Tags: java, lambda
Published: 2023-04-24 05:32:43

Method reference is a good way to reduce the noise inside our Java streams.



Say that we have a list of names, and we want to map each of them to full name. We can achieve that by using the code below:

```java
public void example() {
    List <String> names = Arrays.asList("Jerome", "Steve", "Cathy", "Lara");

    names.stream()
        .map((String name) -> {
            User user = repository.getUser(name);
            String fullname = user.firstname + " " + user.lastname;
            return fullname;
        })
        .forEach((String name) -> System.out.println(name));
}
```

Streams are not good for readability if your lambda methods contain many lines of codes. I prefer to have a rule of thumb that if it's 3 or more lines then we need to extract the code to its dedicated method. 

```java
public String getFullname(String name) {
    User user = repository.getUser(name);
    String fullName = user.firstname + " " + user.lastname;
    return fullname;
}
```

Then use method reference to make our stream more concise and shorter. 


```java
public void example() {
    List <String> names = Arrays.asList("Jerome", "Steve", "Cathy", "Lara");

    names.stream()
        .map(this::getFullname)
        .forEach((String name) - > System.out.println(name));
}
```

Note that a properly name method will make a difference. A code ``map(this::getFullname)`` can read as an English sentence. That's a sign of a cleaner and better code.