teleren/devto huggingface dataset:
How Serverless computing can save costs and increase scalability for businesses
Tags: webdev, serverless
Published: 2023-05-03 08:02:53

Serverless architectures offer several benefits, including cost savings and increased scalability for businesses. We will investigate how serverless can save costs and increase scalability for businesses.

## Pay-per-use pricing model
Serverless computing allows businesses to pay only for the computing resources they use, without having to worry about the underlying infrastructure. This pay-per-use pricing model helps businesses save costs as they only pay for the resources they consume, and not for idle resources.

## No upfront infrastructure costs
With Serverless computing, businesses do not need to invest in upfront infrastructure costs such as servers, storage, and networking equipment. This reduces capital expenditures and allows businesses to allocate their resources more efficiently.

## Auto-scaling
Serverless architectures can auto-scale in response to changes in demand, allowing businesses to handle sudden spikes in traffic without having to manually provision additional resources. This results in increased scalability and improved performance for businesses.


## Reduced operational costs
Serverless computing also reduces operational costs for businesses. With serverless architectures, businesses do not need to manage the underlying infrastructure, such as server maintenance and upgrades. This reduces operational overheads and allows businesses to focus on their core competencies.

## Improved time-to-market
Serverless architectures enable businesses to develop and deploy applications faster, without having to worry about infrastructure management. This results in improved time-to-market for businesses, allowing them to respond quickly to changing market conditions and customer needs.


Serverless computing offers several benefits for businesses, including cost savings and increased scalability. The pay-per-use pricing model, no upfront infrastructure costs, auto-scaling, reduced operational costs, and improved time-to-market are just a few of the advantages of serverless computing. By adopting serverless architectures, businesses can improve their bottom line, deliver better services to their customers, and stay competitive in today's fast-paced business environment.
Customize navigation bar in Android Studio
Tags: android, java, nav, bar
Published: 2023-05-03 07:50:40

Hello all,
I am currently building a navigation bar for my app. Since I am relatively new, I have one or the other problem.
The desired result should look like this:

![Goal layout](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hgfvqgqs08grdxv1u61b.png)

My version that I have so far looks like this:

![Current state with the posted code](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rhe0h4usxxxbsqi850ac.png)
I have the individual icons as .png with and without gradient (white). as well as the background to be displayed when selected.

![Icon in White for selection](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/lbvbfa90btxf6rvn7rip.png)
![Icon with gradient if not selected](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ty1oes81s1z4rcggbqjd.png)
![Background if selected](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/9txvu7s0y6bfm4ddhagz.png)

For the items:
```
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/home2"
        android:icon="@drawable/exert_menu_bottom_icon_footprints_gradient"
        android:title="" />
    <item
        android:id="@+id/steps"
        android:icon="@drawable/exert_menu_bottom_icon_boost_gradient"
        android:title=""
        />
    <item
        android:id="@+id/transactions"
        android:icon="@drawable/exert_menu_bottom_icon_wallet_gradient"
        android:title=""
  />
</menu>
```
For the navigation:
```
<com.google.android.material.bottomnavigation.BottomNavigationView
            android:id="@+id/bottomNavigationView"
            android:layout_width="200dp"
            android:layout_height="60dp"
            android:layout_marginStart="200dp"
            android:layout_marginEnd="200dp"
            android:layout_marginBottom="20dp"
            android:background="@drawable/exert_menu_bottom_border_gradient"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:menu="@menu/bottom_nav" />
```

Questions that arise from this would be:
- Does anyone know another possibility than the bottomnavigation?
- How can I use the colored gradient for the selected page?
- Will this work with .png images or do they have to be .xml files?

Thanks for any contribution in advance

Ben
Help with Chart js React
Tags: webdev, javascript, react, chartjs
Published: 2023-05-03 07:45:34

Hey Guys, I'm working with chart js and I have 2 lines plotted on the graph, so the functionality which i want to implement here is on selecting any line I should be able to move the line by few months on the x-axis as shown in the above pic. any leads ?

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rs74742to7zpceocbs3h.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/awdk1c4okkzwu9cpeakt.png)
The Importance of Software Testing: How DocuWriter.ai Simplifies Writing Code Tests 🚀
Tags: webdev, programming, productivity, ai
Published: 2023-05-03 07:44:30

## Introduction

The software development lifecycle involves various crucial aspects, and one of the most important is software testing. The process of evaluating software to identify defects, errors, and inconsistencies helps ensure that the final product is reliable, secure, and efficient. In this article, we'll discuss how **DocuWriter.ai** 🌟 can be your ultimate solution for simplifying the code testing process and contributing to the overall quality of your software projects.

## Why Software Testing Matters

Software testing is essential for several reasons:

1. **Ensures Quality**: A well-tested application ensures that the final product meets the desired quality standards. By identifying and fixing bugs, software testing helps maintain the performance, security, and reliability of the application.

2. **Reduces Development Costs**: Detecting and fixing issues early in the development process is less expensive than addressing them later. Software testing helps identify problems before they escalate, saving time and resources in the long run.

3. **Enhances User Experience**: A thoroughly tested application provides a better user experience, as it is less likely to crash or have performance issues. This leads to increased user satisfaction and, ultimately, a more successful product.

## DocuWriter.ai: The Ultimate Solution for Simplifying Code Testing

**DocuWriter.ai** is the perfect tool for simplifying code testing and ensuring the overall quality of your software projects. It offers several key benefits:

1. 🎯 **Automated Test Generation**: DocuWriter.ai automatically generates code tests based on your source code, ensuring comprehensive test coverage and saving you valuable time.

2. ⏰ **Efficiency**: With DocuWriter.ai, you can create and update code tests quickly, streamlining the testing process and reducing the time spent on manual test writing.

3. 💪 **Improved Code Quality**: By simplifying the code testing process, DocuWriter.ai helps you maintain a high-quality codebase, ultimately resulting in better software quality.

### 🚀 Ready to revolutionize your code testing process? [Get started with DocuWriter.ai now!](https://www.docuwriter.ai)

## Conclusion

Software testing is a vital aspect of the software development process. By using DocuWriter.ai to simplify the code testing process, you can ensure comprehensive testing coverage, reduce development costs, and enhance the user experience. Embrace DocuWriter.ai to create reliable, secure, and efficient software applications.
Python best practices
Tags: python, beginners, programming, productivity
Published: 2023-05-03 07:34:07

Python is widely adopted programming language and the wide range of its community allows for its continuous improvement and optimization.

As continuous efforts are made to make the language easy for everyone and not sacrifice its efficiency, so many have written on best practices, the do and don't.

In this article, I share the best practices that I have gathered through my personal experience and research, carefully filtered to provide you with the most valuable insights.

### Avoid global variables

This appears in almost any programming article on "best practices", so I had to make it my number one point.

Writing global state variables comes with a lot of problems, like code readability issues, maintenance and namespace conflicts.

instead of global variables, you can instead use function parameters, local variables or class variables to minimize dependencies between different parts of your code.

### Use functions

The concept of DRY (Don't Repeat Yourself) emphasises the use of functions. Write reusable code for tasks that are going to appear in multiple parts of your code. This can greatly save time and reduces the amount of code you write.

Functions also help your code become modular, such that it allows you to break down complex code into smaller and more understandable ones.

### Use virtual environment

Virtual environments are super useful and save tons of time. It allows you to manage dependencies and isolate your project dependencies and environment from the rest of your system.

Virtual environments enable you to have different versions of packages for different projects without conflicts and can ensure your working environment with all its dependencies is easily reproducible on any system.

### Use exceptions

Exception handling allows you to catch errors without crashing your entire program. It provides a great way for you to identify errors without having to deal with the issue of your entire program falling.

Additionally, with exceptions you can customize different set of solutions for different types of errors.

### Write tests

This is really a challenge for the majority of us, but truth be told, tests take your experience to a whole new level.

Tests allow you to verify your code works as expected under different conditions and inputs. It also ensures safety when refactoring your code, and makes it easier to catch and fix bugs before they make their way to production.

**In conclusion,** writing high-quality Python code requires knowledge, skill and attention to best practices. These tips and guidelines I have provided will hopefully help you write better and more reliable code.

**Happy Coding!**
AccountAbstraction - Unlocking New Possibilities in the Blockchain World! 🌐💼
Published: 2023-05-03 07:21:40



What is Account Abstraction, you might ask?

Well, Account Abstraction is a groundbreaking concept that transforms EOAs into #smartcontracts , making them programmable by users. This opens up a whole new realm of possibilities for developers and users alike. 🎯

Here are some of the key benefits that Account Abstraction brings to the table:

🔒 Enhanced Security: With multiple signers, Account Abstraction provides an added layer of security, making transactions even more robust and reliable. Say goodbye to single points of failure!
💸 Batch Transactions: Account Abstraction allows for the approval and transfer of tokens in batches, streamlining the process and improving efficiency.
🔑 Recovery of Funds: Losing a privatekey can be a nightmare, but fear not! With Account Abstraction, funds can be recovered without relying on a private key.
⏸️ Temporary Halt of Fund Transfers: In case of a recovery effort or security concern, Account Abstraction empowers you to temporarily halt fund transfers. Your peace of mind matters!
💰 Gas Fee Flexibility: Paying #gasfees in any #token is now possible, thanks to Account Abstraction.

To Learn in-depth, read this full article written our Guest Author ARPIT KUMAR 👇
https://medium.com/buildbear/simplifying-account-abstraction-for-the-web3-world-8931be42031f
kind - Creating a Kubernetes Cluster - Part 1
Tags: opensource, docker, kubernetes, devops
Published: 2023-05-03 07:21:07

> In this article we will look how we can create a local Kubernetes cluster using kind

## Introduction

* Kubernetes has become the de facto standard for container orchestration in the modern cloud-computing world
    
* kind (Kubernetes in Docker) is a tool to create Kubernetes clusters running inside Docker containers
    
* Mainly used for testing and local development purposes
    
* Uses the same tooling and configuration as a production Kubernetes cluster
    

## Features

* Cost-effective — No need to worry about cloud bills
    
* Flexibility — No need to worry about breaking things
    
* Fast iteration — Easily test new features
    

## Installation

* Spin up a Linux machine, here I’m using Ubuntu 20.04.6 LTS
    

```bash
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
```

* Install Docker using the convenience script
    

```bash
$ curl -fsSL https://get.docker.com -o get-docker.sh

$ sudo sh get-docker.sh
```

* Add your user to the Docker group, log out and log back in. Now you can execute Docker commands as a normal user
    

```bash
$ sudo usermod -aG docker $USER
```

* Download and install kind binary from the releases page
    

```bash
$ wget https://github.com/kubernetes-sigs/kind/releases/download/v0.18.0/kind-linux-amd64

$ sudo install kind-linux-amd64 /usr/local/bin/kind
```

```bash
$ kind version
kind v0.18.0 go1.20.2 linux/amd64
```

* Download and install kubectl binary
    

```bash
$ curl -LO https://dl.k8s.io/release/v1.26.3/bin/linux/amd64/kubectl

$ sudo install kubectl /usr/local/bin/kubectl
```

```bash
$ kubectl version --client --output yaml
clientVersion:
  buildDate: "2023-03-15T13:40:17Z"
  compiler: gc
  gitCommit: 9e644106593f3f4aa98f8a84b23db5fa378900bd
  gitTreeState: clean
  gitVersion: v1.26.3
  goVersion: go1.19.7
  major: "1"
  minor: "26"
  platform: linux/amd64
kustomizeVersion: v4.5.7
```

## Usage

* Creating a cluster
    

```bash
$ kind create cluster --name dev
Creating cluster "dev" ...
 ✓ Ensuring node image (kindest/node:v1.26.3) 🖼 
 ✓ Preparing nodes 📦  
 ✓ Writing configuration 📜 
 ✓ Starting control-plane 🕹️ 
 ✓ Installing CNI 🔌 
 ✓ Installing StorageClass 💾 
Set kubectl context to "kind-dev"
You can now use your cluster with:

kubectl cluster-info --context kind-dev
```

* Interacting to cluster
    

```bash
$ kubectl config use-context kind-dev 
Switched to context "kind-dev".
```

```bash
$ kubectl get nodes
NAME                STATUS   ROLES           AGE   VERSION
dev-control-plane   Ready    control-plane   10m   v1.26.3
```

* Deploying workload to cluster
    

```bash
$ kubectl run nginx --image=nginx --port=80
pod/nginx created
```

```bash
$ kubectl get pods
NAME    READY   STATUS    RESTARTS   AGE
nginx   1/1     Running   0          22s
```

* Deleting cluster
    

```bash
$ kind delete cluster --name dev
Deleting cluster "dev" ...
Deleted nodes: ["dev-control-plane"]
```

## Reference

[https://kind.sigs.k8s.io](https://kind.sigs.k8s.io)
Nix Injector APK v1.74 Download for Android
Tags: appsync, mobile, hacktoberfest
Published: 2023-05-03 07:03:23

Nix Injector APK - MLBB Skin Hack Tool

Mobile Legends: Bang Bang (MLBB) cheat tool [Nix Injector APK](https://apkplanet.net/apps/nix-injector/) unlocks free in-game stuff. It's a free Android app that supports Android 11 and rooted devices. Ad-free and anti-ban.

Millions play this viral game, but it's hard to win without buying skins, effects, and goodies. This multiplayer online battle arena (MOBA) pits five-player teams against one other to demolish the other's base.

Many gamers like MLBB because of its many characters and gameplay options. Popularity can make it hard to get unique skins for your favourite characters.

Luckily, there's a solution. NIX Injector APK lets consumers download the best character skins. It also has hacks to improve gameplay.

Its basic UI makes it easier for non-technical gamers to enable the app. Simply download and install on your phone.

450+ skins
Millions play Mobile Legends: Bang Bang. It's a free, multiplayer online combat arena (MOBA). NIX Injector APK unlocks all 455 official [ML skins](https://apkplanet.net/apps/injector-ml-skin/).

This programme lets MLBB fans unlock the best skins and effects quickly and cheaply. The free Android app's straightforward UI makes it easy to install and use.

It also has a respawn effect and infinite character customisation. Imperial Sanctuary, Western Place, Celestial Palace, and Magic Chess are unlockable custom maps.

All characters have hundreds of skins.
The nix injector apk software includes amazing skins for all heroes and snipers. Skins include assassins, warriors, supports, and tanks. MLBB players need this app.

This software also has several amazing features that set it apart. Its respawn effect unlocks your favourite characters' respawn points. The game can be scaled up to 6x in a 360-degree view.

You also get infinite gems and gold and a personalised map to explore the game. Custom wallpapers and backgrounds are also great.
Debug application in Windows by GitHub Actions and action-tmate
Published: 2023-05-03 07:02:44

In this post I explain how to prepare Windows environment quickly for non Windows users.

I usually use macOS laptop. Sometimes I'd like to verify my OSS in Windows, but I have no Windows laptop. So I have to prepare Windows environment somehow.

When I worked on [aqua's Windows Support](https://aquaproj.github.io/docs/reference/windows-support), I used [Amazon Workspaces](https://aws.amazon.com/workspaces/).
Amazon Workspaces is useful,
but it's bothersome to launch an instance and set up development environment (Go, Git, etc).
And it costs. 💸

To solve the issue, I set up GitHub Actions Workflow using [action-tmate](https://github.com/mxschmitt/action-tmate).
You can launch a Windows runner by GitHub Actions workflow_dispatch and connect it via SSH using action-tmate.
Various tools are pre-installed in `windows-latest`, and you can also automate the set up by actions.
This is much easier than setting up Windows remote desktop from scratch.

Note that if GitHub Actions isn't free in private repositories.
In my use case the repository is public so there is no problem.

## Requirements

1. To restrict the SSH connection, you have to [create SSH key and register it to GitHub](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account)

## How to use

1. Run GitHub Actions Workflow via workflow_dispatch

[GitHub Actions Workflow](https://github.com/aquaproj/aqua/actions/workflows/debug-with-action-tmate.yaml)

![image](https://user-images.githubusercontent.com/13323303/235839303-8b96f68c-1c95-47b5-ae18-5ef950a6055f.png)

--

![image](https://user-images.githubusercontent.com/13323303/235840813-701eae50-3de8-4497-bfb5-8e8c1fde39b0.png)

3. Run `ssh` command in your terminal

```console
$ ssh yTNssfkqxN2bVCLvqYCn3csjS@sfo2.tmate.io
```

![image](https://user-images.githubusercontent.com/13323303/235841019-24af39fd-3cd7-4ea2-9191-425da0c7ee8b.png)

That's it. There are some restriction compared with desktop environment, but you can verify the application in Windows instantly.

## Reference

- https://github.com/aquaproj/aqua/issues/1920
How Do You Ensure That Your Code is Scalable & Maintainable?
Tags: discuss, beginners, codenewbie, interview
Published: 2023-05-03 07:00:00

This is a common interview question for new coders, and the goal in replying is to show the interviewer that you understand the importance of scalability and maintainability in coding, and that you have experience with techniques and best practices that help ensure these qualities in your code. 

CodeNewbies: How would you answer - or have you answered - this questions? 

Experienced Coders: How _do you_ ensure that your code is scalable and maintainable? And what advice would you give for answering this question?

---

Follow the [CodeNewbie Org](https://dev.to/codenewbieteam) and [#codenewbie](https://dev.to/t/codenewbie) for more discussions and online camaraderie!

{% embed [https://dev.to/t/codenewbie](https://dev.to/t/codenewbie) %}
Java Terminologies
Tags: java, beginners
Published: 2023-05-03 06:49:43

**Basic Terminologies**
1. **Class** : The class is a blueprint of the instance of a class. It is defined as a logical template that share some properties and methods

2. **Object** : It is an instance of class, entity that has behavior and state.

3. **Method** : The behavior of an object is the method

4. **Instance Variable** : Every object has its own unique set of instance variables.

**Syntax :**
1. Single line Comment : 
```
// this is a single line comment
```

2. Multi line comment:
```
/* this is 
a multi-line
comment
*/
```

3. Documentation Comment
```
/** Documentation */
```

**Source file name**
the name of a source file should exactly match the public class name with the extension of .java
ex: Simple.java

Java is case-sensitive language

**Class Names:** 
1. the first letter of the class should be in uppercase
2. If several words are used to form name of class, each inner word's first letter should be in uppercase.

**Method Names :**  all the method names should start with a lowercase letter

**Keywords :** are the words in a language that are used for some internal process or represents some predefined actions

ex: abstract, boolean, break etc
🎯 Sending flat files to Kafka
Tags: kafka, docker, productivity, devops
Published: 2023-05-03 06:41:54

Hello 🖐️ !

Following the mechanisms described [here](https://killercoda.com/opt-labs/course/kafka/kcat) to send CSV files into Kafka in JSON using [kcat](https://github.com/edenhill/kcat) through shell pipelines, we packed 📦 all of that in a new _home-made_ tool named [`producer-file`](https://hub.docker.com/r/optnc/producer-file). Here are the features :

- 💨 Sending line by line
- 💪 CSV to JSON conversion 
- 🔦 Support message headers by file and/or by line
- ⚡️ Delta-changes mode _(only send changes occurred after last send)_

☝️ More about the _shell_ way : 
{% embed https://dev.to/optnc/pipe-xlsx-files-intofrom-kafka-from-cli-with-kcat-plp %}

## Motivations 

Using `jq` + `kcat` with shell pipelines do the job well, but this doesn't fit the company's requirements today about software packaging and logging capabilities 🤷🏻‍♂️.

## 📽️ Demo

Short video demonstrating how to use this tool to send a CSV file in JSON into Kafka within a Docker environnement :

{% youtube _RV1JTkCcKk %}

## 📖 Ressources

- [:whale: producer-file](https://hub.docker.com/r/optnc/producer-file)
- [:ninja: Killercoda about the "shell way"](https://killercoda.com/opt-labs/course/kafka/kcat)
- [:feather: Kafka](https://kafka.apache.org/)
سناب تيوب
Tags: appwritehack, webdev, programming, javascript
Published: 2023-05-03 06:33:55

سناب تيوب هي منصة تسمح للمستخدمين بمشاركة مقاطع الفيديو الخاصة بهم مع الجمهور. تشبه هذه المنصة إلى حد كبير منصة يوتيوب، ولكنها تركز بشكل أساسي على مقاطع الفيديو القصيرة، حيث يمكن للمستخدمين تحميل مقاطع الفيديو التي تصل إلى 60 ثانية.

تستخدم سناب تيوب العديد من الميزات الشائعة في تطبيقات التواصل الاجتماعي، مثل التعليقات والإعجابات والمشاركة، ولكنها تتميز بالميزة الفريدة من نوعها التي تسمى "الكابح الزمني"، وهي ميزة تسمح للمستخدمين بإضافة وقت لمشاهدة مقاطع الفيديو قبل أن تختفي.

يمكن للمستخدمين في سناب تيوب تحميل مقاطع الفيديو الخاصة بهم بسهولة، ويمكنهم أيضًا متابعة حسابات المستخدمين الآخرين والتفاعل مع محتواهم. وتقدم المنصة أيضًا ميزات إضافية، مثل إمكانية تحرير الفيديو وإضافة المؤثرات البصرية والصوتية والعلامات المائية والنصوص والعديد من الخيارات الأخرى.

في النهاية، تقدم سناب تيوب للمستخدمين فرصة للتواصل والتفاعل مع الآخرين من خلال مشاركة مقاطع الفيديو الخاصة بهم، وتوفر لهم العديد من الخيارات لتحرير وتخصيص هذه المقاطع وجعلها أكثر جاذبية وتأثيرًا.
تحميل [سناب تيوب](https://an1web.com/snaptube/)