teleren/devto huggingface dataset:
Exploring Svelte Components: Reusable and Reactive Building Blocks
Published: 2023-08-15 14:35:15

Welcome back, developers! In our journey to uncover the magic of Svelte, we've taken our first steps into the realm of efficient web development. Today, let's delve deeper into the heart of Svelte's power - its components.

## Understanding Svelte Components

At the core of Svelte's approach lies the concept of components - modular, reusable building blocks that encapsulate both logic and presentation. Components allow you to break down your application into manageable pieces, promoting code organization and maintainability.

## Reusability Made Easy

Creating a reusable component in Svelte is a breeze. Simply define your component using the same script, style, and HTML structure we explored earlier. Then, you can use your component across multiple parts of your application. It's like LEGO blocks for web development!

**Importing Components and Testing Reactivity**

Want to take your components to the next level? Svelte makes it easy to import components and maintain their reactivity. By importing and using components in different parts of your app, you're embracing the power of modular design. Plus, Svelte's reactivity ensures that changes in one component ripple through others seamlessly.

### Importing Components

To import a component in Svelte, you can use the following syntax:

```svelte
<script>
  import CustomAlert from './CustomAlert.svelte';
</script>
```

Now you can use the CustomAlert component in your markup!

Example: Creating a Reusable Button Component

Imagine you want to create a reusable button component that can be used across your app. Here's how you can achieve this:

1. Create a new file named Button.svelte:

```
<script>
  export let label;
  export let onClick;
</script>

<button on:click={onClick}>{label}</button>

<style>
  button {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
  }
</style>
```

2. Import and use the Button component in your main component:
```
<script>
  import Button from './Button.svelte';

  let count = 0;

  function increment() {
    count += 1;
  }
</script>

<main>
  <h1>Reactive Counter</h1>
  <p>Count: {count}</p>
  <Button label="Increment" on:click={increment} />
</main>

<style>
  main {
    text-align: center;
    padding: 20px;
  }
</style>
```

## Conclusion
By harnessing the power of Svelte components, you unlock the ability to build scalable, reusable, and reactive web applications. From importing components to testing reactivity, Svelte simplifies the complex. As we continue this journey, get ready to dive into animations and transitions, adding a new layer of dynamism to your projects.

Stay curious and keep coding, as we uncover more of Svelte's amazing toolkit. Your web development toolkit is evolving, one component at a time.
The Ultimate Guide to High Performance WordPress
Tags: wordpress
Published: 2023-08-21 21:08:12

---
title: The Ultimate Guide to High Performance WordPress
published: true
date: 2023-08-15 14:35:11 UTC
tags: WordPress
canonical_url: https://www.freecodecamp.org/news/the-ultimate-guide-to-high-performance-wordpress/
---

There are many strategies you can do to increase the performance of your WordPress websites and other websites. In this guide, we'll show you how to identify and fix performance issues for good. This guide combines over 20 years of experience of fine-tuning servers, CDNs, and website code to deliver
Write code that helps your users
Tags: development, productivity, discuss, saas
Published: 2023-08-15 14:34:03

---
title: Write code that helps your users
published: true
description: As web developers our first mission is to help end users. 
tags: development, productivity, discuss, saas
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/dckm8jbor5c7phv3r9we.jpg
---

We all know web developers that are so busy doing _"technical"_ things that they don't have time to think about end users.

For them development is all about patterns, abstractions, refactors, technical debt (in another post I'll explain why technical debt doesn't really exist)...

Don't be one of those developers.

You write code to solve problems to the users of your application. Every time you are working on something that adds no value to those users **you are doing it wrong**.

It's been a productive day of work if you have made things faster for your users, if they need to click one less thing to perform their job, if a dashboard has the new data they've been requesting, better accessibility...

You have a job because your application has users. It's those users that pay your salary, not your company.

Prioritise work that improves the life of your users over work that only helps you and your fellow developers. Your priority is to make things easy for the users not for yourself. If you can have both then that's perfect but if you need to choose there is only one right choice.

In an ideal world we have unlimited time and resources but more often than not you need to take decisions. There are trade-offs to be made. 

One of things that differentiates a senior developer from the rest is their ability to make those trade-offs. Another one is that they used to have user metrics in their dashboards. Application and server monitoring is absolutely necessary and so it is knowing what users do on your platform.  How many times they access the application? What sections do they visit? What actions they perform the most? What reports they use?

Remember, the code you write is just a means to an end: Helping users on their daily tasks. Everything else can wait.

Cover image by: [Nikkotations](https://unsplash.com/@nikkotations)
#01QuickTips: Python
Tags: python, tip, programming, tutorial
Published: 2023-08-15 14:06:51

In this first post, I'll provide some tips for beginners in the Python world, covering the main useful commands that are simple to use in exploratory analysis.

---

## **Comments:**

Use the "#" character to start a comment on a line. Comments are useful for adding explanatory notes to your code and are not executed by the Python interpreter.

```jsx
# This is a comment
```

---

## **Line Breaks:**

To split code across multiple lines, you can use the backslash "" at the end of each line or place it between parentheses, brackets, or braces.

```jsx
# Using backslash
x = 10 + \
    20 + \
    30

# Using parentheses
y = (10 +
     20 +
     30)

# Using brackets
lista = [1, 2,
         3, 4]

# Using braces
dicionario = {'a': 1,
              'b': 2}
```

---

## **Indentation:**

Python uses indentation to delimit code blocks, instead of using curly braces or special keywords. Make sure to maintain the same indentation within a block to avoid syntax errors.

```jsx
# Example of indentation
if x > 0:
    print("x is positive")
    print("Still inside the block")
print("Outside the block")
```

---

## **Printing to the Screen:**

Use the **`print()`** function to display messages or values on the standard output.

```jsx
name = "Ana"
print("Hey there,", name)

x = 42
print("The secret value of x is:", x)
```

---

## **User Input:**

Use the **`input()`** function to receive user input. Remember that the result of **`input()`** is always a string, so you might need to convert it to other types if necessary.

```jsx
name = input("What's your name? ")
print("Welcome,", name)
```

---

## **Assignment Operators:**

Python provides several useful assignment operators to perform common operations in a single line.

```jsx
x = 10  # Simple assignment
x += 5  # x = x + 5
x -= 3  # x = x - 3
x *= 2  # x = x * 2
x /= 4  # x = x / 4
```

---

## **Importing Libraries:**

Use the **`import`** keyword to import libraries and modules into your code. This allows you to access additional resources and functions provided by these libraries.

```jsx
import math

x = math.sqrt(25)
print(x)

from datetime import datetime

now = datetime.now()
print(now)
```

---

## **Shape**

Returns a tuple representing the number of rows followed by the number of columns in a dataset:

```jsx
df.shape
```

---

## **DataFrame Columns**

Returns all columns, separated by commas, that compose a dataset. Very useful to recall which columns make up the dataset after transformations or even during exploratory analysis:

```jsx
df.columns
```
📚 ReactJS vs Next.js 🌐
Published: 2023-08-15 13:39:27

***Both ReactJS and Next.js are popular frameworks for building web applications, but they serve different purposes and have different features. The choice between them depends on your specific requirements and the nature of your project. 🤔***

*ReactJS ✨*
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/llqdh3ur3100ieqe5m6j.png)
_1️⃣ ReactJS is a JavaScript library for building user interfaces. It focuses on the UI layer of the application.
2️⃣ It provides a component-based architecture, allowing you to create reusable UI components.
3️⃣ ReactJS is primarily used for single-page applications (SPAs) where the entire application runs in the browser.
4️⃣ It offers a virtual DOM (Document Object Model) which helps optimize performance by efficiently updating only the necessary parts of the UI when there are changes.
5️⃣ ReactJS is highly flexible and can be used with other libraries or frameworks for managing state, routing, and other functionalities.
6️⃣ ReactJS requires additional configuration and setup to handle server-side rendering (SSR) or static site generation (SSG) out of the box._



**Next.js ⚡**
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/5nucxx3t4aors30at1j7.jpg)
_1️⃣ Next.js is a framework built on top of ReactJS. It extends ReactJS's capabilities and provides additional features for building server-side rendered (SSR) and statically generated (SSG) applications.
2️⃣ Next.js simplifies the process of creating SSR and SSG applications by offering built-in routing and server-side rendering capabilities.
3️⃣ It provides an easy way to handle dynamic routes, data fetching, and server-side rendering with minimal configuration.
4️⃣ Next.js has built-in support for SEO (Search Engine Optimization) and performance optimization, such as automatic code splitting and caching.
5️⃣ It offers features like pre-rendering, which generates static HTML files at build time, resulting in faster loading times and better SEO.
6️⃣ Next.js includes other functionalities like API routes, file-based routing, and built-in CSS support._

In summary, if you're building a simple UI-focused application or a single-page application, ReactJS might be the right choice. However, if you require server-side rendering, static site generation, or want to take advantage of the additional features provided by Next.js, it would be a better fit. Ultimately, the choice depends on the specific needs and complexity of your project. ✨👨‍💻
Automate CloudFront Cache Invalidation
Tags: aws, cloudfront, cloudcomputing
Published: 2023-08-15 13:57:42

If you are using CloudFront distribution to serve your users, it will be good to be able to automate cache invalidation by using this command:

Replace stackName with the name of your Cloudformation stack.
```bash
distributionId=$(aws cloudformation describe-stacks --stack-name stackName --query "Stacks[0].Outputs[?OutputKey=='DistributionId'].OutputValue" --output text)

echo distributionId

aws cloudfront create-invalidation --distribution-id $distributionId --paths "/*"
```
Spotlight on 2023's Leading Frontend Build Systems
Tags: webdev, javascript, react, typescript
Published: 2023-08-15 13:53:53

**1. Webpack 6**
Webpack has always been at the forefront of module bundling. With its sixth iteration, it has further improved its game.

```javascript
// webpack.config.js
module.exports = {
  entry: './src/index.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  },
  module: {
    rules: [{ test: /\.tsx?$/, use: 'ts-loader', exclude: /node_modules/ }]
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js']
  }
};
```

**2. Rollup v3**
Rollup, known for its efficiency in tree shaking, has come up with even more advanced configuration options.

```javascript
// rollup.config.js
export default {
  input: 'src/main.js',
  output: {
    file: 'bundle.js',
    format: 'cjs'
  },
  plugins: [resolve()]
};
```

**3. Parcel v4**
Parcel's focus has always been on providing a zero-config experience. Its fourth version takes it up a notch with better default behaviors.

```javascript
// No configuration required. Just run:
$ parcel src/index.html
```

**4. Snowpack v5**
Snowpack's emphasis on unbundled development has made it a unique choice. It continues to optimize ES Module imports in 2023.

```javascript
// snowpack.config.mjs
export default {
  mount: {
    public: '/',
    src: '/_dist_'
  },
  plugins: ['@snowpack/plugin-react-refresh']
};
```

**5. Vite v3**
Developed by the creator of Vue.js, Vite has been gaining traction due to its speed and simplicity.

```javascript
// vite.config.js
export default {
  plugins: [vue()],
  build: {
    outDir: 'dist',
    assetsDir: 'assets'
  }
};
```

**Wrapping Up**
Each of these systems has its strengths and unique features. The choice often boils down to the project's specific needs and the developer's preference. However, the ongoing trend is clear: faster build times, more intelligent defaults, and seamless integration with modern web technologies.

--------------------------------------------------------------

Remember, while these code snippets provide a glimpse into configurations and commands for these tools, it's essential to consult official documentation for a more in-depth understanding and a detailed setup guide.
Mine XMR with OLD devices + Raspberry Pi! 💰
Tags: tutorial, ubuntu, cryptocurrency, raspberrypi
Published: 2023-08-15 13:53:10

Do you have old computers or laptops that are actually too weak to mine Bitcoin, Ethereum, etc.? Most of the time it's because you don't have enough power to really mine.

---

If you like our articles, we would appreciate a Like :heart: and a comment!

---
Today we will show you a way how it still works - even without a graphics card and only with the CPU of the computer!

## Install Ubuntu
We need a Linux operating system for mining. We recommend Ubuntu.

## Installing the miner
We mean Monero, XMR for short. To do this, we need to run a few codes to make everything work!

```
sudo apt-get install git build-essential cmake libuv1-dev libssl-dev libhwloc-dev
```

```
git clone https://github.com/xmrig/xmrig.git
cd xmrig
```

```
mkdir build
```

```
cd build
```

```
cmake ..
```

```
make
```
You can just copy and paste that and everything will be installed!

When the installation is done you need to change to the correct directory if you are not already inside:

```
cd xmrig
cd build
```
Now all we need is the code to start mining. That would be this one:

```
./xmrig --donate-level 0 -o gulf.moneroocean.stream:10128 -u 43BmAuo2CsdgU6JQwp7X2g7mkK2j9ifnBei5s1xurnL5PJk9aczn2ftHSxML63fCpeanZigZk17Um6fXg4Pm5rw67zNQGVS -p MinerSchächner
```
After the "-u" comes your miner address, which is best created with myMonero.

After the "-p" is simply the miner name, which can also be changed.

To check how much you've mined, switch to

[moneroocean.stream](https://moneroocean.stream/) -> Adblocker must be deactivated!

Here you enter your XMR address and you can then see at what speed you are currently mining. However, it may take a few minutes for anything to appear here. In Ubuntu, too, the terminal in which you ran the code must always remain open! From 0.003 XMR there is then the first payout - that happens automatically!

If you have any questions or want more Crypto guides, feel free to post them in the comments!

Thanks for reading,
Schächner
Uni-versing Neeram - Page 35
Published: 2023-08-15 13:46:44

- நைட் எல்லாம் வாட்சப்ல  மொக்கை போடறது,  லேட் நைட்ல தூங்குறது’ மதன் கூற ‘லவ் பண்றவங்க இது கூட பண்ணலன்னா அப்றம் அந்த லவ்வுக்கு அர்த்தம் இல்லடா, அெதல்லாம் உன்ன மாதிரி சாமியாருக்குப் புரியாது’
- ‘ஏன் stomachக்ல bell அடிக்குதா?’
- நேத்து பிரண்டு,  இன்னைக்கு குட் பிரண்டு, நாைளக்கு பாய்பிரண்டு, அப்புறம் அஸ்பண்டு’

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/e1wc2uu7un1cpkmhtl4y.png)

- Before '@' it's the user-name who logged in.
  '~' current folder home . /home/testing
  after '@' is the computer name.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1lqd350kaoavx8z672yg.png)

- Even terminal is also a process. Some commands will be seen today,

```
pwd
cd
absolute - cd Downloads & relative path - cd /home/testing/Downloads/
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/iu87mf6tq9b74qcmuww2.png)

```
'~'--> home directory
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qstc7vb21s4vy33q1txa.png)

```
'cd -' --> this will go to the last folder used.
ls -R  --> what are all the folders or files which are present inside the directory 
```
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ov9xd1s7xetohkdeh6qd.png)

```
mkdir -p one/two/three --> this will create folder inside folder.
```

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/aw6jn01z2oxjgxf7ze38.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bpogr9u67quz0e8kmhak.png)

```
rm -fr / --> entire file system will be taken 
–no-preserve-root --> man page of rm
df -h
du -sh .
mount
find . -mtime +730 
```

- 'இைசஞானி அப்படின்னு ஒருத்தர் இருக்காேர அவர பிடிக்காதா?’
பிளாக், பியூர் பிளாக்
- Light Milky white
- இருவரும் சிறிது நேரம்  பேசிக்  கொள்ளவில்லை ஆனால் அவர்கள் கண்கள் பேசாமல்  இருக்கவில்லை.
kubectl Installation - Ubuntu & Windows
Tags: kubectl, kubernetes, cloudnative
Published: 2023-08-15 13:43:37

## Ubuntu

Install some prerequisite packages

```bash
sudo apt update
```

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

Install Homebrew using the provided convenience script

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

Add Homebrew in our system PATH using the below commands

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

```bash
eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
```

Verify the version and install the recommended gcc package

```bash
brew --version
```

```bash
brew install gcc
```

Turn off Homebrew anonymous aggregate user behavior analytics

```bash
brew analytics off
```

Install kubectl and verify its version

```bash
brew install kubectl
```

```bash
kubectl version --client --short
```

## Windows

Open a Powershell terminal (version 5.1 or above) and execute the below commands to install Scoop

```powershell
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
```

```powershell
irm get.scoop.sh | iex
```

Install kubectl and verify its version

```powershell
scoop install kubectl
```

```powershell
kubectl version --client --short
```

## Reference

[https://brew.sh/](https://brew.sh/)

[https://scoop.sh/](https://scoop.sh/)

[https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/](https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/)
Monthly Amazon Location Service Updates - 2023.07
Tags: amazonlocationservice, amplifygeo, amplify, amazonlocationserviceupdates
Published: 2023-08-15 13:42:12

![img](https://day-journal.com/memo/images/logo/aws/location-service.png)

### Monthly Amazon Location Service Updates - 2023.07

<br>

This is a summary of the July updates for Amazon Location Service.

<br>

## 2023.07 Updates

[Amazon Location Service now supports API Keys for Maps, Places, and Routes](https://aws.amazon.com/about-aws/whats-new/2023/07/amazon-location-services-api-keys-maps-places-routes/)
API key functionality for maps, geocoding, and routes is now generally available.

[Amazon Location Service now supports publishing device position updates on EventBridge](https://aws.amazon.com/about-aws/whats-new/2023/07/amazon-location-service-device-updates-eventbridge/)
Amazon Location Service now supports publishing tracked device position updates on Amazon EventBridge.

[Amazon Location Service releases a new SDK for JavaScript](https://docs.aws.amazon.com/location/latest/developerguide/dev-location-libraries.html)
A new open-source SDK for JavaScript is now generally available.

<br>

## Other Info

[Amazon Location Service Developer Guide](https://docs.aws.amazon.com/location/latest/developerguide)
Official Amazon Location Service Documentation.

[Amplify Geo Docs](https://docs.amplify.aws/lib/geo/getting-started/q/platform/js)
Official Amplify Geo Docs.

[Amazon Location Service Samples](https://github.com/aws-samples/amazon-location-samples)
Official Amazon Location Service samples.

[amazon-location-service-starter](https://github.com/dayjournal/amazon-location-service-starter)
Build environment to get started with Amazon Location Service.

[A Summary of How to Build Amplify Geo and Amazon Location Service](https://dev.to/aws-builders/a-summary-of-how-to-build-amplify-geo-and-amazon-location-service-5hal)
Summary of Amazon Location Service and Amplify Geo. (as of December 2021)  

[dev.to](https://dev.to/dayjournal)
Articles on Amazon Location Service.

[tags - Amazon Location Service](https://day-journal.com/memo/tags/Amazon-Location-Service)
[tags - Try](https://day-journal.com/memo/tags/Try)
Notes on Amazon Location Service. (Japanese)

<br>

## Related Articles

{% link https://dev.to/aws-heroes/monthly-amazon-location-service-updates-202306-4fmg %}