teleren/devto huggingface dataset:
Run ffmpeg within a Docker Container: A Step-by-Step Guide
Tags: ffmpeg, docker, containers
Published: 2024-05-26 04:26:12

Ffmpeg is a powerful multimedia framework, but installing it directly on your system can lead to dependency conflicts. Docker offers a cleaner solution: running ffmpeg within a container. This blog will guide you through the process in two approaches:

## Using a Pre-built ffmpeg Docker Image

### Pull the Image:

Open your terminal and use the following command to pull the official ffmpeg image created by jrottenberg:

```
docker pull jrottenberg/ffmpeg
```

### Run a Container:

Now, to run a container from this image and use ffmpeg commands inside it, use this command:

```
docker run -it jrottenberg/ffmpeg  bash
```

This will start a container, launch a bash terminal within it, and provide access to ffmpeg.

### Use ffmpeg:

Once inside the container, you can use ffmpeg commands just like you would on your system. For example:

```
ffmpeg -i input.mp4 output.avi
```

This will convert the video file "input.mp4" to "output.avi".

If the video file is on your host machine and you want to mount it directly, then the recommended way to use this command directly:

```
docker run --rm -v $(pwd):/data jrottenberg/ffmpeg ffmpeg -i /data/input.mp4 /data/output.avi
```

This command achieves the same conversion as before, but it runs ffmpeg within a temporary Docker container. The -v $(pwd):/data part mounts your current directory ($(pwd)) as /data within the container, allowing you to access your files using the /data path in the ffmpeg command.



### Exit the Container:

When you're done, simply type exit to exit the container and go back to your terminal.

Method 2: Building a Custom Dockerfile with ffmpeg

### Create a Dockerfile:

Create a text file named Dockerfile with the following content:

```
FROM ubuntu:latest

RUN apt-get update && apt-get install -y ffmpeg
```


This Dockerfile specifies using the Ubuntu image as the base and then installing ffmpeg during the build process.

### Build the Image:

In your terminal, navigate to the directory containing the Dockerfile and run:

```
docker build -t my-ffmpeg-image .
```

This builds a custom image named "my-ffmpeg-image" with ffmpeg installed.

### Run a Container from your Image:

Use the following command to run a container from your newly built image:

```
docker run -it my-ffmpeg-image bash
```

This will start a container based on your custom image, providing access to ffmpeg within the container.

### Choosing the Right Approach:

- If you need ffmpeg occasionally, using the pre-built image (Approach 1) is quicker.
- If you need more control over the ffmpeg version or want to include other tools, building a custom image (Approach 2) is better.

## Additional Considerations:

- You can mount volumes to share files between your system and the container for both approaches.
- Remember to replace "input.mp4" and "output.avi" with your actual file names.

This blog equips you to leverage ffmpeg within Docker containers, offering a clean and isolated environment for your multimedia processing tasks.
This SUPERIOR way ov defining enums in JavaScript!
Tags: javascript, webdev
Published: 2024-05-26 04:02:24

## The Standard Way ov Defining An Enum

In JavaScript, the standard way to define an enum – according to the TypeScript compiler – is:
```javascript
"use strict";
var Fruit;
(function (Fruit) {
  Fruit[Fruit["BANANA"] = 0] = "BANANA";
  Fruit[Fruit["ORANGE"] = 1] = "ORANGE";
  Fruit[Fruit["APPLE"]  = 2] = "APPLE";
})(Fruit || (Fruit = {}));
```

Or, if we strip the (unnecessary) mapping from number to string, we can do:
```javascript
"use strict";
var Fruit = {
  "BANANA": 0,
  "ORANGE": 1,
  "APPLE":  2
};
```

## The Better Way ov Defining An Enum

... However, there is a better way to define an enum – and the method  will ensure:
 1. the enum values are unique,
 2. the values can't be overriden,
 3. the definition is hoisted.

```javascript
var Fruit;
{
  Fruit = Object.defineProperties((Fruit = Object.create(null)), {
    BANANA: {writable: false,  value: Symbol("BANANA")},
    ORANGE: {writable: false,  value: Symbol("ORANGE")},
    APPLE:  {writable: false,  value: Symbol("APPLE")}
  });
}
```
JavaScript Concept : Memory Allocation(Stack and Heap) and Behavior
Tags: javascript, programming, beginners, deeplearning
Published: 2024-05-26 03:54:57

Good day everyone! Today we will discuss a JavaScript Concept Memory Allocation and Behavior. This concept is crucial to understand deeply on how JavaScript works. Learn alongside me and Enjoy reading!

### Goals and Objectives for this Topic:
- Understand how **_memory allocation_** and **_behavior_** function in:
 - Primitive types
 - Reference types

In JavaScript engines, there are indeed two primary memory spaces used for data allocation: Stack and Heap

#### Primitive Types
- **Storage:** Primitive types are stored in **_Stack Memory_** . The stack is generally used for static memory allocation, which includes fixed-size variables.

- **Value-based:** When you assign or pass a `primitive type`, it is _done by value_. This means that the actual value is copied.

##### Example:

```javascript
let a = 10;

let b = a; // Copies the value of a into a new memory spot for b

b += 5;    // Changes in b do not affect a

console.log(a); // 10

console.log(b); // 15
```

#### Reference types
- **Storage:** Reference types are stored in **_Heap Memory_**. The heap is used for dynamic memory allocation, where the size of the structure can change over time.

- **Reference-based:** When you assign or pass reference types, it is _done by reference_. This means that instead of copying the actual data, a reference (or a pointer) to the object in memory is copied.

Example:

```javascript
let obj1 = { value: 10 }; 

let obj2 = obj1; // Copies the reference, not the actual object

obj2.value = 15; // Changes the value via obj2 also affect obj1 

console.log(obj1.value); // 15 

console.log(obj2.value); // 15
```
## How JavaScript Manages Memory

JavaScript automatically manages memory with a garbage collector, freeing developers from manually deallocating memory. The garbage collector periodically frees memory used by data that is no longer accessible.


#### 1. Stack

- The stack is a Last-In-First-Out (LIFO) data structure used for storing:
 - Local variables declared within the function.
 - Arguments passed to the function.
 - The return address (where to return after the function finishes execution).
- It's fast and has a fixed size, pre-allocated by the OS. Once a function completes, its data is automatically removed, freeing space for new calls.
#### 2. Heap
- The heap is an unstructured, flexible memory area for dynamic allocation. It's slower than the stack but stores:
 - Global variables
 - Objects and arrays
 - Dynamically allocated data
- Garbage collection automatically reclaims unused memory, preventing leaks.

##### Summary of the key difference:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/p5hjpde8o4059bbgll2j.png)

Understanding the roles of the stack and heap is crucial for writing efficient JavaScript code. You should strive to minimize the use of global variables and large data structures within functions to optimize memory usage and avoid stack overflows. Thanks for reading ❤️❤️❤️!
How to Fix React Router's Scroll Position on Page Transitions
Tags: react, reactjsdevelopment, webdev
Published: 2024-05-26 03:41:58

When working on a React project recently, I noticed an odd behavior: whenever I navigated from one page to another using the navigation bar, the new page wouldn't start from the top. If I was on the footer section or anywhere below the navbar, the transition seemed abrupt, as if there was no smooth scrolling to the top of the new page.
The quick fix for this issue is to create a root layout if you don't have one already, and then make all other routes children of that layout element. Let's dive into the code.
Initially, my router configuration looked like this:

```
const router = createBrowserRouter([
  {
    path: "/",
    element: <Root />,
    errorElement: <ErrorPage />,
  },
  {
    path: "/about",
    element: <About />,
    errorElement: <ErrorPage />,
  },
  {
    path: "/contact us",
    element: <Contact />,
    errorElement: <ErrorPage />,
  },
]);
```
To resolve the scrolling issue, the first step is to create a layout component (e.g., layout.tsx or layout.jsx):


```
import { Outlet, useLocation } from "react-router-dom";
import { useLayoutEffect } from "react";

const Layout = () => {
  const location = useLocation();

  useLayoutEffect(() => {
    document.documentElement.scrollTo({ top: 0, left: 0, behavior: "instant" });
  }, [location.pathname]);

  return (
    <div>
{/* you could render your navbar  component here */}
      <Outlet />
{/* you could render your  footer component here */}
    </div>
  );
};

export default Layout;

```
Note: It's recommended to render your navbar and footer components within this layout instead of repeating them on every component.

Next, in your main entry point (e.g., main.tsx or wherever you have your router configuration), import the layout and use it as follows:

```
const router = createBrowserRouter([
  {
    path: "/",
    element: <Layout />,
    children: [
      {
        path: "/",
        element: <Root />,
        errorElement: <ErrorPage />,
      },
      {
        path: "/about",
        element: <About />,
        errorElement: <ErrorPage />,
      },
      // Add other routes here
    ],
  },
]);
```
With this configuration, whenever you navigate from one page to another, the new page should always start from the top, providing a smooth scrolling experience.
CONTROL DE PAGO
Tags: codepen
Published: 2024-05-26 03:15:34

En el control de pago.
Para úsalo correctamente.
Debes poner el monto que vas a transferir o cobrar.
Recuerda esto ...
Si das transferir y seleccionas las casillas que quiera se le envía al estado  que es la casilla 10 gris .

Si das cobrar las casillas seleccionadas le cobran al estado que es la casilla 10 gris.

As bien los movimientos para no ocasionar perdidas ni errores.


{% codepen https://codepen.io/Cristian-Guzm-n/pen/xxNEJEK %}
Docker Image vs Docker Layer
Published: 2024-05-25 15:19:55

**Docker image** is a static file that contains everything needed to run an application, including the application code, libraries, dependencies, and the runtime environment. It's like a snapshot of a container that, when executed, creates a Docker container.

A **Docker image** is composed of multiple **layers** stacked on top of each other. **_Each layer_** represents a specific modification to the file system (inside the container), such as adding a new file or modifying an existing one. Once a layer is created, it becomes immutable, meaning it can't be changed. 

**Docker Layer**
The layers of a Docker image are stored in the Docker engine's cache, which ensures the efficient creation of Docker images.

Layers are what compose the file system for both Docker images and Docker containers.

It is thanks to layers that when we pull a image, you eventually don't have to download all of its filesystem. If you already have another image that has some of the layers of the image you pull, only the missing layers are actually downloaded.
Monsgeek M7W Unboxing, Review
Published: 2024-05-26 02:42:35

<iframe src="//player.bilibili.com/player.html?isOutside=true&aid=1505117596&bvid=BV1qD42137Tf&cid=1558170676&p=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"></iframe>
[Monsgeek M7W Unboxing, Review_哔哩哔哩_bilibili](https://www.bilibili.com/video/BV1qD42137Tf/?spm_id_from=333.999.0.0&vd_source=710f85603b2d16e5fc915798062195d8)
MelodyLink: A Social Media App for Music Producers
Tags: devchallenge, awschallenge, amplify, fullstack
Published: 2024-05-26 02:40:31

*This is a submission for the [The AWS Amplify Fullstack TypeScript Challenge ](https://dev.to/challenges/aws)*

## What I Built
My app is a very simple social media app for music producers. Producers are able to post their tracks for others to see. Visitors can play the tracks and read what the artist has to say about them.

## Demo and Code
<!-- Share a link to your Amplify App and source code. Include some screenshots as well. -->

The demo of my app is at https://main.d1evgv1d8mr3bs.amplifyapp.com.

The code for the app is at https://github.com/h93xV2/melody-link.

For convenience, here are some screenshots. This one is a view of the homepage as seen by an anonymous guest:

![Homepage](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3ad2f1tvjghzkbioppa8.png)

This one shows a lists of posts from the perspective of a logged in user, note the additional "Delete" button not visible on the homepage:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/wr6zxb8xazemm9srh28c.png)

The delete option is only available to the creator of a post.

## Integrations
My app uses data, authentication, serverless functions, and file storage.
- Posts are stored using the Amplify data API.
- Users are able to login/logout via Amplify authentication. Anybody can view posts, but only authenticated users are able to upload and remove posts.
- A serverless function is used to check whether or not a given username is already taken.
- File storage is used for storing the tracks which are attached to posts.

**Connected Components and/or Feature Full**

My project used the Authenticator connected component to create a simple login/logout UX pattern; it also allowed me to give users the option for a preferred username. Additionally, I used the Storage Manager connected component for managing file uploads during post creation. See the following screenshot for a look at where the Storage Manager is used on the profile page.

![New post tab of the profile page](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fgg580gkaupn0edyr18z.png)

My project is feature full because it uses all four integrations. One of the hardest parts of this for me was figuring out how to check whether or not a username was already taken. To do this successfully, I had to figure out how to allow a serverless Lambda function access to Cognito's UserPool user list.

<!-- Let us know if you developed UI using Amplify connected components for UX patterns, and/or if your project includes all four integrations to qualify for the additional prize categories. -->

<!-- Team Submissions: Please pick one member to publish the submission and credit teammates by listing their DEV usernames directly in the body of the post. -->

<!-- Don't forget to add a cover image (if you want). -->
Cyanic Job Book - Project management software for land surveyors done right
Tags: invoicing, scheduling, timesheet, maps
Published: 2024-05-26 02:04:51

Cyanic Job Book is the leading project management solution for land surveyors and field service companies. It offers real-time monitoring of projects, faster invoicing, and improved error reduction and staff accountability. The software features a comprehensive job and client database, and makes it easy to search past jobs by legal address and show them on a map. It provides robust work-in-progress reporting tools and timesheet management, making payroll and invoicing easy. Additionally, it has a tasking and scheduling system to easily schedule and coordinate project tasks across teams in the field and the office.

[https://getjobbook.com](https://getjobbook.com)
🚀 Exploring Front-End Development with HTML, CSS, and React.js! 🌟
Published: 2024-05-26 01:36:31



Hey, #COdeWithKOToka! Ready to dive into the world of front-end development? Whether you're a beginner or looking to refresh your skills, here’s a quick guide to get you started!

🔹 HTML: The backbone of any website. It structures the content and gives meaning to your web pages. Think of it as the skeleton that holds everything together!

🔹 CSS: The artist of the web. CSS brings style, colors, and layout to your HTML, making your website look stunning and user-friendly. It's like the clothes your website wears!

🔹 React.js: The powerhouse for building dynamic and interactive UIs. Developed by Facebook, React helps you create reusable components, making your code cleaner and more efficient. It's the magic behind those slick, modern web apps!

💡 Why Learn These?

1. Career Boost Front-end development skills are in high demand.

2. Creative Freedom: Bring your ideas to life with beautiful and functional designs.

3. Community: Join a vibrant community of developers, designers, and creators.

🔥 Pro Tip : Start small! Build a personal project, like a portfolio website

#KEEPcodiNG
Why I came over to dev.to
Tags: programming, productivity, development
Published: 2024-05-26 01:35:32

Since starting my career as a software engineer, I've also started to write development blog posts, to remind what I've done during work, and also thought it could be helpful when I decide to look over better opportunity.

Now more than 10 years has been passed. And during that time, I've changed my blogging platform several times(Blogger, Wordpress, Medium, GitHub Pages, and more), for several reasons. 

Until last year, I was using `GitHub Pages` as my blog platform. Well, it looks something cool as a developer, it can make design template as you want(as long as you have time and skill), and no limitation on registering Adsense.

But recently I've thought about why I'm trying to write posts spending my time. There are some profits from Adsense, but it is very small, enough to ignore if there's other reason. And now, I'm starting to write my next post in `dev.to`. Here's the reason.

## Biggest reason: Deep dive into community
`dev.to` seems having vibrant and engaged community. In this platform, interaction with readers and other writers looks more genuine and collaborative. The platform fosters an environment where feedback is constructive, discussions are meaningful. These ambience makes it an ideal place for continuous learning and growth, and motivates like-minded people to join and communicates. This opportunity to build relationships is invaluable, and hard to find in other places.

## Comfortable to write technical posts
`dev.to` is specifically designed with developers in mind. It excels in supporting technical content, so make it easier to share code snippets, tutorials. The platform's markdown support is robust, and it integrates well with GitHub gists, making it a breeze to include code in your posts. Additionally, the audience here is more likely to be familiar with technical concepts. Which means, your content reaches readers who can fully appreciate and understand it.

### Focus on writing
Because of comfortableness which I've described above, you can just focus on writing things you want, without thinking of installing, or make settings for your technical snippets.

## Open Source Ethos
`dev.to` is built with an open-source mindset, which aligns with the values of many developers, including myself. The platform itself is open-source, meaning that anyone can contribute to its improvement. This transparency and inclusivity resonate with the principles of sharing knowledge and collaborating on projects that are so integral to the tech community.

## And now...
These are the features which makes me to start over my stories in `dev.to`. Well, I'm just on the starting line, and maybe I could find several disadvantages later. 

But til than, I'm planning to write about my knowledge, challenges during work, and projects I'm working on.
Best sites to practice your programming logic 💻
Tags: learning, train, javascript, python
Published: 2024-05-26 00:53:51

Hello everyone! Here are some of the best options (in my opinion) to practice and improve your programming logic:

- **[Codewars](https://www.codewars.com)**: Tackle programming challenges known as "katas" that range from beginner to advanced levels, in various languages.

- **[Adventjs](https://adventjs.dev/es)**: Participate in daily challenges during the holiday season. It's a great way to stay motivated and improve your skills with JavaScript.

- **[Hackerrank](https://www.hackerrank.com)**: A wide variety of programming problems and technical interview challenges in multiple languages. Perfect for preparing for job interviews.

- **[Exercism](https://exercism.org)**: Offers practical exercises in over 50 programming languages, with the option to receive personalized mentorship.

- **[Edabit](https://edabit.com/challenges)**: Practice with short and quick challenges, suitable for both beginners and more experienced programmers.

- **[Project euler](https://projecteuler.net)**: Mathematical and programming challenges that will help you improve your logical and algorithmic skills.

I hope you find these platforms useful and enjoy enhancing your programming skills. Happy coding!
LEGITIMATE RECOVERY TEAM FOR BITCOIN/CRYPTO ASSETS RECOVERY/FOLKWIN EXPERT RECOVERY.
Published: 2024-05-25 22:03:19


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/k56ri8c8ba6bx3wtqurj.jpg)


In the symphony of life, where discordant notes of betrayal and mistrust threaten to drown out the melody of trust and harmony, our tale unfolds as a crescendo of reconciliation and redemption. Amidst the cacophony of accusations and recriminations, my partner and I found ourselves ensnared in a tempest of financial misfortune and relational strife. Our journey into the labyrinthine world of investments began with the promise of prosperity and the allure of potential gains. Yet, as the curtain fell on our euphoria, the harsh reality of deceit and betrayal cast a shadow over our once-idyllic partnership. Accusations of financial malfeasance and emotional turmoil ensued, threatening to tear the fabric of our relationship asunder. Amidst the chaos of our discord, a serendipitous encounter with {FOLKWIN} Expert Recovery emerged as a beacon of hope amidst the darkness. Introduced to us by my repentant partner, their reputation as virtuosos in the realm of financial restitution preceded them, offering a glimmer of redemption amidst the wreckage of our shattered dreams. Initially met with skepticism and trepidation, their assurances of legitimacy and efficacy gradually permeated the walls of our doubt, paving the way for a tentative alliance born of necessity and desperation. With meticulous precision and unwavering dedication, they embarked on a journey of discovery, unraveling the intricate threads of our financial entanglement with surgical precision. Like virtuoso conductors orchestrating a symphony of redemption, {FOLKWIN} Expert Recovery deftly navigated the complex nuances of our case, conducting a harmonious melody of forensic acumen and digital prowess. Each transaction was meticulously dissected, each vulnerability unearthed, as they delved into the heart of darkness, shedding light on the clandestine machinations of our adversaries. In the crucible of adversity,{FOLKWIN} Expert Recovery  emerged as stalwart guardians of integrity and champions of justice, restoring our faith in the possibility of redemption amidst the wreckage of our shattered dreams. With their assistance, we reclaimed our lost funds and salvaged the remnants of our fractured relationship, emerging stronger and more resilient in the aftermath of our trials. In conclusion, the symphony of redemption orchestrated by {FOLKWIN} Expert Recovery  stands as a testament to the transformative power of forgiveness and the unwavering resolve of the human spirit.
To those adrift in the tumultuous seas of financial misfortune or relational discord, I implore you to heed the clarion Whatsapp:# +1 (740)705-0711 {FOLKWIN} Expert Recovery.{Or} Email:# Folkwinexpertrecovery @ tech-center . com , Website:# ww w.folkwinexpertrecovery.com .
In their capable hands, the cacophony of chaos gives way to a harmonious crescendo of reconciliation and redemption, offering solace and resolution to all who seek it. Kisses....
God Bless,
Annette O' Connor.