teleren/devto huggingface dataset:
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Tags: pkvgames, situspoker, dominoqq, bandarq
Published: 2021-03-02 20:33:58

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Video: Visualize the architecture of your Ruby app, in VS Code, in 2 / minutes
Tags: ruby, rails, webdev, architecture
Published: 2021-03-02 20:22:04

Here’s a video showing how to install, configure and use [AppMap for VSCode](https://marketplace.visualstudio.com/items?itemName=appland.appmap) with Ruby. 

Start to finish in less than 2 1/2 minutes!

This video uses the [official Rails Sample App 6th Edition](https://github.com/mhartl/sample_app_6th_ed/tree/eager-loading). Try it yourself!
Less obvious parts of security asymmetries, by Eugene Pilyankevich
Tags: cryptography, security, watercooler, riskmanagement
Published: 2021-03-02 19:54:27

>Open up a new approach to data security with [Eugene Pilyankevich] (https://www.linkedin.com/in/eugene-pilyankevich-59a31655/), CTO at [Cossack Labs] (https://www.cossacklabs.com/), [intellectual exercise] (https://ivychapel.ink/posts/less-obvious-asymmetries/) about infosec.
  
***
“If you’ve been around infosec industry for a while, you might be familiar with an old adage:
> defender has to get **most** (if not all) things right to meet his goals, while attacker has to get **a few things right** and he wins.

This is unfair, but the closer you look, the more asymmetries unfold: for example, what exactly does “get things right” mean? It’s an interesting mental exercise, so let’s do it together.

When we discuss “setting things up properly” and “getting things right” in a security context, we lack a proper “definition of done” for large-scale security systems and their subcomponents (security controls). Mostly because **our decisions are betting against unknown unknowns.** We go all the way to turn them into known unknowns by addressing two extremes of the spectrum and filling space in-between: from external risk to internal posture.

- **Moving from the outside**, we analyse known threats and think of our ways to protect against them.
- **Moving from the inside**, we look at attack surface, failure scenarios and in best cases ponder “what will we do about it?” before picking applicable standard and set of best practices.

Efforts meet somewhere in the middle, and if you’re doing it right - you already have a proper understanding of business risks related to security, made a set of risk management decisions, and are now staring at long lists of “do this and do that” coming from compliance requirements and best industry standards mapped onto your unique architecture and set of constraints.

**Unfortunately, it does not lead you to a definite answer - “did I get things right”?** Security failures after humongous budgets spent on security hint us that getting things right is either very hard or totally impossible.”
***
This was the first part of the CTO blog post by Eugene Pilyankevich. Get to the real kicker story here: [`I think the idea that “getting things right is very hard” has something to do with...`] (https://ivychapel.ink/posts/less-obvious-asymmetries/) or follow [@9gunpi] (https://twitter.com/9gunpi) and [@CossackLabs] (https://twitter.com/cossacklabs) for more data security insights.
What's confusing you about npm?
Tags: discuss, javascript, npm
Published: 2021-03-02 19:49:10

<blockquote><small><span>Photo by <a href="https://unsplash.com/@emilymorter?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Emily Morter</a> on <a href="https://unsplash.com/s/photos/confusion?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Unsplash</a></span></small></blockquote>

Let’s have an open floor to vent about things we don’t quite get about npm when using it in our daily lives (as well as alternatives like yarn).

Are you not sure why we need lockfiles? Do peerDependency warnings scare you? We don’t judge here. Do note that the purpose is not to bash the tool—I’m doing independent research to identify gaps and opportunities for better education.

Anything goes, but one scenario I’m particularly interested in is _application_ developers trying to create their first reusable _libraries_, which seems to be a common source of confusion. Whether that’s you or not though, I’m grateful for any and all responses 🙇‍♂️
More on Python Virtual Environments
Tags: python
Published: 2021-03-02 19:46:25

**My Original Article on [Virtual Environments](https://tuts.alexmercedcoder.com/2021/1/pythonvirtualenv/)**

In my previous article, I talked about two ways to create Python virtual environments using mkvirtualenv and pyenv. What I wasn't aware of at the time is that in Python 3.3 and above a native ability to create a virtual environment was added to python.

**REMINDER:** *The Reason we want to make virtual environments is to isolate our project dependency and manage dependency versions, kinda like what a package.json does for us in Javascript, a Gemfile in Ruby, cargo.toml in rust, composer.json in PHP, you get the idea.*

## How to Use the Native Venv Module

#### Create a New Virtual Environment

You may need to write python3, just make sure you're using the command that is python 3.3 or above. You can always run python --version or python3 --version to double-check. If you use pyenv you can manage what version of python the python command uses at any time.

```
python -m venv ~/path/to/where/venv/will/be/created
```

This will create all the folders in that file, so let's say I specified a folder in my current directory called "venv" as the target to create the venv. I can easily activate it like so.

```
source ./venv/bin/activate
```
* use the command "deactivate" to turn off venv

You'll then see it active in your terminal. Although remembering all that may be tricky. Below is some bash function you may want to add to ~/.bashrc or ~/.zshrc that'll make this process easier.

```
function newpyenv {
    mkdir venv
    python -m venv ./venv
}

function usepyenv {
    source ./venv/bin/activate
}
```

If you add this to bshrc/zshrc you can then restart your terminal and these commands will be active.

- newpyenv: Will create venv folder in your current folder and create a venv in that folder

- usepyenv: if you in a folder where the above command was run (the parent folder to the venv folder) run this command to activate the venv

- deactivate: this is always the command to turn off an active virtual environment

### Example

Let's say I create a "Flask" folder for creating Flask applications, I can create a virtual environment to share with all my flask apps by running "newpyenv" which I can then activate by running "usepyenv" in my Flask folder before jumping into one of my projects.

You could also use this on a per-project basis, whatever you prefer. Hopefully, these bash functions make your life easier!
STAR WARS CLI PROJECT
Published: 2021-03-02 19:40:05

I currently am enrolled in Flatiron School as a software engineer. I had my first CLI project and I did it on Star Wars it's a simple concept.

First I found an API then I got to work. I ran into a few problems such as using certain API's and not being able to find out how to display them when you ran the code. So I found this Star Wars one which was much simpler and had ID 1-10. It took some time and a lot of trial and error to develop I ran into all sorts of problems with instance methods and class methods(something I need to work on). Got a little help from fellow class mates and ended up getting the project done.

I am still currently reviewing the project and instance vs class methods as I still struggle to an extent. I have my review tomorrow and hopefully all this studying will end up paying off. If you'd like to view the project here is a Github link https://github.com/ewayne08/Starwars-API
The Complete Guide to Angular Security
Tags: angular, security, typescript, javascript
Published: 2021-03-02 19:20:25

Many frontend developers might see security as a non-functional concern, that is handled by the security department and that they instead should just focus on feature development. The reality is that learning about security actually forces you to gain knowledge about how the browser works thus it can make you a better Angular developer in general.

High-performing teams, in this day and age, are usually autonomous DevOps teams and use continuous delivery for faster feature delivery. This way of working is only possible if we, frontend developers, also take responsibility for the security as we build features.

Read more [here](https://christianlydemann.com/the-complete-guide-to-angular-security/).
Kounter, a simple PWA
Tags: beginners, showdev, react
Published: 2021-03-02 18:59:50

## Request
My mom is a teacher and wanted to have something easy where she can count up the participations of her students.

She asked for a straightforward solution, preferably a mobile app.

## Choice
I already have a Play Store account so I said to myself: "What a good opportunity to learn React Native!"

Before I got started, I verified if the whole process was fast enough... but I saw I had to re-install Android Studio and all the build tools needed for Android (see [here](https://reactnative.dev/docs/environment-setup)) and everything about Gradle and APK signing (see [here](https://reactnative.dev/docs/signed-apk-android)) brought me back bad memories...

So instead I chose to make a progressive web app with [Preact](https://preactjs.com/) (basically a lightweight React! 🚀).

I do not consider myself as a beginner in React but it was definitely the first time I was going to use functional components. I wanted to try those hooks! 😁

My other choices:

- I always use [pnpm](https://pnpm.js.org/) currently, this is a faster npm
- I generated the PWA with [Preact CLI](https://preactjs.com/cli)
- I wanted to try [PrimeReact](https://primefaces.org/primereact/showcase/#/) components with Preact
- I wanted to automatically build and publish my PWA on GitHub Pages with a CI pipeline

## Thinking

My mom can easily export each of her student groups to separate CSV files.

But because she wants to import data once, I figured out that having a single file with all the groups would be a good thing.

So this will be the only annoying she has to do: export all the groups and combine them into a single CSV file with a simple format.

She'll have to do this only once.

*Example of CSV file (names generated [here](http://www.listofrandomnames.com/)):*

| Group name| Students           |
| --------- | ------------------ |
| Group A   | Jalisa Daughtry    |
| &nbsp;    | Tisa Metellus      |
| &nbsp;    | Elba Kennison      |
| &nbsp;    | Johnna Goetzinger  |
| &nbsp;    | Monet Caine        |
| Group B   | Blair Gomes        |
| &nbsp;    | Angeles Ratley     |
| &nbsp;    | Lamonica Miner     |
| &nbsp;    | Elton Standley     |

All the data is persisted in `localStorage` so nothing is on a server, and there is no problem with GPDR and students.

## Resolution

You can see the code here: https://github.com/Drarig29/kounter
And a live demo here: https://drarig29.github.io/kounter

For beginners, I think this can be a good example for many things.

However, I didn't split anything, this is a quickly-made solution. So most of the logic is in [this file](https://github.com/Drarig29/kounter/blob/master/src/components/home/index.js).

I'm open to comments too! 😊
JavaScript Modules Versus Components
Tags: javascript, webcomponents
Published: 2021-03-02 18:39:51

---
title: JavaScript Modules Versus Components
published: true
description: Here's an intriguing job interview question — Can you describe the difference between a component and a module?
tags: #javascript #webcomponents
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fnunime98iry6d13rkuw.png
---
*Excerpted from [Medium.com](https://medium.com/javascript-fanboi/2021-037-javascript-modules-versus-components-dcaeeb0b3b8d)*

In JavaScript we learn that “A module is just a file. One script is one module. As simple as that.”

But of course nothing is simple in JavaScript: there are AMD modules, CommonJS modules, UMD modules, and native ES modules.

And when we finally wrap our heads around the module mess, we’re still left with a variety of definitions for “component”, which is where the confusion begins to get opinionated.

Way back in 2011, the Web Hypertext Application Technology Working Group (WHATWG) defined the Component Model to complement its work on the all-important Document Object Model (DOM).

To quote from the WHATWG wiki: “The Component Model introduces comprehensive support for creating DOM elements.” And it goes on to explain that “the Component Model formalizes the concept of loosely coupled, coherent units of behavior in the Web platform.”

This was at a time in history when you could explain it this way — to the delight of everyone: “Examples include layout managers, combinations of Dojo and jQuery widgets, isolated widgets, such as Like/+1 buttons, and built-in HTML elements themselves.”

Lately, I’ve been hearing the phrase “vanilla JavaScript” used to indicate that no framework or library is involved in a coding solution. So in a similar fashion, it appears that “vanilla component” could be a good way out of this mess. Personally, I like to call them [DOM Components](https://domcomponents.com/?utm_term=JavaScriptModulesVersusComponents), giving credit where credit is due.
An Introduction to JavaScript Programming
Tags: javascript, beginners, webdev
Published: 2021-03-02 18:16:29

**JavaScript** is a high-level, lightweight, interpreted programming language. And it is most well known as the scripting language for Web pages, and non-browser environments. JavaScript is a prototype based, weakly typed, multi-paradigm, single-threaded, dynamic language, supporting object-oriented, imperative, and declarative styles. JavaScript was designed by **Brendan Eich** in 1995. The standard for JavaScript is ECMAScript. ECMAScript 6 (or ES6) is the latest major version of the ECMAScript standard.

JavaScript is the programming language of HTML and the Web. Alongside HTML, CSS, and JavaScript is 3 core technologies of World Wide Web.

![Alt Text](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3kuk7wplygjn9rue1dxq.jpeg)


## JavaScript Frameworks

There are many JavaScript frameworks available. JavaScript is versatile and can be used for both frontend and backend development as well as for testing websites or applications as well.

Below frameworks are the most popular JavaScript frameworks in the current time on worldwide webs.

*React JS, Vue JS, Angular JS, Ember JS, Preact JS, Svelte Js, Meteor JS, Mithril, Node JS, Polymer, Aurelia, Backbone JS, Express JS, Next JS, Gatsby JS, Nuxt JS, jQuery, Jest, Mocha, Jasmine.*

![Alt Text](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hqlu2w1tbm8xdjihz5da.jpg)


## Advantages of JavaScript

### Speed
JavaScript tends to be very fast because it is often run immediately within the client's browser. So long as it doesn't require outside resources, JavaScript isn't slowed down by calls to a backend server. Also, there's no need to compile the code before running it.

### Simplicity
JavaScript is relatively easy to learn and implement compared to other popular languages.

### Popularity
JavaScript is everywhere on the web. There are countless resources to learn JavaScript.

### Interoperability
JavaScript can be inserted into any web page. JavaScript can be used in many kinds of applications because of support in other languages.

### Server Load
JavaScript is client-side, it reduces the demand on servers overall, and simple applications may not need a server at all.

### Rich interfaces
JavaScript can be used to create features like drag and drop and components such as sliders, all of which greatly enhance the user interface and experience of a site.

### Extended Functionality
Developers can extend the functionality of web pages by writing snippets of JavaScript for third party add-ons.


## Disadvantages of JavaScript

### Client-Side Security
Because code is executed on the client-side, bugs and oversights can sometimes be exploited for malicious purposes. Because of this, some people choose to disable JavaScript entirely.

### Browser Support
Different browsers sometimes interpret JavaScript code differently. This makes it somewhat difficult to write code for cross browser.
JAVASCRIPT my Kryptonite
Tags: webdev, motivation, beginners, spanish
Published: 2021-03-02 18:02:43

I had already been told that javascript is the great wall where many brave people fall and abandon the battle.
No wonder, after seeing HTML and CSS we said "ah, all this is easy" and then we see that big yellow + black JS logo when everything changes and becomes "programming".
What is difficult? something depends on each one, the desire they have and the work they take, but I also think it depends on who teaches you.
My recent experience in a Bootcamp was that when I arrived at JS everything became very technical (maybe too much), to that add that the instructor mixed concepts from other languages ​​making everything even more confusing, even more, chaotic for beginners, I felt like I was wanting to learn English but the teacher mixed French and Chinese in between.
I decided to try other free platforms, and I understand some concepts better in a Youtube course.

But it's not the instructor's fault (at least not entirely).
I have a certain attention problem, my mind wanders in other directions while I stare at the teacher on my pc screen, I see him speak and write code, but my mind flies to things like "How do Alpha and Beta die in TWD?", Or if my dog ​​Sheldon ate or is still waiting for me to fill his plate.

So I discovered that I have to change every 1 hour of course so as not to get too bored and refresh my mind with each mentor, so I am varying between three courses/classes on javascript, one hour here, one there, and one beyond.

Surely you will say "but it is very confusing!", not for me, I have caught myself saying out loud "aaaaah!" by basically understanding some concept given by some teacher and understood by another.

I usually say "Aaah so that's what that instructor meant!", this happens to me haha!

I know that JS is a steep mountain, that many find it difficult (including me) but that you have to cross, you do not have to avoid it, it is useless to hide, every time we poke our head, there will be Javascript waiting for us to go for it.
An Easy Way to Setup Tailwind with NEXT.js
Tags: nextjs, tailwindcss, react, webdev
Published: 2021-03-02 17:48:47

Learning new front-end JS and CSS utility frameworks have a steep learning curve. What makes this process even harder and annoying is the myriad NPM packages one has to install before they get to write a single line of code.

Fortunately, the developers of NEXT.js have taken care of all the boring config jargon for us, so we can get back to building our favorites static sites.

All you need to do is install either of these NPM packages.

`npx create-next-app --example with-tailwindcss with-tailwindcss-app` 

__or__
 
`yarn create next-app --example with-tailwindcss with-tailwindcss-app `

That's it! Hope you have found this useful.
What I Learnt so far??
Tags: 100daysofcode, beginners
Published: 2021-03-02 17:37:57

1.How to get started with reactjs with vscode.
2.Must have extension as a reactjs-developer.
3.Hello React program.
4.what is jsx,
5.What is jsx attribute.
6.what is and how to use React fragment.
7.what is component and how to create a component in react.
8.what are props in react.
9.how to install and use material-ui icons in react.
10.what is state.
11.waht are React hooks
12.what is destructing and examples.
13.what is and how to use useState hook.
And so on....