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Webriche: les veilleurs ne dorment jamais...

Ci dessous, les actualités de quelques sites qui ont tout mon intérêt (à différents niveaux).

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9 Janvier 2022 (60)

1: Write Once, Run Everywhere (Part 3 of N)

Hashnode - javascript (Javascript)

Save Data to Remote Storage For Later Retrieval The entire reason I'm writing these articles is because I'm attempting to get to a place where I can : Store a user's data Retrieve the user's data Make it possible for the user to save/retrieve data n...

2: How to easily validate request data using express-validator in Node.js

Hashnode - javascript (Javascript)

When working with Node.js it is very common to receive data in request (body, query, params), and based on that data we perform some operations on DB and return the results. Since the data will be coming from external resources like Client-side UI (b...

3: How to easily validate request data using express-validator in Node.js

Hashnode - javascript (Javascript)

When working with Node.js it is very common to receive data in request (body, query, params), and based on that data we perform some operations on DB and return the results. Since the data will be coming from external resources like Client-side UI (b...

4: Como ativar a ferramenta de depuração interativa Gtk Inspector

Hashnode - python (python)

O Gtk Inspector é sem duvidas é uma das ferramentas mais importantes quando se está desenvolvendo um aplicativo Gtk. Através dele é possível analisar diversos parâmetros de um determinado aplicativo e até mesmo realizar alterações no estilo visual (...

5: How to add Dark theme to your website using HTML CSS JavaScript' (Short Answer)

Hashnode - javascript (Javascript)

To create dark theme you need first to create HTML toggle element (usually element), second to create CSS variables to be used by both themes (light and dark), and third create event listener to add and remove class name from HTML element. ...

6: Can we use a transpiler instead of a compiler'

Hashnode - Kotlin (Mobiles)

Why do we need a compiler' In computer programming, we give the computer or to machine certain tasks which we don't want to do again and again and which will reduce our effort in day to day life. But how do we give the computer that task or order' We...

7: Reasons to learn Python for Data Science

Hashnode - python (python)

Before we look at the best ways to master Python to use in data science, it is important to briefly discuss why you should study Python in the first place. In short, mastering Python is among the essential skills required for a successful career in d...

8: Network optimization and render optimization, what is it'

Hashnode - javascript (Javascript)

Intro Since internet speed varies for everybody and people don't have time to wait for your website to load, it makes the performance very important. All big and growing companies prioritize fast and seamless user experience because they know that pe...

9: Web Push Notifications '

Hashnode - javascript (Javascript)

Overview Web push notification consists of two parts: Push API Notification API Push API enables the developers to take the message to the users even if they are not on their site. Notification API helps to present small chunks of information to a...

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10: New on the web: programmatically open a native date picker (blogPost)

Stefan Judis (Développement)

Not too long ago, we finally got cross-browser-supported date input elements. With Safari joining the party, we're now all green on the browser support front to show native date pickers everywhere. MDN Compat Data (source) Browser support info for type="date" [...]

11: Why you should not use export default in JavaScript'

Hashnode - javascript (Javascript)

Many of us think when we have only one thing to export from a file we should use export default and if there is more than one thing then use named export alone or use it with export default. And it is totally fine to use export default for small proj...

12: Temporal Dead Zone(TDZ) in Javascript

Hashnode - javascript (Javascript)

Temporal dead zone sounds like a sci-fi phrase but yet important to understand. This is the topic which I think every developer should know . Now lets deep dive in it to know what are TDZ '' In the beginning there is just one type of variable that is...

13: 02 The Command Prompt (CMD) and Some Basic Commands | Learn Python like ABC

Hashnode - python (python)

The Command Prompt On a Windows machine, the command prompt (also known as CMD) is the command-line interface. It's basically a text-based interface available to the user. The user types in inputs (commands) in the form of a text and they are execu...

14: Bypass google recaptcha using sound recognition with python selenium

Hashnode - python (python)

Hi, i will present you how to easily bypass google recaptcha using python selenium and a web extension who use speech to text API to bypass the google recaptcha you can download it here for Chrome so we will start our python script by download the...

15: JS var, let, const

Hashnode - javascript (Javascript)


16: This week in Flutter 36

Hashnode - Flutter (Flutter)

A couple of years ago, the Flutter team announced the Flutter Clock Challenge. The goal was to build a clock face UI, using Flutter for the Lenovo Smart Clock. I had already used Flutter in production for some months, and I decided to give it a try. ...

17: How to draw AMPLE

TanglePatterns (Zentangle)

Links to online instructions for drawing CZT® Katie Crommett's Zentangle® pattern: Ample. Continue reading this - An index and graphic guide to the best Zentangle® patterns on the web and how to draw them  

18: rcmd ' an alternative to "active app tabbing" (note)

Stefan Judis (Développement)

Suppose you're spending a good amount of time in front of your computer; you're probably also on the journey of improving how you use it. I'm always looking for ways to achieve my tasks quicker. Headsup: unfortunately, the mentioned app only works on macOS. One power user move is the switching of active apps. You [...]

19: Python Basics: Data Types, Variables

Hashnode - python (python)

Welcome to the first article. In this article, I'll be introducing you to beginner topics in python Hello World Data types Variables and rules Without wasting any more time. Let's get started Hello World First, we're gonna write a simple python pro...

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20: Is JavaScript Compiled or Interpreted language'

Hashnode - javascript (Javascript)

JavaScript is a lightweight, Interpreted (or) Just In Time compiled programming language. First Let's understand the difference between interpreter and compiler. Interpreter vs Compiler Compilers and interpreters help in converting code from high...

21: A Shed Under The Tree Data Structure

Hashnode - python (python)

Once again, I write on another data structure. My other data structure articles have been on linear data structures (Sequentially arranged data structures) from Linked Lists to Stacks and Queues. Trees are nonlinear data structures(nodes can be c...

22: LeetCode - Valid Sudoku

Hashnode - javascript (Javascript)

Problem statement Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digits 1-9 without repeti...

23: Temporal Dead Zone, Scope and Hoisting

Hashnode - javascript (Javascript)

With ES6, two very important ways to declare a variable were introduced, let and const. These were introduced to replace var which was previous standard way of declaring a variable. Although by definition let and var are functionally similar. They ar...

24: How to make HTTP requests using "fetch"

Hashnode - javascript (Javascript)

Hello ' Method 1 - Promise fetch('') .then(res => res.json()) .then(data => { console.log(data) }) Method 2 - Async const response = await fetch('') const data = response.json() console.log(da...

25: The Evolution of JavaScript

Hashnode - javascript (Javascript)

Some background In recent times JavaScript has become one of the most popular programming languages. It is ruling over the web with 97.6% of the market share according to W3Techs. JavaScript is a programming language that is the core technology of th...

26: Form Validation using yup

Hashnode - javascript (Javascript)

Hi everyone if you are new to my blog please checkout previous blogs regarding form handling using react-hook-form Simple Form Handling Dynamic Form Handling In today's blog I will teach you how you can handle form validations using yup and I a...

27: Python Libraries for Data Science

Hashnode - python (python)

Python is one of the most popular programming languages in the world. It is an object-oriented, easy to use and extremely developer-friendly language, which also happens to be the go-to choice for domains such as Data Science, Machine Learning and De...

28: .reduce() Polyfill

Hashnode - javascript (Javascript)

The full source code for the polyfill is available an the end '' What is a polyfill' A polyfill is a piece of code used to provide modern functionality on older browsers that do not natively support it. Polyfill for Array.prototype.reduce() We will ...

29: Centrality Algorithms- A bird"s eye view - Part 1

Hashnode - python (python)

All animals are equal, but some animals are more equal than others. -George Orwell What is centrality' Centrality of a graph is based on the intuition that some vertices or edges are more central than the others. You can think of centrality as some...

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30: How I made a checker's program

Hashnode - python (python)

My 2022 new year's resolution is to crack the computer programming industry within 3 years. So I decided to start somewhere, and what better way is there than to get advice from random strangers on reddit. I made a cash register first, but that was s...

31: Learn Value, Types and Operators in JavaScript

Hashnode - javascript (Javascript)

So in this series of blog I will be blogging chapters of Eloquent JavaScript Let's see what is data and how machine interpret data.We store our data on Electronic devices for example we stored a image on a computer now this image is been stored in a...

32: Making Node CLI(Command Line Interface) quiz app

Hashnode - javascript (Javascript)

Let's Make a Quiz App which you can share with our family and Friends So to make this quiz app we will use, you can also use VS Code or any other code editor. Setting up the enviorment We will use two node modules readline-sync: It can take...

33: Three ways to Validate data in Django Serializers

Hashnode - python (python)

Introduction Validation is a major aspect when building Django projects as it ensures the data inputted are accurate and clear. it also helps to mitigate project defects and removes any outliers or redundancy in our project. In Django Rest Framework,...

34: Temporal Dead Zone

Hashnode - javascript (Javascript)

This phrase seems intimidating, right' Let's make it easy for you and start by breaking the term into pieces. Temporal means something that is temporary, Dead means something that is lifeless, and Zone in programming terms can be interpreted as the m...

35: What is ReactJs and Why it is so popular'

Hashnode - javascript (Javascript)

In this article, we will be discussing what is ReactJs and why it is so popular among developers. Let's get started What is Reactjs' According to official website of reactjs, reactjs is a javascript library that is used for building the user interf...

36: Difference between Transpiler and compiler

Hashnode - javascript (Javascript)

JavaScript cannot be compiled and run because it's an interpreted language that means it is understood by browsers and uses javaScript to render UI. So you mean javaScript is transpilered and other languages are compiled' You guessed it right but the...

37: [JavaScript,]

Hashnode - javascript (Javascript)

JavaScript and the rest - v1.0 Compiler vs Transpiler 1. Compiler By definition, a compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's ...

38: How Asynchronous Code is Executed in JavaScript'

Hashnode - javascript (Javascript)

What is Synchronous Code' Synchronous code is the code which executes line by line. So basically before executing the next line the previous line execution must be finished. What is Asynchronous Code' Asynchronous Code is the code which can execute ...

39: Rest vs Spread operator: two sides of the same coin

Hashnode - javascript (Javascript)

As mentioned in the title, the rest and the spread operator, despite being very similar, behaves very differently depending on the use case. freeCodeCamp explanation of rest vs spread: The main difference between rest and spread is that the rest o...

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40: Une faille dans les commentaires de Google Docs exploitée

Le monde informatique (Internet / Informatique)

Racheté par Check Point en août 2021 pour 280 millions de dollars, Avanan est spécialisée dans la protection des messageries (...)

41: 7 New features In JavaScript You Should Try In 2022'!

Hashnode - javascript (Javascript)

JavaScript has been getting continous updates since 2015, every update more awesome than the other'. Everytime these updates are out, programmers''' from all around the world gets eager to test it out . SOURCE:

42: Temporal '' ' Zone

Hashnode - javascript (Javascript)

The name itself is too scary - Temporal Dead Zone. This condition arose when ES6 introduced two very important JS keywords - let and const. They are block scoped and not global scoped. Above venn diagram explains the usage scope of the 3 variables ...

43: Naming Your Jest Callbacks Improves Navigability

Hashnode - javascript (Javascript)

The RSpec-style DSL is popular among test frameworks. JavaScript test frameworks like Mocha and Jest use this style to express test suites. It's usually written in the following style. describe("User password update process", () => { test("reject...

44: Royaume-Uni : L'intelligence artificielle au service du dépistage précoce de l'insuffisance cardiaque

Le Big Data (dataviz)

Des chercheurs du National Heart and Lung Institute (NHLI) et du Centre for Cardiac Engineering de l’Imperial College ont réalisé … Cet article Royaume-Uni : L’intelligence artificielle au service du dépistage précoce de l’insuffisance cardiaque a été publié sur

45: Almost There! Makers Week 10: Tech Test Week

Hashnode - javascript (Javascript)

I have just come off the back of week 10 of 12 here at Makers, and it was the first week in the whole bootcamp where it was strictly individual learning. Tech tests are a major part of finding a role as a software engineer, and for this week I comple...

46: I am Javascript soldier

Hashnode - javascript (Javascript)

I am Javascript soldier.I know Angular,React, Express, Node.js also I know git and github include with Wordpress theme customization or development. My have over 3 years experience on the web application development & Digital Marketing.I have comp...

47: 3 javaScript:void alternatives

Hashnode - javascript (Javascript)

Need to write a sponsored post' Email posandumapa at In this article, you will learn some javaScript: void alternatives. Before we begin, I will do a brief introduction about javascript: void. What is it' We use javascript: void when there'...

48: Trans'Com...'piling

Hashnode - javascript (Javascript)

These words came across while attending the first class of neog level1 and with further exploration it becomes clear that there's a huge difference between the two despite seeming to be the same. Let's dive right into it. Transpiling So this basica...

49: Create react components at the speed of light

Hashnode - javascript (Javascript)

So you are working in your React app, and it comes the time to create a new component, you already have your ritual down. Go to the components folder, create an index file, create another file for styles and finally one more for testing because you a...

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50: Démocratiser la qualité des soins chirurgicaux grâce à l'intelligence artificielle

Le Big Data (dataviz)

Une équipe canadienne a mis au point un modèle d’intelligence artificielle pour aider les chirurgiens dans leur travail et réduire … Cet article Démocratiser la qualité des soins chirurgicaux grâce à l’intelligence artificielle a été publié sur

51: Let's Explore the Python...

Hashnode - python (python)

So First, let's go through the basic understanding of Programming and Programming Languages in general and without this you don't get the idea of what I am talking about, So let's Begin. What is Programming and Programming Language in general' Prog...

52: Python Django Full Stack Development

Hashnode - python (python)

Nowadays, Python Full Stack Development Training in Bangalore we benefit a lot from software. From video games to the apps we browse on our phones, and even the websites we visit, much of it is made possible by programmers and web developers, some of...

53: Use Ternary Operators - Daily JavaScript Tips 2

Hashnode - javascript (Javascript)

TL;DR The ternary operator is a shortcut for if/else It contains three operands A condition A question mark ' A colon : if/else let fruit; if(fruit === "Apple"){ return "It is a fruit"; }else{ return "It is not a fruit"; } Ternary operator...

54: Understanding "undefined" and "null" in JavaScript

Hashnode - javascript (Javascript)

In JavaScript, the null and undefined datatypes are most confusing, especially for freshers. They behave in a very strange and many general rules do not apply to them. Before deep-diving into their strange behavior, let's first understand what null a...

55: Functions in JavaScript

Hashnode - javascript (Javascript)

In this blog, we will learn about functions like any other programming language JavaScript also has functions that help us to perform the same task again and again without writing the same code again. 1. Function 'Syntax: functionName = Name of t...

56: Where to Learn React.JS in 2022 - A List of Resources for New Developers

Hashnode - javascript (Javascript)

by author Kristofer Selbekk React has never been more popular. According to last year's Stack Overflow survey, over 40 percent of professional developers claim to have worked with React in some respect! In other words, if you want to work with front ...

57: Compiler & Transpiler

Hashnode - javascript (Javascript)

The compiler takes in some code as input and produces a binary executable code aka machine code as output. For example - we use GCC compiler to compile the C/C++ code and it produces the machine code. Transpilers aka source-to-source compilers read t...

58: Show and hide a header based on scroll direction

Hashnode - javascript (Javascript)

This article actually has a funny origin as it was requested by my good friend Fredrik asked me to help with a specific menu. He initially reached out to me, thanking me for writing down the article on showing a menu on scroll. And he wanted to creat...

59: Different background animations on mouseenter and leave (snippet)

Stefan Judis (Développement)

I'm a sucker for beautiful interactions. When you're browsing Codepen, you'll find countless examples of people going wild adding fancy effects to elements: a driving truck a flying paper plane 3D elements showing up on hover And as much as I like that stuff, I'm hesitant to throw JavaScript onto something tiny like a hover link animation. And additionally, the options to transition an element p [...]

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Pour toutes questions, merci de contacter Richard Carlier.


Ceci est un site qui explore certains mécanismes du Web 2.0, histoire de jouer avec tout ça...
Oui, une sorte de mashup 2.0 appliqué à la veille informationnelle... Hum, rien de neuf ?

Expérimental, c'est un site collaboratif à usage d'une seule personne. Ou presque.

Richard Carlier

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