In this article, I will explain what CORS and CORS errors are and why you might run into them. I will present possible solutions and explain what preflight requests, CORS headers are, and why they are important in the communication between parties. The article assumes you have some basic knowledge of web development and the HTTP protocol. I tried to write the article in a way that is easy to understand for beginners and fill it with knowledge and try to avoid too many technical nuances that are not tightly connected with the CORS topic. If you spotted any mistakes or have any suggestions, do not hesitate to contact me. In some places, I made a simplification where a service means server and vice versa.

• Future of CSS: Color Scheme
• Future of CSS: Scrollbars
• CSS Container Queries
• Future of CSS: color-mix function 🎨
• Future of CSS: Popover API

Well, I was writing a zine about DNS. And at the end of many of my zines, I say "the best way to learn is to experiment! Do weird DNS experiments and see how it works". But I realized that most people, even if they have a domain, probably aren't comfortable doing weird DNS experiments on a domain that's important to them.

So I figured I'd create a domain that's just for playing around (messwithdns.com) and let anyone set DNS records on it. You're very encouraged to play around and break things.

Wizard zines focuses on fundamentals: things that haven’t changed much in the last 10 years and that probably won’t change much in the next 10 either. That’s why there’s a zine about HTTP and not, say, the Python requests module. HTTP/1.1 was defined in 1997! The basics haven’t changed since 1997 because we need backwards compatibility on the web!

This detailed guide explains how to install a program from source code in Linux and how to remove the software installed from the source code.

Filesystem Hierarchy Standard

En typographie, il existe tout un tas de règles sur la gestion des espaces entre les mots et les caractères. Malheureusement, le Web est extrêmement fruste de ce point de vue là, à ce qu’il paraît. Mais qu’en est-il réellement ? Précédemment, Je vous ai parlé des ligatures qui sont une des réponses (parmi bien d’autres) à la question des espaces entre les lettres. Cette fois-ci, nous allons nous pencher sur la question des espaces entre les mots. Est-ce qu’il se pourrait qu’on puisse utiliser l’espace fine insécable… en vrai ?

Je présente à votre attention la traduction de l'article "Comment analyser l'URL en JavaScript: nom d'hôte, chemin, requête, hachage" de Dmitri Pavlutin.

Uniform Resource Locator ou URL pour faire court est un lien vers une ressource Web (page Web, image, fichier). L'URL définit l'emplacement de la ressource et la manière dont elle est reçue - le protocole (http, ftp, mailto).

An object in JavaScript is something similar to a real-life object. For example, an object can be your computer. It has various properties like color, screen size, and many methods (functionalities) like internet browsing. Computers can vary though, for example, they can have a different operating system, like macOS or Linux. Just like other data types, objects can contain various values. The values are written in a key-value pair saved inside curly braces. These key-value pairs are called properties of objects. Functions which are also properties are called methods.

From Medium.

Ce livre a été conçu pour vous permettre d’apprendre à utiliser efficacement toutes les fonctionnalités de Base, le gestionnaire de bases de données de LibreOffice 7.1. Il vous explique en détail l...

In this article, we will look at some of the hottest CSS tools available to developers today, including frameworks, libraries, and utilities, to help you stay ahead of the curve and take your CSS skills to the next level.

TL;DR:
Neumorphism.io
Animista
Wweb.dev
Spin Kit
Flexplorer
CSS Grid Generator
CSS Layout Generator
Shadows Brumm
Glassmorphism
Cubic-Bezier
Haikei

Extrated with:

  const linksElements = Array.from(document.querySelectorAll("#article-body > h2 + p + p > a")).map(el => `[${el.textContent}](http://${el.href})`).join('\n');
  alert(linksElements);

CSS Hamburger Menus are very important for responsive web design. Take inspiration from our Hamburger Menu codepens examples

Origin: https://medium.com//the-native-way-to-configure-path-aliases-in-frontend-projects-5db70f19a6e0

Projects often evolve into complex, nested directory structures. As a result, import paths may become longer and more confusing, which can negatively affect the code’s appearance and make it more difficult to understand where imported code originates from.

Using path aliases can solve the problem by allowing the definition of imports that are relative to pre-defined directories. This approach not only resolves issues with understanding import paths, but it also simplifies the process of code movement during refactoring.

Bash How-to guides and examples

An A-Z Index of the Apple macOS command line (macOS bash)

The AWK command dates back to the early Unix days. It is part of the POSIX standard and should be available on any Unix-like system. And beyond.

While sometimes discredited because of its age or lack of features compared to a multipurpose language like Perl, AWK remains a tool I like to use in my everyday work. Sometimes for writing relatively complex programs, but also because of the powerful one-liners you can write to solve issues with your data files.

This document is a collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users. This is a practical guide with concise explanations, however the reader is supposed to know what s/he is doing.

Dans cet article je vais rapidement expliquer pourquoi le choix de Træfik plutôt que Nginx que j’utilisais avant ça. Ensuite j’expliquerai les configurations utilisées pour mettre à disposition nos conteneurs. Nous aborderons rapidement quelques points pour aller plus loin et finirons par une conclusion.

Ici nous allons voir comment avoir plusieurs profils Git (email, clé GPG, etc) en fonction du ou des répertoires le tout automatiquement.

TL;DR :
Modifier le fichier .gitconfig

[include]
    path = ~/.config/git/git-personal.conf
[includeIf "gitdir:~/dev/work/"]
    path = ~/.config/git/git-work.conf

La commande ss (pour Socket Statistics) est utilisée sous Linux pour afficher des informations détaillées sur les sockets réseau ainsi que les connexions TCP et UDP.

ss est fourni par le paquet iproute, installé sur toutes les distributions Linux.
C'est la commande à utiliser en lieu et place de netstat (paquet net-tools) qui est maintenant déprécié.

Découvrez la puissance de Nmap pour l'analyse du réseau et l'audit de sécurité. Découvrez commandes et meilleures pratiques pour une analyse des vulnérabilités.