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Traditionally, design patterns have been classified into three main categories: Creational, Structural, and Behavioral. There are other categories, like architectural or concurrency patterns, but they’re beyond the scope of this article. There are also Python-specific design patterns that are created specifically around the problems that the structure of the language itself provides or that deal with problems in special ways that are only allowed because of the structure of the language. ...

CSS Layout is all about boxes. We know that some boxes are blocks, and others are inline, and we can change the display type of elements by changing the value of the display property. That property holds the key to much more than this, however. It is the foundation on which all layout is built; the core of the inbuilt CSS layout system. Learning Grid Layout, or Flexbox, without understanding Display, leaves you with a wobbly foundation and more questions than answers. The real question isn’t “Should I use Grid or Flexbox?” but instead, “How do I want these boxes to behave?” Understanding the interaction between layout methods will enable you to easily create fallbacks for older browsers, and knowing how the various formatting contexts behave unlocks margin collapsing and the behavior of items inside grid or flex layout. By the end of the hour, you’ll understand how the display property underpins the layout system we have today, the things coming in the future, and be able to make more informed decisions when deciding how to build any part of your design, big or small. ...

GRUB (Grand Unified Bootloader) es un gestor de arranque disponible del proyecto GNU. Un gestor de arranque es muy importante ya que es imposible iniciar un sistema operativo sin él. Es el primer programa que se inicia cuando se enciende el ordenador. El cargador de arranque transfiere el control al núcleo del sistema operativo. GRUB es el gestor de arranque predeterminado para casi todas las distribuciones de GNU/Linux. Esto se debe a que es mejor que muchas de las versiones anteriores de los cargadores de arranque. Pero ¿Hay vida más allá de GRUB? ...

This is mainstream opinion. Linux is better than anything else and money is poured in constantly, more than in other platforms. And aside this is not true, this is not based in facts but on feelings. Most GNU/Linux distributions are very average on many aspects. The fact they run on many servers on this planet and many developers work on them, doesn’t make them better than ‘X’. They are popular but that’s it. ...

Since the 1970’s, Vi and its successor Vim have been included by default on many operating systems, including almost all GNU/Linux distributions. Vim is free and open-source and is one of the most popular code editors. It can be downloaded on Vim official site. » Jean-Baptiste Jung | catswhocode.com

The vast majority of PC users today have no memory of what PC keyboards looked like before the standard 101/102-key layout arrived, even though various OEMs do their best to mangle the standard layout in order to minimize usability, especially on laptops. OEM-specific modifications aside, the basic layout of the main block of alphanumeric keys has not changed in over 30 years, since 1986. However, up until that point the PC keyboard layout and the keyboard hardware changed quite a bit, and looking at the 1981-1986 IBM Technical References is key to understanding a) why the standard keyboard scan codes are so complex, and b) why there are so many seemingly odd vendor-specific modifications of the standard layout. ...

A collection of awesome Algorithms books which should find a place in every programmer’s book self. Includes language specific books in Java, Python, and JavaScript for easy learning. Algorithms are language agnostic and any programmer worth their salt should be able to convert them to code in their programming language of choice. » Hacker Noon | hackernoon.com

What is the framework Regardless of the sphere you work in, one of your most important tasks is to create a fast, good-looking website. Today, almost every business needs a website, which acts as a sort of business card for a company or online service. It helps you engage with customers, promote your business, increase sales and so on. » Hacker Noon | hackernoon.com

The Object-Oriented Design Principles are the core of OOP programming, but I have seen most of the Java programmers chasing design patterns like Singleton pattern, Decorator pattern, or Observer pattern, and not putting enough attention on learning Object-oriented analysis and design. It’s important to learn the basics of Object-oriented programming like Abstraction, Encapsulation, Polymorphism and Inheritance. But, at the same time, it’s equally important to know object-oriented design principles. » Hacker Noon | hackernoon.com

In August 2018, Opensource.com posted a poll with seven options asking readers: What was the most important moment in the history of Linux? I thought I would expand on the list and present 10 moments that I think have played an important part in shaping the history of Linux. » Opensource.com | opensource.com