37 results for: explanation
Mastering array sorting in JavaScript: a guide to the sort() function
In this article, I will explain the usage and potential of the sort() function in JavaScript. What does the sort() function do? The sort() function allows you to sort the elements of an array object. It can sort the elements in either the default ascending order or according to a custom sorting…
Category : Javascript 29-05-2023 by Janeth Kent
Is AI sexist? A gender perspective in Robotics and Artificial Intelligence
In her article, Maria Antonia Huertas Sánchez of the UOC - Universitat Oberta de Catalunya, provides an explanation of why we should incorporate a gender vision in robotics and artificial intelligence by combining the concept of epistemology with the definition of artificial intelligence. Epistemology refers to the "theory of the foundations…
Category : News and events 22-05-2023 by Silvia Mazzetta
Install MacOS on PC - the Ultimate Guide (Hackintosh)
There has always been a belief that the Apple MacOS Operating System could only be installed on computers sold directly by Apple. But on the Internet there is a large community dedicated to Hackintosh. And in this guide we are going to show you today all you need to know…
Category : Operating systems 10-12-2020 by
A Java approach: While loop
Hello everyone and welcome back! After having made a short, but full-bodied, introduction about cycles, today we are finally going to see the first implementations that use what we have called preconditional cycle. In Java, as in many other programming languages, this type of cycle is translated with the term while, which…
Category : Java 25-10-2020 by Alessio Mungelli
A Java approach: The Cycles - Introduction
Hello everyone and welcome back! Until now, we have been talking about variables and selection structures, going to consider some of the fundamental aspects of these two concepts. Theoretically, to write any kind of program, the notions seen so far might be sufficient. However, a problem arises. How can we…
Category : Java 23-10-2020 by Alessio Mungelli
The best tricks and features to master your Android Smart TV
We bring you a collection of the best tricks to squeeze Android TV, the Google operating system designed for televisions. You can find it on smart televisions of some brands, but also on devices that you will connect to the TV. With all of them, you can use different types…
Category : Networking 05-11-2020 by Luigi Nori
A Java approach: conditional structures
Hello everyone and welcome back! The previous times we have introduced the concept of variable, trying to define some basic concepts about it. However, some situations suggest that the concept of variable alone is not enough to solve all the possible situations that may arise in front of us. A very…
Category : Java 03-04-2023 by Alessio Mungelli
Hashmap: hashing, collisions and first functions
Today we are going to study some concepts closely related to hashmaps. The concepts we are going to see are hashing and collisions. Hashing The idea of hashing with chaining is to create a sort of array of lists, into which the elements are somehow inserted. We need to map the keys to…
Category : C language 28-06-2020 by Alessio Mungelli
Hashmap: Overflow Lists
In this short series of articles we will go to see how it is possible to create the Hashmap data structure in C. In the implementation we're going to use the doubly concatenated lists as auxiliary data structures. Let's look at a possible implementation. Header file Let's first have a look to what…
Category : C language 18-06-2020 by Alessio Mungelli
Data structures in Java - Linked Lists
With 2020 we are going to look at a new aspect of programming: data structures. It is often the case that everyone uses structures provided by the various programming languages. The objective will be to have a general idea of how they work and their internal mechanisms. Often we will…
Category : Java 22-10-2020 by Alessio Mungelli
A Java approach: variables - use case
Hello all friends and welcome back! After the introduction made on the variables, we try to analyse some critical issues that may arise in quite common situations. Let's start by analysing some practical examples. Example 1: division that returns a non-integer result The first critical case that might arise for those who approach…
Category : Java 22-10-2020 by Alessio Mungelli
How to securely access the Dark Web in 15 steps. First part
The dark web can be a pretty dangerous place if you don't take the right precautions. You can stay relatively safe with a good antivirus and a decent VPN. However, if you want to be completely anonymous and protect your device, you'll need a little more than that. Here there are…
Category : Security 08-03-2024 by Silvia Mazzetta
Linux For Dummies: Permissions
In the previous articles I made a short introduction to the Unix world and in the following article I have dealt with the basic commands for the file system management. Today we are going to talk about permissions. We are going to take Ubuntu as an example, but in the other distros the working mechanism…
Category : Operating systems 14-03-2020 by Alessio Mungelli
import one JS file into another in the plain JS
Until some years ago, it was not possible to import one js file or block of code from one file into another but since 2015, ES6 has introduced useful ES6 modules. With the modulestandard, we can use importand exportkeyword and syntax given to include and export the module in JS…
Category : Javascript 03-12-2021 by Luigi Nori
Linux for Dummies: Ubuntu Terminal
I introduced in the previous article, available here, the basic concepts concerning the Linux world. Today we are going to have a look to some basic operations that we can perform using the terminal in an Ubuntu-like operating system. What is the command line? Shell, terminal and command line are words that commonly stand for a…
Category : Operating systems 27-02-2020 by Alessio Mungelli
10 SEO trends for 2020
In "Ma-No" we have tried to make some predictions with our digital crystal ball and (knowing that we will be wrong about many things) about what will happen in SEO in the next months. These are the ten trends that could mark the evolution of web positioning in 2020. 1. More…
Category : Seo & sem 01-01-2020 by Silvia Mazzetta
Java Design Pattern: Builder Pattern
Today we are going to talk about a creational pattern that in many situations can represent a useful alternative to the construction of the objects using the constructors: the Builder Pattern. The need to introduce alternative mechanisms to those provided by Java for the creation of objects is originated from the fact…
Category : Java 22-12-2019 by Alessio Mungelli
Java Design Pattern: Strategy Pattern
One of the most popular patterns is the Strategy Pattern. It is also one of the easiest patterns. It is a member of the behavioral patterns family, it has the duty of managing algorithms, relations and responsibility among classes. The GoF defines it as follow: It defines a series of encapsulated algorithms…
Category : Java 13-09-2019 by Alessio Mungelli
Java Sorting Algorithm: Selection Sort
Today we are going to analyze a sorting algorithm that is not very efficient but often used in various fields. We are talking abou the Selection Sort. Let's have a look. Intuition The idea behind it is to divide the array to sort into two sub-arrays: the first that contains the sorted data…
Category : Java 31-03-2023 by Alessio Mungelli
Java Sorting Algorithms: Merge Sort
Today we are going to analyze one of the most used sorting algorithms: the Merge Sort. It is part of the Divide and Conquer family, just like the Quick Sort. Merge Sort offers a better performance despite of the Quick Sort since its complexity remains O(n log n) keeping performances. It is also called "algorithm by fusion" The main defect of the Merge…
Category : Java 14-12-2019 by Alessio Mungelli
Java Sorting Algorithms: Quick Sort
Welcome back to this overview about the Java world! Today, we are going to talk about a renowned sorting algorithm: the Quick Sort. The Quick Sort is not very suitable for educational purposes because its implementation may not be trivial, but at the performance level it offers some advantages that are not indifferent, unlike…
Category : Java 14-12-2019 by Alessio Mungelli
Java Design Pattern: Factory Method Pattern
Going on with the speach about design patterns started previously, we are going to talk about another pattern often used: the Factory Method Pattern. The GoF (Gang of Four Design Patterns) defines it in this way: It defines an interface to create objects, but leaves to the subclasses the decision about the…
Category : Java 05-11-2019 by Alessio Mungelli
Java: introduction to Design Patterns and Singleton Pattern
Anyone with even a minimum experience of programming, should have realized that the majority of the problems have common elements. In fact we often find problems with the same pattern but in different contexts. For example, a management software for s supermarket and the one for a great industry will operate…
Category : Java 27-10-2019 by Alessio Mungelli
Java 12, finally less verbose?
We all know Java for its characteristics thanks to which, despite more than 20 years have passed since the first version, it is still one of the most studied and most used languages, despite the growing diffusion of Python. However, one of the biggest flaws is the fact that it is…
Category : Java 10-10-2019 by Alessio Mungelli
Wi-Fi 6
In the second quarter of 2019, Wi-Fi Alliance decided to release the new version of Wi-Fi protocol, innovative already from the name. In fact, if the previous standards had incomprehensible names like IEEE 802.11a, IEEE802.11n and so on, the new protocol is called Wi-Fi 6. This standard introduces some new features.…
Category : Technology 12-09-2019 by Alessio Mungelli
JavaScript challenge for old developers
Let's take a moment to discuss your relationship with JavaScript before delving into technical aspects. If you're anything like me, you've been working with HTML for a long time, occasionally using JavaScript in a basic manner to add interactivity to web pages. Perhaps you ventured into building complex websites by learning…
Category : Javascript 09-06-2023 by
Best Javascript front-end hacking cheatsheets
JavaScript has a extremely high potential to build cutting-edge web applications. But it's really hard to memorize it by heart. The JavaScript cheat sheets therefore act perfectly as a reminder and a comprehensive reference for developers. All popular and special purpose cheat sheets have been discussed above. You now have…
Category : Javascript 06-05-2020 by Janeth Kent
How to Set up a Fully Functional Mail Server on Ubuntu 16.04 with iRedMail
Setting up your own mail server from scratch on Linux is complex and tedious, until you meet iRedMail. This tutorial is going to show you how you can easily and quickly set up a full-fledged mail server on Ubuntu 16.04 with iRedMail under 30 minutes. What is iRedMail? iRedMail is a shell…
Category : Networking 30-03-2023 by Janeth Kent
8 Free PHP Books to Read in Summer 2018
In this article, we've listed 8 free PHP books that can help you to learn new approaches to solving problems and keep your skill up to date. Practical PHP Testing This book is aimed at advanced php developers and is comprised of articles from the author's Practical PHP Testing blog series. It…
Category : Php 20-06-2018 by Janeth Kent
11 Guides for Front-end Developers
Enjoy our Guides series for for Front-end Developers and don’t forget to let us know in the comments of any others that we haven’t yet included. 1. Can I animate…? Can I animate?” is a site inspired by Can I use, but focused specifically on CSS animations and transitions. The aim is to provide…
Category : Web design 12-12-2016 by Janeth Kent
318 USEFUL TWITTER BOOTSTRAP RESOURCES #6
How Tos Tutorials and Instructions on using Bootstrap Articles CUSTOMIZING BOOTSTRAP Tips and recommendations on getting started with LESS and Bootstrap customization. TWITTER BOOTSTRAP TUTORIAL Up and running with Twitter Bootstrap in 20 Minutes ADDING SWIPE SUPPORT TO BOOTSTRAP'S CAROUSEL Justin Lazanowski writes up how he was able to get Bootstrap's carousel working for touch/swipe…
Category : Web design 18-12-2013 by Janeth Kent
Big Data and Hadoop: an explanation
Our world is a potential treasure trove for data scientists and analysts who can comb through massive amounts of data for new insights, research breakthroughs, undetected fraud or other yet-to-be-discovered purposes. But it also presents a problem for traditional relational databases and analytics tools, which were not built to handle…
Category : Databases 24-05-2013 by Janeth Kent
Usability: why you should not use horizontal newsticker in your homepage
Recently, a client asked me my opinion on tickers. My response was, "They're great for the stock market, and bad for Web pages." A quick little Web search on usability expert Jakob Nielsen's Web site, useit.com, found this quote, from his commentary on Sun's Web site redesign, circa 1997: Almost all…
Category : Web design 17-05-2013 by Janeth Kent
Why is facebook blue? The science behind colors in marketing
Why is Facebook blue? According to The New Yorker, the reason is simple. It’s because Mark Zuckerberg is red-green color blind; blue is the color Mark can see the best. Not highly scientific, right? That may not be the case for Facebook, but there are some amazing examples of how colors actually…
Category : Web design 07-05-2013 by Janeth Kent
Google+ Resources to Help You Create a Strategy for Success
A successful SEO campaign includes a Google+ strategy, yet many companies are still not thinking about Google+ as such a crucial aspect for SEO. Your typical social media benefits are obvious—on-site engagement, targeted messages, connections and referrals, etc.—but the benefits in terms of ranking on a SERP are still being…
Category : Social networks 03-05-2013 by Janeth Kent
A Big Deal for Brands: Instagram Adds an Identity Layer
Your Instagram photos are about to get even more personal. Like its parent company, Facebook, Instagram plans to roll out an added layer of identity to its 100-million-strong photo-sharing service with the introduction of a new section and feature called “Photos of You.” It’s two things, primarily: One, it’s pretty much the introduction of…
Category : Web marketing 03-05-2013 by Janeth Kent
Creating a Notepad app with indexedDB
indexedDB, which is new in HTML5, allows developers to persist data within the web browser. As a result your app runs both online and offline with powerful query facilities. indexedDB is different from traditional relational databases in that it is an objectStore instead of a collection of rows and columns. You just…
Category : Databases 14-04-2013 by Janeth Kent
