460 results for: code
Making AJAX requests to a REST API using vanilla JavaScript and XHR
Imagine you just build your first static web page and you would like to add some functionality to make it more attractive and generally more usable. Perhaps you would like to entertain your web page visitor with randomly generated cat facts, jokes, or, (preferably not randomly generated) weather forecasts or…
Category : Javascript 25-11-2020 by Iveta Karailievova
A beginner’s guide to software vulnerabilities
What are software vulnerabilities The number of devices connected to the Internet is growing every day. And among those devices we find not only computers and smartphones, but also an ever-rising number of cameras, smoke detectors, motion sensors, smart door locks, and let’s not forget that even plant pots. Many households…
Category : Security 17-11-2020 by Iveta Karailievova
The easiest way to align items using flexbox
With the release of flexbox in CSS, it has become an essential tool when placing elements next to each other, since, by default, the children of a display: flexare stacked on the left side taking up the minimum space according to their content. If we want to modify the behavior of…
Category : Css 17-11-2020 by Janeth Kent
Dark Mode on website using CSS and JavaScript
In today’s article we are going to learn how to build pretty much standard these days on the web pages and that is the alternative color mode and switching between them. This is very useful when during night you want the user to be able to NOT suffer by staring…
Category : Css 10-11-2020 by Tibor Kopca
The BleedingTooth vulnerability and other Bluetooth security risks
Have you ever heard of BleedingTooth? And we do not mean the really disturbing looking mushroom which goes by this name and is totally real (we double checked) but one of the lately discovered vulnerabilities in Linux systems. It had hit the tech news recently, when Andy Nguyen, a Google security…
Category : Security 10-11-2020 by Iveta Karailievova
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
A Java Approach: Selection Structures - Use Cases
Hello everyone and welcome back! Up to now we have been concerned to make as complete an overview as possible of the fundamental concepts we need to approach the use of conditional structures. We have therefore introduced the concept of conditional structures, outlining the various situations that could arise. We…
Category : Java 20-10-2020 by Alessio Mungelli
JavaScript: Spread and Rest operators
In today’s article we are going to talk about one of the features of the ES6 version(ECMAScript 2015) of JavaScript which is Spread operator as well as Rest operator. These features may be very useful when developing and working with front-end frameworks. We will explain how you can use it in…
Category : Javascript 05-11-2020 by Tibor Kopca
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: boolean variables
The previous time, we talked extensively about Boolean variables, trying to outline the main operations that can be carried out at a practical level. Of all the cases examined, we have not examined the most important and most recurrent one: the case in which the conditions to be examined are more…
Category : Java 18-10-2020 by Alessio Mungelli
How To Add Filter Effects to Images with CSS
To achieve interesting effects on your images, learn about the 'filter' and 'Backdrop-Filter' properties of CSS. CSS filters are a very attractive feature of CSS that allows you to apply certain image effects, typical of photo retouching applications, such as sepia, variations in brightness or contrast (or others) on the fly…
Category : Css 28-10-2020 by Silvia Mazzetta
Why You Should Hire Node.js Developer for Your Backend Development
When developers are building a new website, they mainly focus on both frontend and backend development. The frontend code helps create the interfaces through which the app interacts with the users while the back-end code interacts with the server to deliver data or content that is displayed to the website…
Category : Javascript 27-10-2020 by Luigi Nori
GAN Generated Images
Let’s play a game - can you guess what these portraits have in common? They all depict non-existent people. All these images were created by artificial intelligence. We could say, that AI “dreamed” those people up. How can a machine make up people’s faces? The genius idea came from Ian Goodfellow, who was…
Category : Technology 28-10-2020 by Iveta Karailievova
A Java approach: condtional 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 17-10-2020 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
Javascript: what are callbacks and how to use them.
Today we are going to learn about a concept that is widely used in javascript and that is used quite a lot by today's frameworks, libraries, especially NodeJS. This is the use of Callbacks. What is a Callback? Simplifying, it is to pass a function as a parameter so that this function…
Category : Javascript 23-10-2020 by Silvia Mazzetta
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
How to share your location using Plus codes on Google Maps for Android
Do you know what plus codes or plus codes on Google Maps are and what they are for? We tell you how they work and how to get them from anywhere. You may have been sent one and not know very well what it is for. If you have never used them,…
Category : Technology 22-10-2020 by Janeth Kent
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
Introduction to REGEX - Regular Expression
Today we are going to write about Regular Expressions known as regex or shortened regexp, a very useful concept of using search patterns. Surely you were in a situation when you need to replace some word for another or character for some else. This and more you can handle with Regular…
Category : Programming 23-10-2020 by Tibor Kopca
A Java approach: variables
Hello everyone and welcome back! Today we will begin a journey that will lead us to study, and possibly review, what are the basics of programming. We will start by talking about variaibli. Introduction Anyone who wants to approach the world of programming will soon realise that coding is not exactly like what…
Category : Java 20-09-2020 by Alessio Mungelli
MAME Multiple Arcade Machine Emulator: How to download and configure this arcade emulator for Windows
Despite the fact that new state-of-the-art computer games are coming out every so often, the whole retro theme is very appealing to users who are looking to relive the long hours spent in front of a console, such as the NES or SNES, and even in arcades playing arcade machines.…
Category : Software 14-10-2020 by Luigi Nori
A Dev compile and install Windows XP and Server 2003 from filtered source code
One of the events in the IT field this year was the massive leak of the source code of Windows XP and other large systems such as Windows Server 2003. Although Microsoft has not yet pronounced on the veracity of the code, researchers say it seems real, and those who…
Category : Operating systems 08-10-2020 by Luigi Nori
HTTP Cookies: how they work and how to use them
Today we are going to write about the way to store data in a browser, why websites use cookies and how they work in detail. Continue reading to find out how to implement and manage them - if you're looking for code! Understanding HTTP COOKIES - What are they? Cookies and other types…
Category : Development 27-11-2020 by Tibor Kopca
How to Unlock Secret Games in Chrome, Edge and Firefox
Your web browser is full of secrets. I usually spend a lot of time studying new features that I can unlock through pages like chrome://flags and about:config in the browser, but sometimes it's also fair and necessary to take a break and play the games that popular browsers hide. Yes, your…
Category : Videogames 07-10-2020 by Silvia Mazzetta
SEO in Google News: How to appear in Google News
Google News is a tool, from Google, that spreads current, reliable and truthful content from different websites or portals dedicated exclusively to news. The sites that appear in Google News have a great opportunity to increase traffic to your website and consequently the opportunity to increase your sales through it. If…
Category : Seo & sem 04-10-2020 by Luigi Nori
Google Dorks: How to find interesting data and search like hacker
Go the words Google and Hacking together? Well if you thought that we will learn how to use hack Google, you might be wrong. But we can Use Google search engine to find interesting data accidentally exposed to the Internet. Such a simple search bar has the potential to help you also…
Category : Security 22-10-2020 by Tibor Kopca
Data Scraping and Data Crawling, what are they for?
Right now we are in an era where big data has become very important. At this very moment, data is being collected from millions of individual users and companies. In this tutorial we will briefly explain big data, as well as talk in detail about web crawling and web scraping…
Category : Web marketing 25-09-2020 by Silvia Mazzetta
How to Browse the Internet Anonymously: 6 tips
Most of the actions you take online are not as private as you might imagine. Nowadays, countless people and groups try to follow our online behaviour as closely as possible. Our ISPs, our network administrators, our browsers, search engines, the applications we have installed, social networks, governments, hackers and even the…
Category : Security 16-09-2020 by Silvia Mazzetta
What is a Cryptophone and how it works
The so-called cryptophones, are anti-interception smartphones as they use encryption methods to protect all communication systems. Here are all the details and the truth about these "unassailable" phones. The recent Encrochat affair, recently investigated for illegal activities, has brought to light the so-called cryptophones. They are smartphones - legal in themselves -…
Category : Security 11-09-2020 by Silvia Mazzetta
How to setup an Android TV with androidtv.com/setup or the Google application
Android TVs and players are a good investment if you want to have all the entertainment at your fingertips. However, they require an installation that, although simple, has several ways to run. We show you how to set up your Android TV without complications and in less than five minutes. Android…
Category : Operating systems 26-10-2020 by Janeth Kent
The most popular Array Sorting Algorithms In PHP
There are many ways to sort an array in PHP, the easiest being to use the sort() function built into PHP. This sort function is quick but has it's limitations, especially when sorting things like dates as PHP usually guesses which value is higher than the other and can produce…
Category : Php 25-08-2020 by Luigi Nori
Matrix. An open network for secure and decentralized communication that you can install in your Ubuntu server
Imagine to have an open platform that is as independent, vibrant and evolving as the Web itself, but for communication. As of June 2019, Matrix is out of beta, and the protocol is fully suitable for production usage. But, what is Matrix? Matrix is an open standard for real-time, interoperable and decentralized communication over…
Category : Networking 25-08-2020 by Luigi Nori
The concept of Model-View-Controller (MVC) explained
In software engineering, we use design patterns as reusable solutions to a commonly occurring problem, a pattern is like a template for how to solve a problem. Model-View-Controller (MVC) is a software design pattern that divides the related program or web application into three interconnected elements or components. Each of these…
Category : Development 22-10-2020 by Tibor Kopca
The package managers npm and yarn: main differences
Npm and yarn are package managers that help to manage a project’s dependencies. A dependency is, as it sounds, something that a project depends on, a piece of code that is required to make the project work properly. In the past we had only npm but it had so many issues…
Category : Javascript 19-08-2020 by Luigi Nori
The Javascript asign() method to merge and clone objects
In this article, we will be covering Object.assign()method in javascript in detail with examples. A javascript object is a collection of key-value pairs. Keys are also known as properties of object. Keys are unique but values may be duplicate. Example of a javascript object is let car = { brand: 'Hyundai', fuel: 'Petrol', model: 'i20' } Here, car…
Category : Javascript 11-08-2020 by Luigi Nori
How to create the perfect hacker-proof password
We have not learned and we still use passwords that are extremely easy to hack and vulnerable to cyber attacks. If you don't want your credentials to end up in the hands of criminals or traded on the dark digital shelves of the Deep Web, we bring you a simple…
Category : Security 11-08-2020 by Silvia Mazzetta
All the javascript functions and methods to manipulate arrays
This article will show that the prominent JavaScript array functions are .map(), .filter(), and .reduce(), and will then go through examples of instances in which .every() and .some() would save computing power over the more prominent solutions. You will learn helpful methods in JavaScript Array, an array is one of the…
Category : Javascript 10-08-2020 by Luigi Nori
How to integrate native images lazy loading in your web projects
Support for natively lazy-loading images is now supported on the web! Look at this demo of the feature From the version 76 of Chrome, you can use the loading attribute to lazy-load images without the need to write custom lazy-loading code or use a separate JavaScript library. Let's dive into the details. Browser compatibility is supported by…
Category : Programming 07-08-2020 by Luigi Nori
TypeScript: The evolution of JavaScript
When you're involved in the development of a large project, programming languages like JavaScript don't seem to be the best solution. Their lack of elements such as Language Aids has created the need for code-friendly alternatives. Here we tell you about one of these options. TypeScript, is a project developed and…
Category : Javascript 18-07-2020 by Janeth Kent
How to recover an Instagram hacked account
You can't access your Instagram account. The cybercriminal who probably hacked your profile changed your password. Now what? What to do now? First try to stay calm: unfortunately these things can happen, but there is a solution to everything, and today we will explain how to solve this specific problem. In this…
Category : Social networks 16-07-2020 by Janeth Kent
Smishing: risks, examples and how to avoid it
Do you know what smishing is, what risks it involves and how you can avoid it? The cyber-criminals are betting on the technique known as Smishing when it comes to defrauding users through text messages (SMS). The objective of Smishing is the same as that of other types of scams…
Category : Security 16-07-2020 by Silvia Mazzetta
A collection of interesting networks and technology aiming at re-decentralizing the Internet
The decentralised web, or DWeb, could be a chance to take control of our data back from the big tech firms. So how does it work? Take a look at this collection of projects aimed to build a decentralized internet. Cloud BitDust - is decentralized, secure and anonymous on-line storage, where only…
Category : Networking 27-08-2020 by Janeth Kent
MySQL 8.0 is now fully supported in PHP 7.4
MySQL and PHP is a love story that started long time ago. However the love story with MySQL 8.0 was a bit slower to start… but don’t worry it rules now ! The support of MySQL 8.0’s new default authentication method in PHP took some time and was added in PHP…
Category : Databases 27-10-2020 by Janeth Kent
Awesome JavaScript Games and Js Software to create Games
Best sites js13kGames 2019 - Highlights from the js13kGames 2019 competition. js13kGames 2018 - 13 Games in ≤ 13kB of JavaScript. js13kGames 2017 - Build a game in 13kB or less with js13kGames. Adventure Triangle: Back To Home - You are lost in the cave. Try to get out and back to home. Sometimes it…
Category : Javascript 30-06-2020 by Janeth Kent
Neumorphism (aka neomorphism) : new trend in UI design
This area, which arises from a basic human need, such as the urge to communicate, is constantly changing thanks to the advances of the technological era. Today, we invite you to reflect on the origin of this discipline and its future challenges. Graphic language has always been present throughout our lives…
Category : Ui/ux design 17-06-2020 by Silvia Mazzetta
Dark Web: how to access, risks and contents
You've probably heard of the Dark Web before, but do you really know what the Dark Web is, or what it consists of? Do you know its risks? Which users use the Dark Web? What content is published? Would you know how to access the Dark Web safely? If you are reading…
Category : Security 13-06-2020 by Silvia Mazzetta
How beneficial is React Native for developing a mobile app?
A substantial alternative of cross-platform app development is fully native development. If you follow the approach of native mobile app development such as react native development company in Bangalore, you will be able to create separate ones for both Android as well as iOS. The framework of React Native is…
Category : Javascript 02-06-2020 by Luigi Nori
How to Take Your Small Ecommerce Business to the Next Level
Running an ecommerce business can be both exciting and financially rewarding. However, as you increase your customer base, it might seem difficult to successfully scale your operations. If your site is growing in popularity, or you want to attract more customers to your online venture, read the below top tips on…
Category : Web marketing 01-06-2020 by Janeth Kent
WhatsApp: How to View Deleted Messages
Words are carried away by the wind, as long as they are not written on WhatsApp. Sending it was like getting a tattoo, something you'll always like, or yet it'll be there for years to remind you of a mistake. Then came the option to delete sent messages, a white card…
Category : News and events 25-05-2020 by Janeth Kent
Onion Search Engine: How to browse the Deep Web without Tor
The general recommendation does not change: Anyone interested in entering the Deep Web will get a more complete and secure experience by downloading a copy of the Tor Browser, and modifying various browsing habits. However, the desire to "take a look" is always present, and for those cases there is…
Category : Security 25-05-2020 by Janeth Kent
Introduction to BEM (Block Element Modifier)
Problems with naming CSS classes I think I might not be the only one with this experience: after finally grasping all the important concepts regarding CSS I wanted to start giving what I thought would be beautiful yet simple style to my HTML code. But suddenly I ended up with class…
Category : Css 23-05-2020 by Iveta Karailievova
How to get into the Deep Web: a guide to access TOR, ZeroNet, Freenet and I2P
We would like to present you with a guide that will allow you to enter the main darknets that make up the Dark Web, colloquially known as the Deep Web, although this last term has another meaning. The hidden Internet or Dark Web is a portion of the network in…
Category : Security 07-05-2020 by Janeth Kent
First steps into JavaScript – a practical guide 3
After we learned the basic ofaccessing DOM elementsandhow to modify them,we are ready for the more exciting parts – handling DOM events. This allows us to make our web way more interactive, and finally we can put our JS knowledge into practice. User input such as keyboard actions or mouse clicks…
Category : Javascript 07-05-2020 by Iveta Karailievova
JavaScript: Promises explained with simple real life examples
Handling asynchronous data flows is complex, who hasn't faced codes like this one?: checkWeather('palma de mallorca', (error, weather) => { if (error) throw error; if (weather === 'well') { return checkFlights('palma de mallorca', (err, flights) => { if (err) throw err; buyTicket(flights, (e, ticket) => { if (e) throw e; console.log('ticket nº…
Category : Javascript 06-05-2020 by Janeth Kent
First steps into JavaScript – a practical guide 2
In the previous aticleFirst steps into JavaScript – a practical guidewe covered the basics of the DOM and its relation to us becoming JS literate. Now that we know how to access DOM elements, we can continue with learning how to change them. But before we start, let's make sure we…
Category : Javascript 06-05-2020 by Iveta Karailievova
First steps into JavaScript – a practical guide
For those who are new to web development, surely the amount of new terminology can sometimes be discouraging. But when it comes to learning JS, some of the first new concepts you definitively should wrap your head around is the Document Object Model and what it implies. To keep it simple…
Category : Javascript 05-05-2020 by Iveta Karailievova
Web shells as a security thread for web applications
Over the past two decades, web applications as an alternative to traditional desktop application have been on to rise. As their name suggests, they are installed on web servers and accessed via a web browser. This gives web apps a rather long list of advantages: multi-platform cross-compatibility, no installation required for…
Category : Security 04-05-2020 by Iveta Karailievova
What is Google My Business and how does it help my local business?
Google My Business is increasingly present in the digital marketing strategies of companies, and this Google tool provides us with various options to better position our business in the search engine. Through the creation of a business file we can work on the SEO of our brand. Google My Business mixes the…
Category : Web marketing 02-05-2020 by Luigi Nori
Online Marketing Strategies for your Ecommerce
The impetus and desire we have to launch our online store can be counterproductive if we have not defined a pre-launch strategy. If we are determined to launch our ecommerce without having stopped to think if we are doing it right, there is a good chance that we will fail. That…
Category : Web marketing 02-05-2020 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
How To Effectively Learn Coding For Website Development
Building a website can be pretty expensive, especially if you decide to engage a professional. That’s why sometimes, it’s best to take matters into your own hands and develop your own website. You might start by visiting those quick online sites that let you design your web page and learn…
Category : Programming 21-04-2020 by Luigi Nori
JavaScript Development Services and How It Works
JavaScript is a programming language. This scripting language, however, is used to create features on web pages. As a result, it helps to make web pages alive. All that stuff that you see or do on the internet or websites or web applications is because of JavaScript. It is used to…
Category : Javascript 17-04-2020 by Luigi Nori
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 module standard, we can use import and export keyword and syntax given to include and export the…
Category : Javascript 16-04-2020 by Luigi Nori
Building a Home for Your Home Finders
As a real estate agent, one of the most important aspects of your job is outreach. No one will know about your services if you have no way of letting them know. Billboards and commercials are a great way to reach your clients along with online advertising, but if you…
Category : Web marketing 14-04-2020 by Luigi Nori
The exciting story of JavaScript (in brief)
Javascript is a client-side programming language that has changed the Internet as we know it today. The term "client side" means that it runs on our web browser without the need for a web hosting. Along with html and css it is one of the 3 pillars of web design. It is…
Category : Javascript 13-04-2020 by Silvia Mazzetta
How to check if the GPS works
Have you tried to share your location with some friends but couldn't because the GPS on your smartphone looks dead? Don't jump to conclusions - your phone may not be having hardware problems. In fact, GPS malfunctions are often caused by temporary problems due to poor signal reception or poor…
Category : News and events 10-04-2020 by Silvia Mazzetta
Easy Face and hand tracking browser detection with TensorFlow.js AI and MediaPipe
In March the TensorFlow team has released two new packages: facemesh and handpose for tracking key landmarks on faces and hands respectively. This release has been a collaborative effort between the MediaPipe and TensorFlow.js teams within Google Research. The facemesh package finds facial boundaries and landmarks within an image, and handpose…
Category : Programming 09-04-2020 by Luigi Nori
JavaScript. What's new in ES2020?
As we discussed in our article about the ES2019 features you should try, ECMAScript's proposals will continue to grow and give rise to new implementations. Therefore, you can already access the new ECMAScript features summarized in ES2020. So, in order not to miss the train, it is worth to be informed…
Category : Javascript 05-04-2020 by Silvia Mazzetta
Amazing Javascript Game Source Codes for Free
In this article we will share the code to make simple games with Javascript programming language. The games code can later be your reference material for making other simple games. Before you continue do you already know what is javascript programming ?, if you don't know yet, please read the brief…
Category : Javascript 30-03-2020 by Luigi Nori
10 Steps To become Work with a Low-Code Platform
Low code has become a popular option for businesses that need to develop their software’s in a simple way and at an accelerated pace to get their needed software up and running as soon as possible. Using the low-code platform allows businesses to focus more on innovation and enables them to…
Category : Software 25-03-2020 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
There are 470,000 WhatsApp groups indexed on Google and Facebook says it's not his fault
Want to find new WhatsApp groups? Google it. Reporter Jordan Wildon has discovered hundreds of thousands of private groups through the search engine thanks to public invitation links. Not all were created with the intention that anyone could join them after a simple search. As a Facebook spokesperson explained to Motherboard, administrators…
Category : News and events 22-02-2020 by Janeth Kent
Cross-Origin Resource Sharing (CORS) and examples of XSS and CSRF
Cross-Origin Resource Sharing (CORS) enables web clients to make HTTP requests to servers hosted on different origins. CORS is a unique web technology in that it has both a server-side and a client-side component. The server-side component configures which types of cross-origin requests are allowed, while the client-side component controls…
Category : Javascript 30-01-2020 by Luigi Nori
How the Java Swing is Worthy in Designing the Photo Editing App
When social media is reigning over the world, no wonder photography is one of the crucial factors in today’s field of personal or professional recognition. Tons of applications. Still, the demand is far from ending. Online queries are swarming with searches for better graphics toolkit. The better the framework, the…
Category : Java 27-01-2020 by Janeth Kent
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 22-12-2019 by Alessio Mungelli
Java Sorting Algorithm: Bubble Sort
Programming, the need to order the collections of data or objects that must then be manipulated often arises. Ordering a list can be useful in cases where you have to do very quick searches. We will see later on how to maintain an ordered list is useful to carry out dichotomous…
Category : Java 15-12-2019 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
The best Internet search engines used by hackers
Today, many users wonder what tools hackers use to look for different vulnerabilities on devices that are connected to the Internet. Normally, everyone uses specific tools, but there are search engines that are specifically designed for security researchers. Although many users think that a hacker is a hacker, the reality is…
Category : News and events 08-12-2019 by Silvia Mazzetta
10 Open source tools for security operations (SOC)
As we know, there are many moving parts to building a Security Operations Centre (SOC). From a technological point of view, it is very important to count on open source to identify threats and reduce costs. From a DiD (Defense in Depth) point of view, there are many devices and…
Category : Security 29-11-2019 by Janeth Kent
Layouts with Bootstrap 4: how to create a responsive web
Responsive or adaptable web design is a design methodology in which the appearance of the web page adapts to the resolution of the device with which it is being viewed, so we can have a unique design for computers, tablets or mobiles. To implement a responsive design we can make use…
Category : Web design 23-11-2019 by Silvia Mazzetta
The Truth About Building Your Own Website
If you have your own business, or you are working towards launching one, chances are you’ve thought about building your own website. A strong, professional website is essential for businesses of all kinds, and a critical element to promote your business and build relationships with potential and established customers. However, as…
Category : News and events 24-04-2020 by Janeth Kent
What is Webpack and how does it work
WebPack is basically a packer of modules or module bundler, but thanks to one of its components, the plugins, can be used as tasks runner, ie we can do tasks of all kinds, such as moving directories, clean up, etc... To understand what Webpack is, let's analyze this graph a bit. Webpack…
Category : Programming 23-11-2019 by Silvia Mazzetta
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
DevOps, Agile Operations, and Continuous Delivery
Source: Pixabay Companies and enterprises across the globe have successfully implemented the Agile methodology of developing software and witnessed many benefits regarding smaller development times. Agile also helped to streamline the processes in various multilevel software development teams. The methodology creates feedback loops all while driving the peace that goes with…
Category : Programming 26-09-2019 by Silvia Mazzetta
Angular vs React vs Vue: Which is the Best Choice?
With the growing popularity of Vue, Angular and React as frameworks and libraries for the web and app development, a constant doubt is which of these 3 we should learn, in which we should invest our time, which has a greater future or simply which is the best. First I want…
Category : Javascript 11-06-2020 by Silvia Mazzetta
CRUD Operations Using Vue.js: a basic example
In this tutorial, we show you how to create CRUD application using vue js. here is very basic and simple example of vue.js crud app. using this vuejs crud (create read update delete) you can easily implement with php mysql or also in laravel or codeigniter framework. So it is a…
Category : Javascript 23-05-2020 by Luigi Nori
Why is React so popular as a JavaScript library?
If you want to know why React is so successful as a JavaScript library, we need to talk about its main features to find out what it is currently used for and why it is so effective. When we access an application within a web page that requires continuous requests, if…
Category : Javascript 19-09-2019 by Silvia Mazzetta
10 libraries for machine learning in JavaScript
JavaScript is currently one of the most popular programming languages. Its main application is in web applications, used to give functionality to dynamic web pages. Another field in which it is gaining strength is for the creation of mobile applications. Being the language used in different hybrid development platforms such…
Category : Javascript 16-06-2020 by Luigi Nori
Vue.js 3.0: What are Hooks and how they work
This article introduces an experimental Vue feature called Hooks. Before you start This post is suited for developers of all stages including beginners. Here are a few things you should already have before going through this article. You will need the following in your pc: Node.js version 10.x and above installed. You can verify if…
Category : Javascript 06-09-2019 by Luigi Nori
Vanilla JavaScript equivalent commands to JQuery
JQuery is still a useful and pragmatic library, but chances are increasingly that you’re not dependent on using it in your projects to accomplish basic tasks like selecting elements, styling them, animating them, and fetching data—things that jQuery was great at. With broad browser support of ES6 (over 96% at…
Category : Javascript 29-08-2019 by Luigi Nori
React: 4 types of components to rule them all
If you have already worked with React, you will probably have found terms like "dumb components", "stateless components" or "high order components" which serve to describe different ways of defining and creating components in an application. The aim of this article is to explain the different types of components we can…
Category : Javascript 20-08-2019 by Janeth Kent
The history of software development in two minutes: a century of logic, languages and code
The video shows the hyper-compressed history of software development and programming beginning in 1912 with Bertrand Russell and Alfred North Whitehead and their work on formal logic and type theory. Then came the first electromechanical calculators from IBM and others. Turing laid the foundations for programming in 1930 and by 1940…
Category : Programming 20-08-2019 by Janeth Kent