1 - Web Design and Web Development News, Javascript, Angular, React, Vue, Php

522 results for: code

Node.js and npm: introductory tutorial

In this tutorial we will see how to install and use both Node.js and the npm package manager. In addition, we will also create a small sample application. If you have ever used or thought about using a JavaScript-based development tool, you have probably noticed that you need to install…

Category : Javascript   05-11-2021   by Silvia Mazzetta

JavaScript Programming Styles: Best Practices

When programming with JavaScript there are certain conventions that you should apply, especially when working in a team environment. In fact, it is common to have meetings to discuss standards to follow. The reason is that code is much more readable when certain standards are followed. We have already seen…

Category : Javascript   28-10-2021   by Janeth Kent

Secret iPhone codes to unlock hidden features

We love that our devices have hidden features. It's fun to learn something new about the technology we use every day, to discover those little features that aren't advertised by the manufacturer. And unless you spend a lot of time playing around in the Phone app, you probably don't know, until…

Category : Security   22-10-2021   by Silvia Mazzetta

Difference between arrow and normal functions in JavaScript

In this tutorial we are going to see how arrow functions differ from normal JavaScript functions. We will also see when you should use one and when you should use the other.   Normal functions   JavaScript's standard functions, those we call normal or standard functions, have been included in JavaScript since its inception.…

Category : Javascript   30-08-2021   by Janeth Kent

JavaScript Arrow functions: What they are and how to use them

In this article we are going to see what they are and how to use JavaScript Arrow Functions, a new feature introduced with the ES6 standard (ECMAScript 6). What are Arrow Functions Arrow Functions are a new syntax for defining anonymous functions in JavaScript in a more concise way. Being an abbreviated…

Category : Javascript   30-08-2021   by Janeth Kent

How to insert an element into an array with JavaScript

In this brief tutorial you will learn how to insert one or more elements into an array with JavaScript. For this we will use the splice function. The splice function will not create a new array when used, but will modify the existing array. The syntax of the splice function, included in…

Category : Javascript   20-08-2021   by Janeth Kent

What is the difference between primitives types and objects in JavaScript?

In this short tutorial we are going to look at the differences between primitive types and objects in JavaScript. To start with, we're going to look at what primitive types are. Then we will see what objects are and how they differ.   Introduction   The primitive types in JavaScript are as follows:   Boolean: 'boolean String:…

Category : Javascript   16-08-2021   by Silvia Mazzetta

How to get DOM elements with JavaScript

When you access any element of the DOM, it is usual to save it in a variable. This is something that at first might seem very simple, but if you are a beginner programmer it might give you some headaches sometimes. To begin with, let's see how you can get an…

Category : Javascript   11-08-2021   by Silvia Mazzetta

How to reverse an array in JavaScript

In this tutorial we are going to see how you can change the order of the elements of an array so that they are inverted. You could use a loop and reverse the array manually, but as we will see, in JavaScript there are much faster ways to achieve our…

Category : Javascript   11-08-2021   by Janeth Kent

How synchronize the scroll of two divs with JavaScript

In case you have two divs of different sizes you may sometimes want to scroll both at the same time but at different speeds depending on their size. For example, you could have text in one and images in the other and want to scroll both at the same time.…

Category : Javascript   11-08-2021   by Silvia Mazzetta

Nesting: future proofing CSS

Although not currently supported by browsers, there is a proposal for CSS nesting to support a feature that would provide better readability to native CSS, so in the future it is very likely that it will be supported and can be used directly. The idea behind the CSS Nesting concept is…

Category : Css   11-08-2021   by Silvia Mazzetta

What is a Full Stack Developer?

The demand for the Full Stack Developer is growing exponentially in recent years. Disruptive technology companies and startups are increasingly requesting this type of multipurpose profile that knows multiple programming languages and can assume all kinds of functions within the company. Throughout this article we will tell you what a full stack…

Category : News and events   06-08-2021   by Janeth Kent

How to use the codePointAt method in JavaScript

The JavaScript codePointAt method has more or less the same function as the charCodeAt method, used to get the 16-bit Unicode representation of the character at a certain position in a string. However, certain characters present a small problem, as they use two 16-bit units, so the charCodeAt method will only…

Category : Javascript   23-07-2021   by Janeth Kent

How to check if a value is a number in JavaScript

In this short tutorial we are going to look at the various methods that exist to find out if a value is a number in JavaScript.   1. Using the isNaN() function   One of the most commonly used methods is to use the isNaN() function, which is a global function assigned to the…

Category : Javascript   22-07-2021   by Janeth Kent

How to use the charCodeAt method in JavaScript

The charCodeAt method is accepted by strings in JavaScript, returning the 16-bit Unicode code of the character at the position we pass as a parameter to the method. The charCodeAt method can be used with both standard strings defined with single or double quotes and String objects or literal templates. In this…

Category : Javascript   22-07-2021   by Janeth Kent

How to use the charAt method in JavaScript

The charAt method is accepted by strings in JavaScript, returning the position of the character passed as a parameter within the string. If the string contains multiple occurrences of the character passed as a parameter, the charAt method will return only the position of the first occurrence. If the character is…

Category : Javascript   22-07-2021   by Janeth Kent

Strings in JavaScript: What they are and how to use them

In this tutorial we are going to explain what strings are and how they are used in JavaScript. The tutorial is intended for people who are learning to program in JavaScript. You will learn how to create strings, how to display the content of strings, how to concatenate strings and…

Category : Javascript   22-06-2021   by Janeth Kent

Dates in local format with Javascript

In the articles we have about dates in JavaScript we were missing one about how to create dates in local format with JavaScript. That is to say, being able to internationalise (i18n) the date before printing it. Many of you may be saying, "we have already seen this using the…

Category : Javascript   10-06-2021   by Janeth Kent

Formatting hours in Javascript

Continuing with the set of articles that talk about internationalisation elements, like the previous one where we talked about relative dates in JavaScript, we will see in this one how to format hours in JavaScript. The first thing we need to do is to create an 'hour' in JavaScript. That is,…

Category : Javascript   10-06-2021   by Janeth Kent

Request data with prompt in JavaScript

After having published several articles about how to manipulate arrays and dates, today I will publish a post that some of you will find too basic and others will find it useful to get you started in the world of JavaScript programming. So, let them be read to the taste…

Category : Javascript   01-06-2021   by Janeth Kent

Relative dates in JavaScript

One of the interesting things about the internationalisation library represented in the Int object is the handling of relative dates in Javascript. This handling allows us to represent a date according to relative elements, that is to say, to be able to specify which was yesterday, or the day before…

Category : Javascript   25-05-2021   by Janeth Kent

How to access webcam and grab an image using HTML5 and Javascript

We often use webcams to broadcast video in real time via our computer. This broadcast can be viewed, saved and even shared via the Internet. As a rule, we need software to access the webcam and stream video. But you can also stream video on websites without using third-party software. The…

Category : Javascript   20-05-2021   by Janeth Kent

The JavaScript forEach loop

We have already talked about how to handle some of loops  types in Javascript including for, for-in and for-off loops. In the case of today we are going to see how we can make a foreach loop in Javascript. A foreach loop helps us in a simple way to go through the…

Category : Javascript   20-05-2021   by Janeth Kent

What are React Hooks and what problems they solve

Working with React, - and before the release of Hooks in version 16.8 -  there was always the possibility to create components in three different ways based on a number of suspects and needs: 1. Elementary components - These components are the simplest ones, they are characterized by being mere variables that…

Category : Javascript   13-05-2021   by Janeth Kent

Flattening arrays in JavaScript

When we are handling arrays that are arrays or have multiple dimensions it can be very useful to know how to flatten arrays in JavaScript. That is to say, to move all the elements to a single dimension. This simplifies things like traversing the elements or being able to dump…

Category : Javascript   10-05-2021   by Janeth Kent

How to populate an array with random numbers in JavaScript

Some of you might think that what we explained in the article on how to populate an array with numbers, apart from the didactic part, would not have much applicability since we load an array with the same number. It is true that the use cases are fewer, but in…

Category : Javascript   07-05-2021   by Janeth Kent

How to populate an array with numbers in JavaScript

Populate an array with numbers in JavaScript The first step is to initialise the array. So today we are going to see a simple way to do it and see how we can populate an array with numbers in JavaScript. The idea is to populate it with the same number as…

Category : Javascript   07-05-2021   by Janeth Kent

Top Javascript Libraries and Frameworks Part 2

What are JavaScript frameworks?   JavaScript frameworks are application frameworks that allow developers to manipulate code to meet their particular needs. Web application development is like building a house. You have the option of creating everything from scratch with construction materials. But it will take a long time and can incur high costs. But…

Category : Javascript   06-05-2021   by Janeth Kent

How to Send Email from an HTML Contact Form

In today’s article we will write about how to make a working form that upon hitting that submit button will be functional and send the email (to you as a web creator and to the user or customer as well). If you’re a PHP developer, there's a high probability that you…

Category : Programming   10-05-2021   by Tibor Kopca

Top JavaScript libraries and frameworks part 1

JavaScript libraries and frameworks make it easy to develop websites and applications with a wide variety of features and functionality, all with dynamic, flexible and engaging features. According to a 2020 StackOverflow survey, JavaScript remains the most widely used programming language (for the eighth year), with 67.7% of respondents using it. Its…

Category : Javascript   06-05-2021   by Janeth Kent

Looping through a matrix with JavaScript

We were already talking about how to multiply arrays in JavaScript and we realised that we had not explained something as simple as traversing an array with Javascript. So we couldn't let the time pass and we have started working to explain you how to do this task. The first thing…

Category : Javascript   03-05-2021   by Janeth Kent

Use the SRCSET attribute to improve your SEO

There is a new standard HTML attribute that can be used in conjunction with IMG called SRCSET. It is new and important as it allows webmasters to display different images based on the size of the device, and without using javascript or other special code. This means we can serve…

Category : Web design   30-04-2021   by Silvia Mazzetta

How to multiply matrices in JavaScript

It may seem strange to want to know how to multiply matrices in JavaScript. But we will see some examples where it is useful to know how to perform this operation and how useful it is when handling coordinates as matrices, which we will see in a following article. But let's…

Category : Javascript   30-04-2021   by Janeth Kent

JavaScript Formatting Date Tips

Something that seems simple as the treatment of dates can become complex if we don't take into account how to treat them when presenting them to the user. That is why here we are going to see how we can format dates in JavaScript. To do this we are going to…

Category : Javascript   30-04-2021   by Janeth Kent

How to set up your Android phone: learn how to get your new phone up and running

If you've just bought a great new Android phone, you'll want to start using it as soon as possible. You'll see that it's not hard to get the initial set-up and configuration to get it ready to use, and we'll guide you every step of the way. From connecting your Google account,…

Category : Mobile   28-04-2021   by Janeth Kent

How To Use Varnish As A Highly Available Load Balancer On Ubuntu 20.04 With SSL

Load balancing with high availability can be tough to set up. Fortunately, Varnish HTTP Cache server provides a dead simple highly available load balancer that will also work as a caching server. The modern use of SSL/TLS for all traffic has made this a little harder as Vanish has to handle…

Category : Servers   25-04-2021   by Janeth Kent

Top tools for UX design and research

This article is a compilation of the "ux tools" I have tested in recent years. I've separated the tools by categories, although I recommend you to take a look at all of them, you might find some you didn't know. - Conceptualisation and project management tools - UX testing and research tools - Analytics…

Category : Ui/ux design   23-04-2021   by Silvia Mazzetta

How to make a multilingual website without redirect

Today, we're going to talk about how to implement a simple language selector on the basic static website, without the need of any backend or database calls or redirection to another page. We will be using only JavaScript, no PHP or other programming languages. Serving HTML content in multiple languages is…

Category : Javascript   22-04-2021   by Tibor Kopca

6 Best Alternative Privacy Focused Browsers in 2021

In today's article we take a look at free private browsers which are relevant in 2021. We will compare their advantages and disadvantages, specs, etc. Let's get into it. What are alternative browsers? Alternative browsers are mostly trying to increase browser security, by various methods, such as browser hardening, sandboxing, encryption forcing, etc. When…

Category : Software   22-04-2021   by Tibor Kopca

Starting with Bootstrap-Vue step by step

Today we will show you how to use BootstrapVue, describe the installation process and show basic functionality. The project’s based on the world's most popular CSS framework - Bootstrap, for building responsive mobile-first landing page and combines it with Vue.js. Bootstrap-Vue does not yet support Vue 3. So if you want to…

Category : Javascript   13-04-2021   by Tibor Kopca

What is the First Input Delay and why is it important?

First Input Delay (FID) is a Google usability metric that is part of the Core Web Vitals and, from May 2021, will be an SEO ranking factor. FID is the time it takes for the browser to respond to the user's first interaction on a web page while it is loading.…

Category : Seo & sem   25-03-2021   by Janeth Kent

Bootstrap 5 beta2. What offers?

Since the release of the Bootstrap 4 is three years, in this article we will present what is new in the world’s most popular framework for building responsive, mobile-first sites. If you want to know what are the significant changes that come with the next version 5 which is in…

Category : Css   05-04-2021   by Tibor Kopca

htaccess Rules to Help Protect from SQL Injections and XSS

This list of rules by no means is a sure bet to secure your web services, but it will help in preventing script-kiddings from doing some basic browsing around. MySQL injection attempts are one of the most common hacking attacks against PHP websites. If your website is hosted on a dedicated…

Category : Security   01-03-2021   by Janeth Kent

Graphic design and its impact on Web Development

In today's article we will explain the concept of graphic design, its fundamentals and what it brings into web development. Graphic design is applied to everything visual, believe or not, it can aid in selling a product or idea, it's applied company identity as logos, colors, typography of the company…

Category : Web design   05-04-2021   by Tibor Kopca

Creating simple CSS spinner-loader

In today's article we will show you how to animate a basic loader that spins when some predefined action is defined, such as loading an image. That can be used on a website for example when there is a request running and the result is not yet retrieved. What are they? Loading…

Category : Css   05-04-2021   by Tibor Kopca

Deepfakes Detection – An Emerging Technological Challenge

It is highly probable that while browsing the Internet, everyone of us has at some point stumbled upon a deepfake video. Deepfakes usually depict well-known people doing really improbable things – like the queen of England dancing on her table or Ron Swanson from Parks and Recreations starring as every…

Category : Technology   27-01-2021   by Iveta Karailievova

Top Whatsapp alternatives in 2021

From the communication platform WhatsApp leaves more and more users for different reasons. If you're one of them, there are a lot of possibilities on how to replace it with something better. We will show you what are the 5 free alternatives to WhatsApp to have a text or audio-video conversation…

Category : Software   26-01-2021   by Tibor Kopca

Cumulative Layout Shift, what is and How to optimize CLS

Cumulative Layout Shift, one of the new Core Web Vitals metrics,  is the first metric that focuses on user experience beyond performance. Unexpected movement of web page content is a major source of irritation for users on the web. The new cumulative design change metric helps developers understand the impact of…

Category : Seo & sem   14-01-2021   by Luigi Nori

Understanding LCP, CLS, FID. All about Core Web Vitals in Google Search Console

A few months ago we talked about certain Google metrics that were displayed in Search Console. The reason for writing another post on this topic is that Google has changed this again, giving priority to other metrics. Interestingly, we thought in that previous study that the FCP and FID were not…

Category : Seo & sem   14-01-2021   by Luigi Nori

Validating HTML forms using BULMA and vanilla JavaScript

Today we are going to write about contact forms and how to validate them using JavaScript. The contact form seems to be one of the top features of every basic home page. It is a great way to encourage your visitors to make contact with you, by adding a form which…

Category : Javascript   31-12-2020   by Tibor Kopca

The State of PHP 8: new features and changes

PHP 8.0 has been released last November 26: let's discover together the main innovations that the new version introduces in this language. PHP is one of the most popular programming languages in the world. Precisely its wide diffusion, has led many programmers to use it, especially for the development of server-side…

Category : Php   29-12-2020   by Janeth Kent

A FULFILLED PROMISE - Using the FETCH API to make AJAX calls

In this article we talked about what AJAX calls are and how to use them in a traditional way, by using the XMLHttpRequest (XHR) object. In short, thanks to AJAX calls a web page can be partially updated without having to reload the whole content. This leads to better loading…

Category : Javascript   26-12-2020   by Iveta Karailievova

How to use Parallax.js effect on your website

Today, we're going to write about the parallax effect, similar to parallax scrolling, and how to implement it to improve your landing page. In webdev, they say mobile first - well, this engine will react to the movement of a smart device, offsetting layers depending on their depth within a…

Category : Javascript   26-12-2020   by Tibor Kopca

How to use your browser as a file browser, in Chrome or Microsoft Edge

We're going to explain how to use the Chrome browser as a file browser, both on Android and on your computer. This is a hidden feature of Chromium that will allow you to browse through the internal folders of your PC or mobile phone without needing any specific application to…

Category : Technology   26-12-2020   by Janeth Kent

How to get paid in Bitcoin: CoinBase, CoinGate

After explaining how bitcoins work and how to pay using this cryptocurrency, we will see how to get paid in bitcoin. Below you will find explained in detail how to do it. Many people find the concept of BitCoin virtual currency confusing. We could simply explain that BitCoin is a peer-to-peer financial…

Category : Technology   23-12-2020   by Silvia Mazzetta

How to make the website's dark mode persistent with Local Storage, CSS and JS

Recently we wrote about how to do a switchable alternative color mode or theme, a very useful and popular feature to websites. Today’s article is going to be about how to store a user’s settings on your website, specifically, how to save dark mode settings and restore it when a…

Category : Css   22-12-2020   by Tibor Kopca

Python or Swift: Revealing Benefits and Drawbacks of Each Language and Their Differences

Programming languages constantly evolve to improve software performance and simplify developers’ lives. That’s why the programming languages’ ranking is so unstable. Popular languages change every year. While some become outdated and uninterested due to poor features, others get ahead of the ranking because of frequent updates and outstanding performance. There…

Category : Programming   04-03-2021   by

How to pay in Bitcoin: Hype and Coinbase

Once the wallet is created, let's see how to pay in Bitcoin to buy various products and services. If you have opened a Bitcoin wallet with HYPE, you can send payments using this cryptocurrency very easily. All you need to do is go to the Menu section of the HYPE app, press…

Category : Technology   10-12-2020   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 Ismael Mohamed

How to Use Bitcoin: mining, wallets, payments

You have certainly heard of Bitcoin, the virtual currency that periodically makes people talk about itself because of its innovative and particular nature. In this case, you have probably also wondered how it is possible to get and subsequently spend Bitcoins, and if it is something useful, as well as…

Category : Technology   10-12-2020   by Silvia Mazzetta

Security of Internet providers: can we trust it?

This year has been a time of many changes. Now, more people are connected to the Internet through their home routers for teleworking, shopping, or leisure. This is where the security of Internet operators becomes more important. The question is whether the ISP's security is good enough to be the only…

Category : Security   07-12-2020   by Janeth Kent

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

Website Traffic Getting Low? 4 Immediate Action to Take

If you have created a website, I am sure your end objective is to create a strong brand presence, boost engagement, and multiply revenue. An interesting statistic showed that there were 22.31 million internet users at the start of the year, in Australia. This means that there are ample opportunities to…

Category : Web marketing   04-12-2020   by Luigi Nori

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   05-04-2021   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 : Programming   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   03-12-2021   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 : Programming   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

How to clone objects in JavaScript

Primitive and referenced values (objects) behave very differently when we want to make a copy of them. Primitive values Let's suppose a variable name that has a primitive value associated with it (number, string, boolean, undefined and null). If we make a copy of this variable name to another variable name2, any…

Category : Javascript   11-05-2021   by Luigi Nori

We use our own and third-party cookies to improve our services, compile statistical information and analyze your browsing habits. This allows us to personalize the content we offer and to show you advertisements related to your preferences. By clicking "Accept all" you agree to the storage of cookies on your device to improve website navigation, analyse traffic and assist our marketing activities. You can also select "System Cookies Only" to accept only the cookies required for the website to function, or you can select the cookies you wish to activate by clicking on "settings".

Accept All Only sistem cookies Configuration
q=code