355 results for: java
The Payment Request API: Revolutionizing Online Payments (Part 2)
Part 2: Advanced Features and Best Practices In the first part of this series, we explored the fundamentals of the Payment Request API and how it simplifies the payment experience. Now, let's delve deeper into advanced features and best practices to further optimize the integration of this powerful API. 1. Customizing Payment…
Category : Javascript 04-06-2023 by Silvia Mazzetta
The Payment Request API: Revolutionizing Online Payments (Part 1)
The Payment Request API has emerged as the new standard for online payments, transforming the way transactions are conducted on the internet. In this two-part series, we will delve into the intricacies of this powerful API and explore how it simplifies the payment experience for both users and merchants. Part 1:…
Category : Javascript 04-06-2023 by Silvia Mazzetta
Let's create a Color Picker from scratch with HTML5 Canvas, Javascript and CSS3
HTML5 Canvas is a technology that allows developers to generate real-time graphics and animations using JavaScript. It provides a blank canvas on which graphical elements, such as lines, shapes, images and text, can be drawn and manipulated with great flexibility and control. Here are some key concepts about HTML5 Canvas: 1. Canvas…
Category : Web design 01-06-2023 by Janeth Kent
How do you stop JavaScript execution for a while: sleep()
A sleep()function is a function that allows you to stop the execution of code for a certain amount of time. Using a function similar to this can be interesting for many reasons: from waiting for some condition to be met before continuing with the code, to simulating during development an…
Category : Javascript 31-05-2023 by Janeth Kent
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
Optimizing the Robots.txt file for Google
The Robots.txt file serves to give information to Googlebot and other robots that crawl the Internet about the pages and files that should be indexed on our website. Although it is not essential, the Robots.txt file is of great help to Google and other crawling robots when indexing our page,…
Category : Programming 22-05-2023 by Janeth Kent
Infinite scrolling with native JavaScript using the Fetch API
I have long wanted to talk about how infinite scroll functionality can be implemented in a list of items that might be on any Web page. Infinite scroll is a technique that allows the user to interact with the mouse by scrolling down to load new dynamic content. In this way, the…
Category : Javascript 15-05-2023 by Janeth Kent
Sorting elements with SortableJS and storing them in localStorage
SortableJS is a JavaScript extension that you will be able to use in your developments to offer your users the possibility to drag and drop elements in order to change their position. To learn what SortableJS is and how to get started, you can read the following tutorial. In this article you…
Category : Javascript 15-05-2023 by Janeth Kent
What is a JWT token and how does it work?
JWT tokens are a standard used to create application access tokens, enabling user authentication in web applications. Specifically, it follows the RFC 7519 standard. What is a JWT token A JWT token is a token that gives the user access to an application by certifying their identity. This token is returned to…
Category : Programming 10-05-2023 by Janeth Kent
Template Literals in JavaScript
Template literals, also known as template literals, appeared in JavaScript in its ES6 version, providing a new method of declaring strings using inverted quotes, offering several new and improved possibilities. About template literals Template literals were introduced in the ES6 version of JavaScript, allowing strings to be declared using inverted-quote syntax: const chain…
Category : Javascript 28-04-2023 by Janeth Kent
What is Gzip compression and what is it used for?
GZIP compression allows you to compress the resources of a web page before they are served to the users' browsers so that the web page loads faster and thus improves your WPO. This type of compression has become very popular in recent times among WPO consultants thanks to tools such as…
Category : Programming 22-12-2022 by Janeth Kent
How to use the endsWith method in JavaScript
In this short tutorial, we are going to see what the endsWith method, introduced in JavaScript ES6, is and how it is used with strings in JavaScript. The endsWith method is used to find out if a string ends with the character or substring you pass as a parameter to the…
Category : Javascript 21-12-2022 by Janeth Kent
What are javascript symbols and how can they help you?
Symbols are a new primitive value introduced by ES6. Their purpose is to provide us unique identifiers. In this article, we tell you how they work, in which way they are used with JavaScript and how they can help us. How to create symbols To create a new symbol we will have…
Category : Javascript 20-12-2022 by Janeth Kent
Callbacks in JavaScript
Callback functions are the same old JavaScript functions. They have no special syntax, as they are simply functions that are passed as an argument to another function. The function that receives the callback as an argument is called a higher-order function. Any function can be used as a callback, since it is…
Category : Javascript 22-05-2023 by Janeth Kent
How to create PDF with JavaScript and jsPDF
Creating dynamic PDF files directly in the browser is possible thanks to the jsPDF JavaScript library. In the last part of this article we have prepared a practical tutorial where I show you how to implement the library. Below you can see the completed exercise. The client side is gaining ground over…
Category : Javascript 04-12-2022 by Janeth Kent
How to make your own custom cursor for your website
When I started browsing different and original websites to learn from them, one of the first things that caught my attention was that some of them had their own cursors, so I investigated how to incorporate it into my website. Today I bring you a simple version of a custom cursor…
Category : Web design 08-06-2022 by Nadal Vicens
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
How to connect to MySQL with Node.js
Let's see how you can connect to a MySQL database using Node.js, the popular JavaScript runtime environment. Before we start, it is important to note that you must have Node.js installed on your system. Likewise, you must create a MySQL database. Create a MySQL database If you haven't already done so, you can…
Category : Javascript 04-11-2021 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
How to set up your own free web server with XAMPP
Nowadays anyone can create their own website easily and free of charge. Whether through a CMS (such as WordPress) or by hand with HTML, CSS and JavaScript, in a few minutes we can have a more or less functional website up and running. However, in order to test that everything…
Category : Servers 25-10-2021 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 26-05-2023 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 18-05-2023 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 26-05-2023 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 18-05-2023 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 26-05-2023 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
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 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 31-05-2023 by
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
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
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
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
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
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
What is Django and what is it used for
When we talk about Django, we refer to that framework that is used for any totally free and open source web application which is written in Python. Basically, it's a group of elements that will help you create web pages much more easily and quickly. At the moment you are going…
Category : Programming 26-12-2020 by Janeth Kent
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
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
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
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
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
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
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
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
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
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
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
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
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
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
How to securely access the Dark Web in 15 steps. Second part
Let's continue with the 2nd part of our article in which we try to give you some advice on how to safely and securely explore the dark web. Let's restart from number 6. 6. Changes the security level in the Tor browser It is also possible to increase the security level of the…
Category : Security 19-09-2020 by Janeth Kent
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 04-05-2021 by Silvia Mazzetta
How to comply with Google's quality guidelines in 2020
Google provides a set of guidelines on what your website's content should look like in order to appear in search results. There are several categories within the Google guidelines: Webmaster Guidelines. General guidelines. Content-specific guidelines. Quality guidelines. In this article we will focus on the Quality guidelines. Quality guidelines, describe techniques whose use is prohibited and which,…
Category : Seo & sem 09-09-2020 by Silvia Mazzetta
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
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 configure Tor to browse the deep web safely
Today we explain how to set up Tor to browse safely, and we'll share some links to safe sites on the deep web to get you started. Many already know that not everything on the Internet appears in Google, Yahoo, Bing or other search engines, and that accessing much of this…
Category : Security 12-08-2020 by Silvia Mazzetta
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
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…
Category : Programming 03-04-2023 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
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
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
Is JavaScript good for machine learning?
One of the things you always hear when you are talking to someone related to the M.L. world is that, one must learn Python because the vast majority of the major libraries are in that technology. You're probably right, but I chose JavaScript as the metal of my sword and…
Category : Javascript 16-06-2020 by Silvia Mazzetta
What is Machine Learning ?
Artificial Intelligence or AI is a trend in technology and has been the main topic of many philosophical debates as to where this field will lead us as humanity. This time I'm going to focus on a subfield of Artificial Intelligence that is Machine Learning, which I am currently very passionate…
Category : Technology 16-06-2020 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
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
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 26-10-2021 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 26-10-2021 by Iveta Karailievova