550 results for: code
Examine the 10 key PHP functions I use frequently
PHP never ceases to surprise me with its built-in capabilities. These are a few of the functions I find most fascinating. 1. Levenshtein This function uses the Levenshtein algorithm to calculate the disparity or "distance" between two text strings. Named after its creator, Vladimir Levenshtein, it measures how identical two words or…
Category : Php 17-10-2023 by Silvia Mazzetta
The best and most amazing Alexa Hacks you should know about
The best and most amazing Alexa Hacks you should know about Alexa, Amazon's talking Artificial Intelligence contained in the Echo, can entertain you and your family if you know the right words. Alexa is a versatile assistant, but Alexa's fun tricks can be the best form of entertainment at home. From playing…
Category : Operating systems 30-06-2023 by Janeth Kent
How to trim a video without downloading programs
You recently experienced one of the most epic concerts in recent years and now you're in the process of showing the videos you recorded to friends and family who, unfortunately, were unable to attend. However, in reviewing the recorded video, you've noticed that some scenes aren't quite right, so you're…
Category : Software 27-06-2023 by Janeth Kent
How to upload files to the server using JavaScript
In this tutorial we are going to see how you can upload files to a server using Node.js using JavaScript, which is very common. For example, you might want to upload an avatar, a thumbnail, a PDF file or any other image or file in various formats. We are going to…
Category : Javascript 14-06-2023 by Janeth Kent
How to combine multiple objects in JavaScript
In JavaScript you can merge multiple objects in a variety of ways. The most commonly used methods are the spread operator ... and the Object.assign() function. How to copy objects with the spread operator To begin with, we will use the spread operator for this task, as it is the most efficient…
Category : Javascript 12-06-2023 by Janeth Kent
How to record TV programs using VLC
VLC is much more than a simple media player. Behind its simple appearance, there are a lot of features, such as the ability to convert videos to audio format, repair corrupt or damaged MP4 videos, or even stream content from other devices over the local Wi-Fi network. Another useful but little-known…
Category : Software 08-06-2023 by Janeth Kent
How to Track Flight Status in real-time using the Flight Tracker API
The Flight Tracker API provides developers with the ability to access real-time flight status, which is extremely useful for integrating historical tracking or live queries of air traffic into your website. With this API, you can easily track the status of a flight and access airport schedules. There are several Flight Tracker…
Category : Php 12-06-2023 by Janeth Kent
The Payment Request API: Revolutionizing Online Payments (Part 2)
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. We start by making a modification of supportedMethods by…
Category : Javascript 08-06-2023 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 12-06-2023 by Silvia Mazzetta
Android Hidden Codes: unveiling custom dialer codes and their functionality
In the world of Android smartphones, there exist numerous hidden codes that can unlock a treasure trove of functionalities and features. These codes, known as custom dialer codes, provide access to various settings, diagnostics, and information that are not readily available through regular menus. In this article, we will explore…
Category : Mobile 02-06-2023 by Janeth Kent
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 21-03-2024 by Janeth Kent
How to generate an SSH key and add it to GitHub
In this short tutorial we are going to see how you can generate a new SSH key and add it to GitHub, so you can access your private repositories and manage them locally or from your server, running the commands git pull, git push and any other that has restrictions. This…
Category : Programming 08-03-2024 by Janeth Kent
Hidden Gmail codes to find a lost e-mail
If you have a lot of emails in Gmail, there are a few codes that will help you find what you need faster and more accurately than if you do it by hand. We'll tell you about them right now. To say that Gmail is one of the most important email…
Category : Technology 16-05-2023 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 08-03-2024 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 fix excessive MySQL CPU usage
What happens if we realise that a series of databases that we thought were optimised through the use of indexes, have begun to consume CPU usage time of a server to unsuspected limits? Even users have stopped being able to access the server when it had a certain number of visits…
Category : Development 21-12-2022 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
Loading images by resolution with HTML5
Normally the way to load images in HTML is through the img element to which we pass as a parameter the URL of the image to load. But since HTML5 we have the picture element that helps us to make it more efficient and load images by resolution with HTML5. That…
Category : Web design 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
Open source web design tools alternatives
There are many prototyping tools, user interface design tools or vector graphics applications. But most of them are paid or closed source. So here I will show you several open source options for you to try and use the one you like the most. Penpot Penpot is the first open source design…
Category : Web design 03-06-2022 by Nadal Vicens
How to create a .onion domain for your website
The dark web, a hidden network accessed through the Tor browser, offers enhanced privacy and anonymity for websites. To establish a presence on the dark web, you can create a .onion domain for your website. A .onion domain is an address that can only be accessed through the Tor network.…
Category : Networking 06-06-2023 by Janeth Kent
PHP - The Singleton Pattern
The Singleton Pattern is one of the GoF (Gang of Four) Patterns. This particular pattern provides a method for limiting the number of instances of an object to just one. It's an easy pattern to grasp once you get past the strange syntax used. Consider the following class: PHP Code: class Database { public…
Category : Php 04-02-2022 by Janeth Kent
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 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
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 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
The ultimate cybersecurity checklist for programmers
In today's digital age, cybersecurity has become an essential concern for programmers. With cyber threats on the rise, it is crucial for programmers to adopt robust security practices to protect their code, data, and systems from malicious attacks. To assist programmers in this endeavor, we have compiled the ultimate cybersecurity…
Category : Security 02-06-2023 by Silvia Mazzetta
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 21-03-2024 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 31-05-2023 by
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
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
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
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
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
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 Laura Celis Ballesta
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
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
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
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
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 29-05-2023 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
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
