JavaScript

Web Workers provide a way to run JavaScript code in the background, allowing for parallel execution inside the browser. This is useful in scenarios where synchronous JavaScript execution may cause performance issues. In this article, we will explore the use of Web Workers, how to communicate with them, their lifecycle, how to load libraries, and the available APIs. Introduction JavaScript is single-threaded, meaning that only one task can be executed at a time....

Have you heard of the term JAMstack? In recent years, it has become a popular way to describe a set of technologies used together to achieve web development goals. Just like LAMP and MEAN, JAMstack represents a combination of technologies. But what does JAMstack really mean? JAM is an acronym for JavaScript, API, and Markup. It refers to a trend in web application and website development that revolves around several key characteristics:...

When should you use let over var? And why? Let’s find out! In modern JavaScript, there are three ways to declare a variable and assign it a value: const, let, and var. When it comes to working with variables in JavaScript, my default choice is always const. It guarantees that the value cannot be reassigned, making it a safer option. However, when there is a need to redeclare a variable later on, I always use let....

When deciding on the best technology for your next project, there are countless alternatives to Node.js to consider. However, Node.js stands out as a compelling choice for a number of reasons. In this blog post, we will explore the benefits of using Node.js and why it may be the right solution for you. Node.js - Powered by JavaScript JavaScript is undoubtedly one of the most popular programming languages globally. Its ability to run within a web browser gives it a distinct advantage over other languages....

JavaScript is an excellent programming language for beginners due to several reasons. Reason 1: JavaScript is the primary language used for building websites. As a beginner, learning JavaScript will provide you with the necessary skills to create functional and visually-appealing websites. Given that every company requires a website or an e-commerce platform, mastering JavaScript will open up numerous opportunities for you in the future. Reason 2: JavaScript is one of the most popular programming languages worldwide....

Learn the basics of handling keyboard events in JavaScript to enhance your web applications. There are three main types of keyboard events: keydown - Triggered when a key is initially pressed down. keyup - Fired when a key is released after being pressed down. keypress - Deprecated event, rarely used in modern development. When working with keyboard events, it is common to listen for them on the document object. Here’s an example:...

Learn two modern techniques for working with arrays and objects in JavaScript. You can expand an array, object, or string using the spread operator .... Let’s start with an example for arrays: const a = [1, 2, 3]; To create a new array, you can use: const b = [...a, 4, 5, 6]; You can also create a copy of an array using: const c = [...a]; This also works for objects....

In this article, we will explore how to effectively work with Unicode in JavaScript. We will cover topics such as Unicode encoding of source files, how JavaScript uses Unicode internally, using Unicode characters in a string, normalization, emojis, getting the proper length of a string, ES6 Unicode code point escapes, and encoding ASCII characters. Unicode Encoding of Source Files When working with JavaScript, it’s important to specify the Unicode encoding of your source files, especially if you plan to use non-ASCII characters....

Learn how to perform common operations in JavaScript using map(), filter(), reduce(), and find() instead of using loops. Loops are commonly used in programming languages to perform operations on arrays. You can iterate over the elements of an array and perform calculations or operations on them. In this blog post, we’ll explore alternative approaches to using loops by leveraging functional programming concepts. We’ll specifically look at four powerful array functions: map(), filter(), reduce(), and find()....