Posts

The URL Object: Explained and How to Use It

Discover what a URL object is and learn how to effectively utilize it. The URL object encompasses two static methods, URL.createObjectURL() and URL.revokeObjectURL(), which serve the purpose of manipulating URLs using blobs. To generate a URL for a blob, the URL.createObjectURL() function is employed. The process involves passing a blob as a parameter, resulting in the creation of a URL, as demonstrated below: const myURL = URL.createObjectURL(aBlob); Once the blob URL has been obtained, it can be removed from memory using the URL....

The V8 JavaScript Engine: Powering Google Chrome and Beyond

Tags: V8 JavaScript engine, Google Chrome, runtime environment, Node.js, performance, compilation The V8 JavaScript engine is the powerhouse behind Google Chrome, responsible for executing JavaScript code while browsing. It provides a robust runtime environment for JavaScript execution, while the browser itself handles the DOM and other Web Platform APIs. What sets V8 apart is its browser independence. This key feature has led to the emergence of Node.js, with V8 selected as its engine in 2009....

The Valley of Sorrow in Learning Programming: Overcoming the Challenges of Online Courses

As someone who has explored numerous online learning programs in my journey to become a developer, I have noticed a common pattern that often repeats itself. The initial weeks of a course are filled with enthusiasm and high participation, but as time goes on, the number of individuals actively engaged in the program begins to dwindle. This phenomenon, known as the “valley of sorrow,” presents a significant hurdle for those aspiring to learn programming or any other skill....

The Value of Ideas and Execution in Business

The Value of Ideas and Execution in Business In the world of business, ideas alone hold little value. It is the combination of a well-executed idea that truly matters. So, don’t be afraid to discuss your ideas openly because the truth is, your ideas are worth nothing on their own. What really matters is how you bring those ideas to life. It’s important to understand that no one can steal your idea completely....

The valueOf() Method in JavaScript

In JavaScript, the valueOf() method is used to retrieve the primitive value of a Number object. This method returns the underlying number value. To demonstrate the usage of the valueOf() method, let’s consider an example: const age = new Number(36); typeof age; // object age.valueOf(); // 36 In the given example, we create a Number object called age with a value of 36. When we use the typeof operator on age, it returns “object” because age is an instance of the Number object....

The Virtual DOM: Optimizing Browser Interactions with React

The Virtual DOM is a technique utilized by React to optimize interactions with the browser. Unlike many existing frameworks that directly manipulate the DOM on every change, React takes a different approach. But before we delve into that, let’s first understand what the DOM is. The Document Object Model (DOM) is a tree representation of a webpage, starting from the <html> tag and extending down to its child nodes. It resides in the browser’s memory and is directly linked to what is visible on the page....

The Vue Router: A Guide to Routing in Vue.js Applications

Introduction In a JavaScript web application, a router is responsible for synchronizing the view displayed with the content in the browser’s address bar. It manages URL changes when a user interacts with the page and ensures the correct view is shown for a specific URL. Traditionally, the web is built around URLs, where hitting a specific URL displays a corresponding page. However, with the advent of applications running within the browser, many applications broke this URL-page interaction, requiring manual URL updates using the browser’s History API....

The Vue.js Cheat Sheet: A Comprehensive Guide for Developers

In this article, we will provide you with a comprehensive cheat sheet of common commands and instructions that you can use while coding in Vue.js. This cheat sheet covers a wide range of topics, including directives, working with form elements, modifying events, mouse event modifiers, keyboard event modifiers, lifecycle hooks, built-in components, global configuration of the Vue object, methods of the Vue object, and options passed to a Vue object....

The Vue.js DevTools: A Guide for Developers

The Vue.js DevTools are an essential tool for Vue.js developers. This powerful panel integrates into the Browser Developer Tools, allowing you to inspect and interact with your Vue.js application. In this guide, we will walk you through the installation process for Chrome, Firefox, and the standalone application, as well as how to use the Developer Tools effectively. Table of Contents Install on Chrome Install on Firefox Install the standalone app How to use the Developer Tools Filter components Select component in the page Format components names Filter inspected data Inspect DOM Open in editor When you start working with Vue....

The Web Storage API: local storage and session storage

The Web Storage API is a powerful tool for storing data in the browser. It consists of two storage mechanisms that are crucial for web development: Session Storage and Local Storage. These storage options are part of the wider range of storage capabilities available on the Web Platform, which includes Cookies, IndexedDB, and the Cache API. Session Storage and Local Storage provide a private area for storing data, ensuring that it cannot be accessed by other websites....