Category: JavaScript

  • Decoding Ivy: A Deep Dive into Angular’s Compiler and Runtime

    Decoding Ivy: A Deep Dive into Angular’s Compiler and Runtime

    You run ng build –prod on your car rental application, and you notice the final bundle size is smaller than it used to be. When you fire up the development server with ng serve, changes to a component appear in your browser almost instantly. You’ve heard the word Ivy thrown around in conference talks and blog posts as the reason for these improvements. But what is Ivy, really? It’s not just a name or a version number; it’s a fundamental re-architecture of Angular’s core, a ground-up rewrite of the compiler and runtime. If you’ve ever wanted to look under the… Go to Post

  • Deep Dive into the Heart of Node.js

    Deep Dive into the Heart of Node.js

    Every experienced Node.js developer has been there. An application runs smoothly in development, but under the strain of production traffic, a mysterious performance bottleneck appears. The usual toolkit of console.log statements and basic profilers points to no obvious culprit in the application logic. The code seems correct, yet the application slows to a crawl. In these moments, it becomes clear that the problem isn’t just what our code does, but how Node.js is executing it. This is where a surface-level understanding is no longer enough. To solve the hard problems and build truly high-performance applications, we need to look under… Go to Post

  • The Scheduler, The Fiber, and The Reconciler: A Deep Dive into React’s Core

    The Scheduler, The Fiber, and The Reconciler: A Deep Dive into React’s Core

    Most React developers are familiar with the concept of the Virtual DOM. We’re taught that when we call setState, React creates a new virtual tree, “diffs” it with the old one, and efficiently updates the actual browser DOM. While true, this high-level explanation barely scratches the surface of the sophisticated engine running under the hood. It doesn’t answer the critical questions: How does React handle multiple, competing updates? What allows it to render fluid animations while also fetching data or responding to user input without freezing the page? The simple diffing algorithm is only the beginning of the story. The… Go to Post

  • A Programmer’s Guide to Types and Data Structures in JavaScript

    A Programmer’s Guide to Types and Data Structures in JavaScript

    Data structures are fundamental tools in programming, enabling us to efficiently store, manipulate, and access data. In JavaScript, a language known for its flexibility, mastering these structures can significantly enhance your ability to solve problems and write optimal code. In this blog post, we’ll explore commonly used data structures in JavaScript. By understanding both the “how” and the “why” of these data structures, you’ll be better equipped to tackle complex problems. As always, we start simple. Primitive Types JavaScript’s primitive types form the foundation of all data manipulation. We can consider that there are 3 main primitive data types: strings,… Go to Post