Tree Shaking and Code Splitting in JavaScript

<p>Thinking back to my first real frontend job still stings.</p> <p>I wasn't a total coding newbie—I had a CS degree and plenty of full-stack school projects. But professional

<h1> JavaScript Modules: The 2026 Guide (ESM vs CommonJS) </h1> <p><em>Stop confusing require and import. Here's the complete picture.</em></p> <h2> Two Module Systems </h2> <div

<h2> A 14-Second Build Dropped to 3 Seconds, Then Everything Else Went Wrong </h2> <p>Six months ago, our API was a standard Express + TypeScript setup running on Node.js 22. It

<p>Every few years, the frontend community rallies around a faster build tool.<br /> Grunt gave way to Webpack. Webpack gave way to Parcel, then Rollup, then Vite. Each one

<h2> The Chaos of Unorganized Code </h2> <p>Imagine you're building a full-stack app - your <code>main.js</code> file have 1,000+ lines. Functions for user authentication, data