#code-splitting

2 posts

Performance

React.lazy() Route Code Splitting Explained

React.lazy() makes a 5MB app's first load equal to just the landing route cost. Here is how route code splitting works and where it silently fails.

#performance#react#bundling#javascript#code-splitting

Ashish Apr 15, 2026 11 min read
Performance

Tree Shaking and Code Splitting in JavaScript

Your 2MB bundle isn't fate. How bundlers merge modules, why tree shaking fails silently, and how to split code so users only load what they need.

#performance#bundling#javascript#code-splitting#frontend

Ashish Apr 3, 2026 13 min read