Optimize JavaScript bundle size

Excessive JavaScript increases parse and execution time, especially on low-end devices, leading to sluggish user experiences and high data costs.

Quick Reference

• Keep individual JS bundles under 200KB (compressed)
• Large bundles delay Time to Interactive (TTI) and First Input Delay (FID)
• Use code-splitting and tree-shaking to reduce unused code

Check

Review the JavaScript bundle sizes and identify any files exceeding 200KB (Gzip/Brotli).

Fix

Implement code-splitting, tree-shaking, and dependency audits to reduce the size of the JavaScript bundles.

Explain