Tree Shaking and Code Splitting in JavaScript

try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3861766) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Ashish Kumar Posted on May 1 • Originally published at renderlog.in Tree Shaking and Code Splitting in JavaScript #performance #bundling #javascript #codesplitting A 2MB gzipped JavaScript bundle is ~7MB for V8 to parse and compile. On a mid-range Android at 3G, that is 12 seconds before a single interaction is possible. Bundle size is not an abstract metric — it is directly proportional to Time to Interactive on real hardware.

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