Why Your TypeScript Enum Is 5KB in Your Bundle

Episode 51 of The Web Development Podcast: Lucas and Luna investigate why TypeScript enums bloat your JavaScript bundle by 5KB or more. They walk through the actual compiled output — a reverse-lookup object — and compare it to simpler alternatives like const objects and union types. Using real-world examples from a 2026 React dashboard, they measure the bundle impact, discuss when an enum is actually worth the cost, and show how tree-shaking fails on most enum patterns. By the end, you'll know exactly when to reach for an enum and when to use a 50-byte alternative. Plus: a quick note on how listener support keeps this show ad-free. #TypeScript #JavaScript #BundleSize #WebPerformance #Frontend #React #TreeShaking #Coding #WebDev #FexingoTechnology #TechnologyPodcast #SoftwareEngineering #WebDevelopmentPodcast #Enum #ConstObject #UnionType #BuildOptimization #CodeReview #TypeScript #JavaScript #BundleSize #WebPerformance #Frontend #React #TreeShaking #Coding #WebDev #FexingoTechnology #TechnologyPodcast #SoftwareEngineering #WebDevelopmentPodcast #Enum #ConstObject #UnionType #BuildOptimization #CodeReview Keep every episode free: buymeacoffee.com/fexingo