🚀 Understanding V8 JIT: How JavaScript Gets Compiled and Optimized

JavaScript’s performance relies on V8’s Just-In-Time (JIT) compilation, but did you know deoptimization can slow down your code? In this post, I break down:

✅ How V8’s JIT pipeline works (Ignition, Sparkplug, TurboFan)
✅ What causes deoptimization and…


This content originally appeared on DEV Community and was authored by Sajiron

JavaScript's performance relies on V8's Just-In-Time (JIT) compilation, but did you know deoptimization can slow down your code? In this post, I break down:

✅ How V8's JIT pipeline works (Ignition, Sparkplug, TurboFan)
✅ What causes deoptimization and how it impacts UI performance
✅ Best practices to avoid slowdowns and keep your JS running smoothly

📖 Read the full blog here: 🚀 How JavaScript Works: Understanding V8 JIT and Its Impact on UI Performance


This content originally appeared on DEV Community and was authored by Sajiron


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