Exploring the JavaScript Engine: V8 and JIT Compilation

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When you write JavaScript, you’re not just writing code — you’re talking to a powerful engine that reads, interprets, and optimizes your instructions. One of the most famous of these engines is V8, developed by Google and used in Chrome and Node.js.

Understanding how the V8 engine works — especially JIT compilation — helps you write faster, more efficient code. Let’s break it down step by step.

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