Answer
The V8 engine is Google’s JavaScript engine that compiles JavaScript into fast machine code, helping Node achieve high speed.
Quick Answer
V8 is Google's open-source JavaScript engine — the same one that runs JavaScript in Chrome. It compiles JavaScript directly to native machine code (JIT compilation) instead of interpreting it, making it very fast. Node.js uses V8 under the hood to execute your server-side JavaScript code.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ