Node.js TutorialLesson 7Free preview

Node V8 Engine

This lesson is part of Node.js · All levels

Summary

V8 is an open source JavaScript engine from Google that is at the heart of Node.js. V8 converts JavaScript code into bytecode and then optimizes it into native code through Just-In-Time compilation. This high performance makes Node capable of handling thousands of requests simultaneously.

Key points

V8 was developed by Google for Chrome and is also used by Node.js
JS code compiled Just-In-Time into native code for high performance
V8 uses techniques such as hidden classes and inline caching
The node can be compiled with a specific version of V8; --v8-options display the engine options.

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