What is V8?

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V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++. It is used in Chrome and in Node.js, among others. It implements ECMAScript and WebAssembly, and runs on Windows, macOS, and Linux systems that use x64, IA-32, or ARM processors. V8 can be embedded into any C++ application.

Latest posts and feature explainers

  1. How we made JSON.stringify more than twice as fast internals
  2. Speculative Optimizations for WebAssembly using Deopts and Inlining WebAssembly internals
  3. JavaScript's New Superpower: Explicit Resource Management ECMAScript
  4. Giving V8 a Heads-Up: Faster JavaScript Startup with Explicit Compile Hints JavaScript
  5. Land ahoy: leaving the Sea of Nodes JavaScript internals
  6. Turbocharging V8 with mutable heap numbers JavaScript benchmarks internals
  7. Introducing the WebAssembly JavaScript Promise Integration API WebAssembly
  8. WebAssembly JSPI has a new API WebAssembly
  9. The V8 Sandbox security
  10. Iterator helpers ECMAScript

More articles can be found in the blog archive and the features section.

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