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Overview
V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++.
News
How we made JSON.stringify more than twice as fast
JSON.stringify is a core JavaScript function for serializing data. Its performance directly affects common operations across the web, from serializing data for a network request to saving data to localStorage . A faster JSON.stringify translates to quicke
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Speculative Optimizations for WebAssembly using Deopts and Inlining
In this blog post, we explain two optimizations for WebAssembly that we recently implemented in V8 and that shipped with Google Chrome M137, namely speculative call_indirect inlining and deoptimization support for WebAssembly. In combination, they allow u
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JavaScript's New Superpower: Explicit Resource Management
The Explicit Resource Management proposal introduces a deterministic approach to explicitly manage the lifecycle of resources like file handles, network connections, and more. This proposal brings the following additions to the language: the using and awa
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Giving V8 a Heads-Up: Faster JavaScript Startup with Explicit Compile Hints
Getting JavaScript running fast is key for a responsive web app. Even with V8's advanced optimizations, parsing and compiling critical JavaScript during startup can still create performance bottlenecks. Knowing which JavaScript functions to compile during
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Land ahoy: leaving the Sea of Nodes
V8's end-tier optimizing compiler, Turbofan, is famously one of the few large-scale production compilers to use Sea of Nodes (SoN). However, since almost 3 years ago, we've started to get rid of Sea of Nodes and fall back to a more traditional Control-Flo
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