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V8
Google’s high-performance open source JavaScript and WebAssembly engine. Our mission: enable developers to build a faster future web.
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V8 Sep 12
Same great V8 t̵a̵s̵t̵e performance 🔥, now with 20% less s̵u̵g̵a̵r memory overhead ♻️.
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Mathias Bynens Aug 28
🔥 The story of a performance cliff in React ➡️ how are JavaScript values represented in memory? ➡️ what are shape migrations & deprecations? ➡️ how do Object.{preventExtensions,seal,freeze} work?
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V8 Aug 28
👻 Recently, React core hit a scary V8 performance cliff. Here’s a technical deep dive explaining what happened behind the scenes in V8, and how we fixed it!
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V8 Aug 28
👻 Recently, React core hit a scary V8 performance cliff. Here’s a technical deep dive explaining what happened behind the scenes in V8, and how we fixed it!
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V8 Aug 27
🔥 Optional chaining syntax is coming to JavaScript! This feature enables readable and concise expression of property accesses with built-in nullish checking. explains:
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V8 Aug 27
🔥 Optional chaining syntax is coming to JavaScript! This feature enables readable and concise expression of property accesses with built-in nullish checking. explains:
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V8 Aug 19
Replying to @passcod
It helps for that case as well! See this section:
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Mathias Bynens Aug 14
🔥 ES2019 subsume JSON a.k.a. JSON ⊂ ECMAScript is shipping in Chrome, Firefox, Safari, and Node.js! Thanks to this feature, JSON.stringify output can now safely be embedded as a literal within JavaScript programs.
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V8 Aug 14
🔥 One of the most underrated ES2019 features is “subsume JSON”, a.k.a. “JSON ⊂ ECMAScript”. It simplifies the language & enables interesting meta-programming use cases. JSON.stringify output can now be embedded as a literal within JavaScript programs!
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V8 Aug 13
🔥 What’s new in V8 v7.7? Lazy feedback allocation, faster WebAssembly background compilation, stack trace improvements, and new Intl.NumberFormat functionality!
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Mathias Bynens Aug 13
Performance boosts in v7.7 / Chrome 77: 🚀 WebAssembly background compilation 🏎 stack traces ⚡ lazy feedback allocation
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V8 Aug 13
🔥 What’s new in V8 v7.7? Lazy feedback allocation, faster WebAssembly background compilation, stack trace improvements, and new Intl.NumberFormat functionality!
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Mathias Bynens Aug 8
🔥 The Intl.NumberFormat API for localized number formatting is now more capable than ever! Here’s what’s new:
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Mathias Bynens Jul 24
🔥 Promise.allSettled advanced to stage 4, and is coming soon to Chrome, Firefox, and Safari!
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Mathias Bynens Jul 16
🔥 globalThis is available in Chrome, Firefox, Safari, and Node.js!
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Mathias Bynens Jul 9
I generally love every new feature that makes it through the TC39 process, but WeakRefs are special in that they unlock a brand-new capability. Their behavior cannot be emulated. JavaScript is getting more powerful, y’all! 🔥
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V8 Jul 9
🔥 Weak references and finalizers are (finally) coming to JavaScript! and explain:
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V8 Jul 9
🔥 Weak references and finalizers are (finally) coming to JavaScript! and explain:
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Mathias Bynens Jul 2
🔥 Array.prototype.sort is now stable in Chrome, Firefox, Safari, and Node.js!
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V8 Jul 1
🔥 Emscripten is switching to the LLVM WebAssembly backend, resulting in… ➡️ much faster link times ➡️ smaller and faster code ➡️ support for all LLVM IR ➡️ new WebAssembly features ➡️ faster general updates from upstream LLVM explains:
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