hermes
v8.dev
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hermes | v8.dev | |
---|---|---|
42 | 72 | |
9,369 | 914 | |
1.3% | 1.9% | |
9.8 | 7.4 | |
6 days ago | 7 days ago | |
C++ | JavaScript | |
MIT License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
hermes
- Hermes Sandboxed Runtime
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LLRT: A low-latency JavaScript runtime from AWS
Hermes is a big one as well: low startup latency, low memory
https://hermesengine.dev/
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A list of JavaScript engines, runtimes, interpreters
Hermes
- Implementation of Arrays via Segments (By Hermes for JavaScript)
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Threads uses Compose!
InstagramBundle.js.hbc.spk.xz is likely a compressed version of Hermes bytecode (js.hbc)"
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Removing Timezones from Dates in Javascript
In React Native's case, it uses an engine called Hermes:
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This Week In React-Native #137: Expo Code Elimination, Monorepo, Hermes, Chain React, EAS, Skia, Expo Router, VisionCamera, React-Native-Graph
๐ I made JSON.parse() 2x faster: Radek proposes to improve the performance of Hermes by using very fast C++ libs based on SIMD instructions. Interesting to read even if you don't use React-Native. Ongoing discussions on the Hermes PR.
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I made JSON.parse() 2x faster
Thanks! There's a preliminary PR with a discussion here: https://github.com/facebook/hermes/pull/933 (and broader context here: https://github.com/facebook/hermes/issues/811 ). But we'll see if there's any interest on Hermes' side to merging it. They definitely want to improve the parser, but it's unclear to me if they want to take on the simdjson/simdutf dependencies.
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Hermes, an Open Source Document Management System
For me itโs a JS engine for React Natve - https://hermesengine.dev/
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Don't pay for painfully slow React Native iOS builds anymore.
๐ Building and injecting a JS bundle a basic concept: If the native code wasnโt changed, simply create JS bundle and inject it into the precompiled application. (You must take an extra step to convert a js file to bytecode if you use the Hermes js engine.)
v8.dev
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Show HN: Invertornot.com โ API to enhance your images in dark-mode
Semi-related - I saw this trick on https://v8.dev a while back, but `filter: hue-rotate(180deg) invert();` can be a neat CSS trick to 'dark mode' some kinds of graphics. The `hue-rotate` help a bit to keep 'blues blue' etc.
It's far from perfect, but it's a neat trick to be aware of.
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Top 8 Recent V8 Updates
V8 is a high-performance JavaScript engine developed by Google. Its purpose is to convert JavaScript code into machine code for execution by the underlying hardware. Primarily developed by the V8 team at Google, the engine focuses on speed and efficiency. In particular, it relies on just-in-time compilation and uses inline caching for high performance.
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A list of JavaScript engines, runtimes, interpreters
V8
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C++ Specification vs Implementation
Exactly the same as JavaScript engines. Be it Mozilla's SpiderMoneky, Google's V8, Apple's Webkit, or Microsoft's Chakra. No matter how specific we draft a specification there is always room for interpretation. Every team has a different take on what part of a spec is describing. Oftentimes it's just a matter of varying pros and cons of different approaches on the road to matching spec; various teams just kind of have to pick a direction and run with it. Other times a spec is not only too vague, but clearly short-sighted to boot.
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Abstract Syntax Trees and Practical Applications in JavaScript
Remember that we earlier established that every source gets parsed into an AST at some point before it gets compiled or interpreted. For example, platforms like Nodejs and chromium-based browsers use Gooogle's V8 engine behind the scenes to run JavaScript and of course, some AST parsing is always involved before the interpreter kicks in. I looked V8's source and I discovered it uses its own internal parser to achieve this.
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Bun vs Node.js: Everything you need to know
While Node.js uses Google's V8 engine that power's Chrome browser, Bun uses JavaScriptCore (JSC), which is an open source JavaScript engine developed by Apple for Safari.
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The Ascent of Node.js: How a runtime changed the Web
While the idea of server-side JavaScript was not novel, what powered Node.js was! The V8 engine, birthed by Google for Chrome, was now driving Node.js, bringing unparalleled speed and performance to JavaScript execution.
- A Magia do Event Loop
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Embracing Modern JavaScript Features in ES13 ES2022
V8 JavaScript Engine
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Introduction to memory management in Node.js applications
Node runs on the V8 JavaScript engine, which handles memory allocation. The entirety of memory used for a running Node application is held in what is known as a Resident Set. This includes:
What are some alternatives?
react-native-debugger - The standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools
babel-sublime - Syntax definitions for ES6 JavaScript with React JSX extensions.
nodejs-mobile - Full-fledged Node.js on Android and iOS
bun - Incredibly fast JavaScript runtime, bundler, test runner, and package manager โ all in one
dayjs - โฐ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
vercel - Develop. Preview. Ship.
quickjspp - Port of QuickJS Javascript Engine.
libuv - Cross-platform asynchronous I/O
react-native-quick-base64 - A fast base64 module for React Native
0.30000000000000004 - Floating Point Math Examples
repack - A Webpack-based toolkit to build your React Native application with full support of Webpack ecosystem.
c8 - output coverage reports using Node.js' built in coverage