napajs
hermes
| napajs | hermes | |
|---|---|---|
| 6 | 42 | |
| 9,238 | 9,384 | |
| 0.0% | 0.8% | |
| 0.0 | 9.8 | |
| over 1 year ago | 5 days ago | |
| C++ | C++ | |
| GNU General Public License v3.0 or later | MIT License |
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.
napajs
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A list of JavaScript engines, runtimes, interpreters
Napa.js
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Napa.js: A multi-threaded JavaScript runtime
Each thread or worker is a V8 Isolate, each with their own GC. I don't think WeakMaps could cross the isolate boundary.
The project lists a set of "transportable" types, which can be passed in as an argument when calling a worker function - https://github.com/microsoft/napajs/blob/master/docs/api/tra...
- NapaJS: Multi-Threaded Processing for Node.js
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
đź“ś 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 it’s a JS engine for React Natve - https://hermesengine.dev/
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Don't pay for painfully slow React Native iOS builds anymore.
💉 Building and injecting a JS bundle a basic concept: If the native code wasn’t 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.)
What are some alternatives?
socket - A cross-platform runtime for Web developers to build desktop & mobile apps for any OS using any frontend library.
react-native-debugger - The standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools
ringojs - RingoJS is a JavaScript platform built on the JVM and optimized for server-side applications.
v8.dev - The source code of v8.dev, the official website of the V8 project.
VectorizedKernel - Running GPGPU-like kernels on CPU with auto-vectorization for SSE/AVX/AVX512 SIMD Architectures
nodejs-mobile - Full-fledged Node.js on Android and iOS
ONE - On-device Neural Engine
dayjs - ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
hinapi - Node.js native addons without node-gyp!
quickjspp - Port of QuickJS Javascript Engine.
RaftLib - The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators
react-native-quick-base64 - A fast base64 module for React Native