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docs
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What's involved with NativeScript open source?
Right now, the NativeScript docs are undergoing a major overhauling in this repo: https://github.com/NativeScript/docs/pulls which contains over 70 pull requests already.
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?
solid-js - SolidJS for NativeScript
react-native-debugger - The standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools
v8.dev - The source code of v8.dev, the official website of the V8 project.
nodejs-mobile - Full-fledged Node.js on Android and iOS
dayjs - ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
quickjspp - Port of QuickJS Javascript Engine.
react-native-quick-base64 - A fast base64 module for React Native
repack - A Webpack-based toolkit to build your React Native application with full support of Webpack ecosystem.
react-native-aes-gcm-crypto - AES-GCM encryption/decryption for React Native
react-native-skia - High-performance React Native Graphics using Skia
intellij-plugins - Open-source plugins included in the distribution of IntelliJ IDEA Ultimate and other IDEs based on the IntelliJ Platform
just - the only javascript runtime to hit no.1 on techempower :fire: