class: middle, center
JavaScript Runtimes
STUDDi@CADDi（2023-10-10）
Hiroyuki Moriya
Self Introduction
- Name: Hiroyuki Moriya
- Join: 2023-03
This is my first presentation in English
Sorry for my poor English.
JavaScript Runtime is...
JavaScript's execution environments.
Excludes browsers in this session.
My goal today is
- to know other runtimes than Node.js for you
- to know these features for you
Intended audience
Major JavaScript Runtimes
- Node.js
- Deno
- Bun
Node.js (1/n)
- First Release: 2009
Deno
- TS が扱える
- パーミッション
- Rust製
- Bun の速さに影響を受けてUnsafe使って
- 独自のパッケージ管理
- npmにも対応
- V8
https://mryhryki.com/blog/scrap/20220816-083523.html
https://mryhryki.com/blog/slide/2022-03-28-introduction-to-deno.html
マルウェアの話
https://efcl.info/2023/08/29/ni.zsh-socket.dev/
Deno の特徴
Ryan Darl が Node.js の10の反省から作った
Deno の特徴
独自のモジュールシステム
Secure by default
Native support for TypeScript and JSX
Testing, linting, formatting, and more out of the box
High performance async I/O with Rust and Tokio
Backwards compatible with Node.js and npm
TypeScript Support
npm サポート
Node API サポート
HTTP Server 高速化
https://techfeed.io/events/techfeed-experts-night-8
Bun に触発されてHTTP Server の高速化
Unsafe Rust を使いテストが落ちたので直したというエピソード
ほぼNode.js?
Bun
- 2023/07
- 2023/09/07 v1.0
- Node.js 互換
- TS
- node_modules 作らない
https://mryhryki.com/blog/scrap/20230825-084825.html
https://mryhryki.com/blog/scrap/20220826-114322.html
https://gihyo.jp/article/2023/01/tfen005-bun
JavaScript Engine V8じゃない
Node.js compatibility
Fast running performance
No More Madness
TypeScript & JSX Support
Web Standard APIs
Watch mode
History
https://mryhryki.com/blog/scrap/20221221-173532.html
Node.js is effective from Deno
- Deno > Node.js:
- Permissions
- Bun > Deno
- x
Asynchronous Library
Node.js: libuv
Deno: tokio
https://github.com/denoland/deno/issues/2340
Bun: kqueue/iouring
https://gihyo.jp/article/2023/01/tfen005-bun
Share
State of JavaScript 2022: Other Tools
Popular
https://mryhryki.com/blog/scrap/20221114-080338.html
WinterCG
https://mryhryki.com/blog/scrap/20220520-081037.html
https://mryhryki.com/blog/scrap/20230411-064812.html
Workerd
https://mryhryki.com/blog/article/2022-09-29-workerd.html
Memory
やらないで良い気がするけどめも
https://mryhryki.com/blog/scrap/20220921-110153.html