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Ezno JS compiler; ESLint v8.24.0; import maps; JS landscape

ES.nextNews: the latest in JavaScript and cross-platform tools
Curated by Dr. Axel Rauschmayer and Johannes Weber.

ES.next News

The latest in JavaScript and cross-platform tools

Sneak peek at Ezno, a JavaScript compiler with type checking and type-enabled optimizations
kaleidawave.github.io   @kaleidawave
Ezno is a JavaScript-to-JavaScript compiler. Highlights:
  • Planned availability: before the end of 2022.
  • Static type checking:
    • Performs static type checking with more inference than TypeScript.
    • Type annotations in TypeScript syntax are optional.
  • Supports JSX.
  • Optimizations:
    • Removes the Virtual DOM from React apps.
    • Enables replacing JSON blobs in server-rendered pages with incremental state hydration.
  • Has a Language Server Plugin (for Visual Studio Code etc.).
  • Written in Rust.


New book – free online: “Shell scripting with Node.js” by Axel Rauschmayer
exploringjs.com Sponsor   @rauschma
Learn Node.js, npm and packages and use them to create cross-platform shell scripts.


ESLint v8.24.0 released
eslint.org   @m_djermanovic, @geteslint
The highlight of this release is a new rule: logical-assignment-operators. It lets us either require or disallow logical assignment operators:
  • a &&= b is (roughly) equivalent to a = a && b
  • a ||= b is (roughly) equivalent to a = a || b
  • a ??= b is (roughly) equivalent to a = a ?? b


Everything you need to know about JavaScript import maps
www.honeybadger.io   @ayIsaiah, @honeybadgerapp
In web browsers and some other JavaScript platforms, import maps let us map module specifiers used in imports to different ones (that are usually more complicated). That has a variety of benefits, as this article explores.


The JavaScript landscape is exciting again
www.strictmode.io   @janis_t
This blog post covers:
  • Next-gen tooling: esbuild, SWC, Vite
  • Runtimes: Bun
  • Meta-frameworks: Next.js, Remix
  • Infrastructure: Vercel, Edge Computing (e.g. Fly.io)
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TC39 meeting

Tuesday, September 20, 2022

ES.nextNews: the latest in JavaScript and cross-platform tools Curated by Dr. Axel Rauschmayer and Johannes Weber. ES.next News The latest in JavaScript and cross-platform tools Updates from TC39

JavaScript trademark; Babel 7.19.0; Rome Tools 0.9.0; npm supply chain security; package scripts

Tuesday, September 13, 2022

ES.nextNews: the latest in JavaScript and cross-platform tools Curated by Dr. Axel Rauschmayer and Johannes Weber. ES.next News The latest in JavaScript and cross-platform tools Dear Oracle, please

ECMAScript 2022; block statements; void 0

Tuesday, June 28, 2022

ES.nextNews: the latest in JavaScript and cross-platform tools Curated by Dr. Axel Rauschmayer and Johannes Weber. ES.next News The latest in JavaScript and cross-platform tools Dear readers! We are

Prettier 2.7; Deno 1.23; web streams; block statements; statically transform module specifiers

Tuesday, June 21, 2022

ES.nextNews: the latest in JavaScript and cross-platform tools Curated by Dr. Axel Rauschmayer and Johannes Weber. ES.next News The latest in JavaScript and cross-platform tools Prettier 2.7: new --

TC39 meeting in June; Rome Tools 0.6.0; aborting asynchronous tasks; querying node_modules

Tuesday, June 14, 2022

ES.nextNews: the latest in JavaScript and cross-platform tools Curated by Dr. Axel Rauschmayer and Johannes Weber. ES.next News The latest in JavaScript and cross-platform tools Updates from TC39

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