JS without build tools; single-executable applications via Node.js; RegExps and streamed text; Well-known symbols

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

Writing JavaScript without a build system
jvns.ca @jvns

Quoting the blog post:

I want to talk about what’s appealing to me about build systems, why I (usually) still don’t use them, and why I find it frustrating that some frontend JavaScript libraries require that you use a build system.
I’m writing this because most of the writing I see about JS assumes that you’re using a build system, and it can be hard to navigate for folks like me who write very simple small JavaScript projects that don’t require a build system.

RxDB - A fast, offline-first, reactive database for JavaScript Applications
rxdb.info Sponsor

RxDB is an offline-first, NoSQL-database for JavaScript Applications like Websites, hybrid Apps, Electron-Apps, and Node.js. Reactive means that you can not only query the current state, but subscribe to all state changes like the result of a query or even a single field of a document.

Merged into Node.js: support for single-executable applications
github.com @RaisinTen, @nodejs

The current version of this feature is deliberately minimal – more functionality will be added over time:

Input: a single JavaScript file
Output: a single executable that runs the file

The assumption is that, for now, code is bundled before creating an executable. In the future, executables may contain an internal virtual file system that contains multiple modules and other resources (source).

Let’s make JavaScript RegExps streamy
socket.dev @bmeck, @SocketDev

The blog post points out an issue with current JavaScript regular expressions: It’s difficult to match them against text that arrives in chunks.

Well-known symbols in JavaScript
h3manth.com @hemanth

Quote: “A well-known symbol is a non-registered symbol that’s the same across realms.” Examples are Symbol.iterator and Symbol.hasInstance.

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fast offlinefirst reactive database simple small Javascript projects Dr Axel Rauschmayer

JS without build tools; single-executable applications via Node.js; RegExps and streamed text; Well-known symbols

The latest in JavaScript and cross-platform tools

Key phrases

Older messages

MDN Web Docs; Sorting arrays; JS on WebAssembly; free “JavaScript Allongé” download

TC39 meeting January; Node v19.6.0; Vite 4.1.0; Go-like channels in JS; performance-optimizing ESLint

Bun v0.5; manipulating URLs; speeding up JavaScript

Esbuild v0.17.0; plans for Turbopack; ESLint 2022 review; unhandled promise rejections; runtime environment keys

Npm code explorer; Vite 4.0; Rome v11; ES proposal “iterator helpers”; new Ecma members

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