~javascriptweekly | Bookmarks (200)

ExcellentExport.js: Export Table Data to Excel or CSV — If your app/page has some data in HTML tables and you’d like to export it to CSV or XLSX without any server involvement, this could help.

Why TypeScript 5.8's --erasableSyntaxOnly Matters — “It disables a bunch of features that I don’t think should ever have been part of TypeScript.”

Mastra: A TypeScript AI Framework from the Gatsby Team — From some of the folks behind the Gatsby React framework comes a new way to build LLM-powered agents that perform various tasks, use knowledge bases, and hold memory. Think a meta-framework like Next.js but for AI agents. GitHub repo.

upfetch: An Advanced fetch Client Builder — A TypeScript library to enhance fetch with schema validation, automatic response parsing, and type-safety, while maintaining the familiar fetch API.

Find. Fix. Test: An Intro to App Monitoring with Sentry — Code-level visibility, from pre- to post-release, lets devs find and fix errors and slowdowns and deploy with confidence.

📄 jsPDF 3.0: Client-Side JavaScript PDF Generation — Create tickets, documents, certificates, etc. all on the fly. There’s a live demo on the project’s homepage.

Heat.js: A Heat Map Visualization Library — Think the GitHub contributions heat map. No dependencies, small, responsive, and theme-able. There’s a live demo or its GitHub repo.

Zoompinch: A Pinch-and-Zoom Experience for Vue 3 Apps — Designed to ‘feel native’ on mobile devices. Demo.

swrv: 'stale-while-revalidate' Data Fetching for Vue 3 — Uses a ‘stale-with-revalidate’ cache invalidation strategy (i.e. data is returned from cache immediately but then updated behind the scenes).

TC39 Advances 3 Proposals to Stage 4 — I love seeing Rob Palmer’s tweets about TC39’s progression of JavaScript proposals and this is a good roundup from this week’s meeting in Seattle. Areas covered include near-term features like Float16Array and import defer to more distant things like Math.clamp and Error.captureStackTrace entering stage 1.

Deno 2.2 Released with Quality of Life Improvements — The Deno team took a break from taking on Oracle to get a new feature-packed release of its JavaScript runtime out. We get built-in OpenTelemetry integration, linter updates, a new interactive way to update dependencies, node:sqlite support, TypeScript 5.7, V8 13.4, and much more.

A Powerful JavaScript Reporting Tool Built for the Web — ActiveReportsJS is the premier JavaScript reporting tool designed for advanced data visualizations in web applications. With many different advanced report builders and viewers, insights can be seamlessly shared with your entire user base.

Interop 2025: Features Browser Devs Will Focus on This Year — Interop is an ongoing process where browser devs cooperate on improving features in concert so more Web users can use those features sooner. This year’s focus points include the Storage Access API, pointer/mouse events, phasing out old mutation events, the scrollend event, URLPattern, and more JS/WASM integration.

Do Lake Names Reflect Their Properties? — I know this sounds like a geographical piece, but this developer’s curiosity led to a fun blend of JavaScript and the always useful Overpass Turbo mapping tool.

React Officially Sunsetting Create React App — This move has been bubbling for a long time now, but the React team is now officially recommending CRA-powered apps migrate to a framework (like Next.js) or build tools like Vite.

Which AI Model Is Best for Fixing Unit Test Errors? Claude, o3-mini, GPT-4o? — Better context wins every time. Wallaby enters the chat to give AI what it needs - test coverage and runtime values - to debug smarter.

Learning How to Build Modern Web Extensions — It’s easy to run into outdated docs when building extensions. Lucky for us, Hui has been through the process and shares some tips.

Testing 10 JavaScript Frameworks on Their HTML Defaults — Using a JavaScript framework is now ‘the way’ for many Web site developers, but how do the popular options fare at producing valid, error free HTML?

Ohm: A Parsing Toolkit for JavaScript and TypeScript — It’s been a few years since we covered this project and it’s come along a lot. It’s a library for building PEG-based parsers you can use in interpreter, compilers, analysis tools, etc. and you can even play with its grammar online.

Svader: Create GPU-Rendered Svelte Components — The examples are a good way to get a feel for what this offers.

web-worker 1.5: Consistent Web Workers for the Browser and Node — Want to publish npm modules that use Web Workers and that work in both Node and client-side? In Node, it works as a web-compatible Worker implementation atop worker_threads. In the browser, it’s an alias for Worker.

The React Data Table I Always Wanted — A look into a particularly fast and clean shadcn/ui-based data table component (GitHub repo). See a live demo.

GitHub Extends Its Monaspace Font Family — Monaspace is a fantastic set of monospaced fonts from GitHub targeted at coding use cases. Its new v1.2 release ups the ante by including Nerd Fonts support and symbols, new box drawing glyphs, characters, character variants, ligatures, and more.

Why to Move On to 'ESM-Only' — The march to using ES modules has been going on for years, but if you’re still holding out, there’s probably a good reason why? However, while you can maintain packages supporting both ESM and CommonJS, Anthony thinks it’s time to go ‘ESM only’ and explains why.