JSworld Conference 2023
2023-02-08..2023-02-10
Amsterdam, Netherlands
[JSWorld Conference 2021, JSWorld Conference USA 2021, JSWorld Conference 2022, JSWORLD Conference 2022 Online, JSworld Conference 2023, JSWorld Conference 2024]
who it's for
frontend developers, full-stack developers, framework authors, build and tooling engineers, QA engineers, engineering managers, platform engineers
topics
React server components; Qwik resumability and per-function chunks; Astro partial hydration and MDX; Angular standalone components and image directive; Vite ecosystem and tooling; Vue ecosystem updates; Preview deploys with Neon and Vercel; Type-safe markdown with Zod; Protobuf ES and Connect Web; Remix loaders, actions and defer; Browser automation with CDP and WebDriver; HAR-driven API tests from real devices
| title | author | length |
|---|---|---|
| Accelerating developer experience in Angular -JSWORLD 2023 | Simona Cotin | 23m |
Chrome DevTools now honors an X Google ignore list extension to source maps so stack traces and quick-open skip framework and node_modules code, making author… | ||
| The Root of Auth Thingz | Ashley Narcisse | 25m |
Claims that relationship or graph-based permission models reduce authorization bypass in federated GraphQL setups and proposes implementing a Zanzibar-like… | ||
| Type-safety is eating the world | Fred K. Schott | 22m |
Claims that Type-safety for Markdown in Astro 2.0 gives end-to-end guarantees: a Zod-backed schema validates every markdown file at runtime and auto-generates… | ||
| All About React 18 | Aashima Ahuja | 19m |
Claims that React 18 enables automatic batching even across async boundaries, introduces concurrency that can pause or abandon renders, and adds hooks like… | ||
| How browser automation works behind the scenes | Jecelyn Yeen | 26m |
Explains why classic WebDriver uses an HTTP request per command causing HTTP long polling overhead while CDP talks over a bi-directional WebSocket and is… | ||
| The missing guide for deciding between 3rd party library and custom code -JSWORLD 2023 | Glenn Reyes | 24m |
Argues a concrete decision checklist: complexity, speed, API coverage, docs, maintenance, license, illustrated by a tiny jQuery class‑toggle snippet that shows… | ||
| Qwik: web revolution by default | Giorgio Boa | 21m |
Claims that Qwik ships a 1 kilobyte loader and defers every interaction into on-demand chunks so pages render as plain HTML/CSS and only execute JS when a user… | ||
| Astro - Less JavaScript, Faster website - JSWORLD2023 | Elian van Cutsem | 24m |
Astro claims it ships no JavaScript by default and only sends code for components explicitly marked for hydration, demonstrated with a counter that fails until… | ||
| Demystifying Protocol Buffers and gRPC | Dimitri Mitropoulos | 26m |
Claims that Protocol Buffers and RPC become web-friendly are demonstrated with three working demos (trpc, GraphQL, protobuf) of the same to‑do app; generated… | ||
| Fast Backends for Faster Frontends with Remix | Chance Strickland | 25m |
Claim: Remix moves backend patterns into route files so UI and data live together. It shows loaders run server‑side per GET and return standard Response… | ||
| Staging is Dead, Long Live Previews! | Anna Stepanyan | 17m |
Claims that a full‑stack preview workflow is live with Neon and Vercel, creating a database per PR that gets Prisma migrations applied during the Vercel build… | ||
| How to Leverage mobile app tests for API tests | Yi Min Yang | 19m |
Claims that network traffic from a real device becomes reusable tests and monitors and shows a live demo of that pipeline. Uses Sauce Labs Real Device Cloud… | ||
| State of Storybook 7 | Yann Braga | 27m |
Storybook 7 claims a major stability and performance upgrade: a refreshed UI, first-class Vite support and new framework integrations like Next.js, plus auto… | ||
| The tipping point of web development is here | Kobi Nemni | 19m |
Claim is concrete: Wix positions Velo full‑stack platform as a real alternative to hand‑rolling apps by combining Wix Data, Wix RealTime, webhooks and a… | ||
| Building Age Of Empires 2 with React: Rise of the Browser | Joe Hart | 22m |
Claims rebuilding Age of Empires 2 entirely in React with no game engine and rendering every tile is a DOM element using raw JS CSS and React. Implements… | ||
| Preserving and Delivering Retro Game Footage for Modern Viewers with JS and WebGL | Travis McGeehan | 28m |
Provides a concrete pipeline: capture at original console resolution (256×240 with 4:3 display correction), encode lossless 4:4:4 (AV1 preferred), and render… | ||
| You Aren’t Going To Need It - How To Stop Writing Code That We Don’t Need | Yosef Arbiv | 08m |
A real bug arises from a memory leak in a third‑party library that crashes embedded devices; the problematic code supports a feature that is deleted because no… | ||
| Developers: write code, not content | Andrew Kumar | 24m |
Claim is that developers should write code not content backed by numbers not slogans: surveys show 50% of developers doing content and spending 4–20 hours a… | ||
| Remix your UI & UX to another level | Arisa Fukuzaki | 28m |
Shows a working Remix internationalization setup using remix-i18next and a headless CMS (Storyblok) so translators manage content instead of source files… | ||
| Coding Automation Lesson #1: Please Be Lazy | Cristian Daniel Marquez Barrios | 37m |
Includes concrete automation: config files for ESLint and Prettier, JSON templates for VS Code snippets, building a small custom CLI that scaffolds components… | ||
| Why Accessibility Benefits Us All | Felix Hoffmann | 21m |
Claims that 1.6 billion users are affected and that accessibility improves SEO and ROI; concrete fixes like semantic HTML, high contrast, resizable text… | ||
| Machine Learning with Javascript | Ikram Babs-Lawal | 18m |
Claim: JavaScript can build and train models in browser and Node without Python, using libraries like TensorFlow.js, Brain.js, MindJS, ConvNetJS and Neataptic… | ||
| Next Level E-commerce - Horizon Storefront | Lewis Voncken | 24m |
A move from Magento to a reusable frontend that supports Shopware BigCommerce and Shopify, proven by a December 2021 proof of concept and a live Goosecraft… | ||
| Keep alive your typescript definitions using Zod | Luca Del Puppo | 21m |
Claim: TypeScript types vanish at build time and Zod keeps them alive at runtime. Concrete setup: a React demo fetches orders from a JSON API, a schema mirrors… | ||
| Using Cypress to improve Test Reusability | Mesut Durukal | 25m |
Claims a Cypress-based reusable test framework that eliminates duplication by using config variables, global hooks, test-level config and intercepts, and… | ||
| A Beginner’s Guide To Storybook | Niamh McCooey | 31m |
Claims that Storybook automates visual feedback and testing, cutting deployment blockers and letting teams ship faster; demonstrates using create‑react‑app… | ||
| Modern Testing Practices in Frontend Applications | Dan Neciu | 26m |
Claims that the testing pyramid is obsolete for modern JS and that speed and confidence come from specific practices not promises; a production app with 20… | ||
| WebAssembly beyond the browser | Shivay Lamba | 22m |
Concrete examples show Rust functions compiled to WebAssembly and called from JavaScript, with a repo and starter that builds a classify.wasm and runs an app… | ||
| State of the Vuenion 2023 - Vuejs Amsterdam 2023 | Evan You | 36m |
State of the Vuenion lays out concrete moves: adoption of vitest and migration of 175 test files (≈2,600 cases) cuts CI from 1:38 to 32s, build/type pipeline… | ||
| Vite Panel Discussion 2023 | Evan You | 01h 19m |
Panel explains Vite as a dev server with blazing HMR and a Rollup-based build, cites 2–3 million weekly downloads and an ecosystem of plugins, Vitepress and… | ||
| Live Stream with Creator of Vue and Astro, Vite Panel and React.js by Meta | Astro, Evan You, React.js by Meta | 03h 17m |
Vue adoption triples year over year, Volar 1.0 and a 12× faster Vue build (now 18.8s) actually land, and Vapor mode prototypes beat V3 on microbenchmarks; Vite… | ||
| Reusable Server Components in React Workshop | Mettin Parzinski, Will Bishop | 01h 14m |
Builds a Next.js app using the app directory and Miro tooling, actually imports moment.js on the server so the client bundle size stays unchanged (demo shows… | ||
| Jessy The - How to build a web3-app: from frontend to smart contract - JSWORLD 2023 | Jessy The | 01h 45m |
Shows how to build a full frontend-to-smart-contract Dapp that actually mints NFTs using Remix, MetaMask, ethers.js, Goerli testnet. Code uses React for the… | ||
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