Conf42 JavaScript 2020
2020-09-30..2020-10-01
-- online --
[Conf42 JavaScript 2020, Conf42 JavaScript 2022, Conf42 JavaScript 2023, Conf42 JavaScript 2025]
who it's for
javascript developers, front end developers, web performance engineers, React developers, Vue developers, full stack developers, machine learning engineers
topics
client-side neural nets with Brain.js; TensorFlow.js image upscaling; progressive web apps and service workers; route-level dynamic imports and lazy loading; Vue single-file build optimizations; visual React front-end builders; canvas pixel manipulation and web workers; WebAssembly from C/C++ via Emscripten; Mapbox WebGL readPixels and flood-fill; MongoDB schema design and embedding; form validation with Vest; server rendering with Puppeteer and SSR tools
| title | author | length |
|---|---|---|
| Making VR more interesting with JS and Brain.js | Milecia McGregor | 35m |
Builds a web VR search-and-find game with A-Frame primitives and a Node/Express backend that uses Brain.js to train a tiny neural net (configured with three… | ||
| Building Awesome UI Apps with VUE | Ahmed Bankole | 26m |
Vue claims a tiny 16 KB single-file build and reports higher runtime speed in the presenter’s tests (Vue ~45% vs React ~20 and Angular ~25), recommends a… | ||
| Image Super-Resolution in JS | Kevin Scott | 21m |
Browser-based image upscaling that actually works: an open source pipeline using Upscaler.js and Tensorflow.js converts published ESRGAN models (via Colab) to… | ||
| Using our Graphics Library to show them analytics! | Renaldi Gondosubroto | 44m |
Builds a custom JavaScript graphics library that actually works: it uses Canvas and jQuery to draw eight separate charts, polls ThingSpeak via AJAX every… | ||
| Bulding (Progressive) Web Apps | Michael Solati | 25m |
Builds a movie PWA that passes Lighthouse by adding a service worker for caching, a web app manifest for installability and splash screens, and server… | ||
| From SQL to NOSQL - a gentle intro for Devs | Joe Karlsson | 18m |
Explains concrete differences: MongoDB stores data as documents as BSON instead of rows, supports indexing (B‑trees), multi‑document ACID transactions, and… | ||
| Put down JS - how building fundamentals will help you LvlUp! | Colby Fayock | 19m |
A concrete claim: mastering HTML and CSS — semantic tags, alt text, flexbox layout, percentage padding for aspect ratios, viewport units and CSS-only toggles… | ||
| Form Validations with VEST | Evyatar Alush | 23m |
Vest is a framework-agnostic validation library that treats validations like unit tests: you write suites with test/enforce, plug them into a React form in… | ||
| Canvas Pixel Transformation: Beauty comes slowly | Victor Lebrun | 36m |
A Mapbox canvas is read with Mapbox webgl readPixels and converted into a 2D ImageData array, a flood‑fill area detector paints road‑delimited mosaics, and the… | ||
| Back to the FUTURE! From C++ to JS | Alejandro Mercado | 34m |
Claim: compile real C/C++ into WebAssembly and run it inside modern JS frameworks with practical results. Uses Emscripten to produce .wasm and a runtime .js… | ||
| MongoDB Schema Design - best practices | Joe Karlsson | 36m |
Covers concrete MongoDB schema choices: use embedded documents to serve common queries with one fast, atomic read and avoid joins, or use references when… | ||
| Offline Web Apps don't exist anymore! | Francesco Leardini | 41m |
Progressive Web Apps deliver near-native offline UX by combining service workers with explicit caching strategies (cache‑first, network‑first… | ||
| Building React Frontends visually | Yang Zhang | 29m |
A demo of a browser-based visual builder that generates React components and keeps them live-synced into a local app: a ToDo app and reusable Task component… | ||
| Let the Main Thread Breathe! | Majid Hajian | 31m |
Shows how to stop UI jank by moving heavy work off the main thread using WebWorker, Worklet, WebAssembly. Demonstrates using Comlink to promisify postMessage… | ||
| Internet of Toilets 🚽🐈💩 how I built a Kitty Litter using JS | Joe Karlsson | 19m |
Built a working IoT litter box that logs every cat visit and a passive weight reading, using a Raspberry Pi running Node.js with Johnny-Five for GPIO and a… | ||
| Building maps with Impact on React and the Jamstack | Colby Fayock | 20m |
Maps built with Leaflet and React Leaflet pull base tiles from OpenStreetMap or NASA imagery, add GeoJSON overlays and markers, and compile as a Gatsby… | ||
| nothing matches | ||