La respuesta es Inteligencia Artificial. Todo el mundo cree que esta apreció para preguntarle tonterías, pero en realidad apareció para ayudarnos a los JSDev a recordar cosas y a mejorar la longitud del código espagueti.

JavaScript is biased !!! Some functions start with hoisting privileges. Others start with “ReferenceError: you don’t exist.” Seems fair. If you want to know why JavaScript is biased, read👇 dev.to/kunal_dev/function-de… #JavaScript #WebDev #LearnToCode #Programming #JSDev

Day 6 of building my web based City Builder. I've been working on: ✅ Electricity system ✅ Traffic animation ✅ Pedestrian animation Made some new sprite for the power plant and the water tower with stablediffusionweb.com Built with @PixiJS #SimCity #WebGame #jsdev #indiedev #indiegame

Forget the old and slow MERN stack, Learn the PORN stack. 😂 #DevHumor #ProgrammerMemes #TechTwitter #CodeLife #FullStackDev #JSDev #Brogrammer #CodingMemes #BuildInPublic #ThisIsFine

thb.nabondance.me/rewind やってみた 今年の6月は自分でも狂ってるとは思った JSDevは7月取得だけども1次試験は6月 その月に計2回（それぞれ別資格）落ちてるから6月だけで8回も試験受けてたのか・・・ｗ #salesforce #Salesforce資格合格 #Trailhead

I've always been a serial solo builder 🥷 I loved the speed, the total control, and the simplicity of coding alone 🙂 But building with a team completely changed my perspective. Building solo is Great 💯 Building with a team is a therapy 💚 #demaintech #jsdev

A new library, react-native-ble-nitro, brings JSI-powered Bluetooth Low Energy to React Native — enabling modern, native-level BLE functionality across iOS and Android. 𝗕𝗹𝘂𝗲𝘁𝗼𝗼𝘁𝗵 𝗟𝗼𝘄 𝗘𝗻𝗲𝗿𝗴𝘆 (𝗕𝗟𝗘) 𝗶𝘀 𝗮 𝘄𝗶𝗿𝗲𝗹𝗲𝘀𝘀 𝗽𝗿𝗼𝘁𝗼𝗰𝗼𝗹 𝘂𝘀𝗲𝗱 𝘁𝗼 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝗱𝗲𝘃𝗶𝗰𝗲𝘀 𝗼𝘃𝗲𝗿 𝘀𝗵𝗼𝗿𝘁 𝗱𝗶𝘀𝘁𝗮𝗻𝗰𝗲𝘀 with minimal power use. It’s what powers things like fitness trackers, heart rate monitors, smart locks, and other sensors that need to send small bits of data without draining battery. react-native-ble-nitro (v1.8.0) is built on the Nitro Modules architecture — using JSI and native threads to handle BLE operations with minimal overhead. ➡️ 𝗕𝘂𝗶𝗹𝘁 𝘄𝗶𝘁𝗵 𝗡𝗶𝘁𝗿𝗼 𝗠𝗼𝗱𝘂𝗹𝗲𝘀 ➡️ 𝗜𝗻𝗰𝗹𝘂𝗱𝗲𝘀 𝗮𝗻 𝗘𝘅𝗽𝗼 𝗰𝗼𝗻𝗳𝗶𝗴 𝗽𝗹𝘂𝗴𝗶𝗻 — easy setup without custom native code. ➡️ 𝗦𝗰𝗮𝗻 𝗳𝗶𝗹𝘁𝗲𝗿𝘀, 𝗥𝗦𝗦𝗜 𝘁𝗵𝗿𝗲𝘀𝗵𝗼𝗹𝗱, 𝗻𝗼𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝗠𝗧𝗨 𝗻𝗲𝗴𝗼𝘁𝗶𝗮𝘁𝗶𝗼𝗻, 𝗮𝗻𝗱 𝗶𝗢𝗦 𝘀𝘁𝗮𝘁𝗲 𝗿𝗲𝘀𝘁𝗼𝗿𝗮𝘁𝗶𝗼𝗻 — covers most advanced BLE use-cases. ➡️ 𝗧𝘆𝗽𝗲-𝘀𝗮𝗳𝗲 𝗔𝗣𝗜 — includes UUID parsing and built-in permission helpers. It’s written in TypeScript, supports both iOS (Swift) and Android (Kotlin), and even includes an Expo config plugin for easy setup. Are you using Nitro Modules in your codebase? #ReactNative #MobileDev #BluetoothLE #OpenSource #JSI #NativeModules #Expo #TypeScript #Performance #JSDev

How many of you know what "Function Flexibility" in JavaScript is? you can pass anything, it won’t even cry 😭 No wonder every JS dev looks stressed & bald 💀 I’m halfway there. 💀 #JavaScript #CodingHumor #ProgrammerHumor #WebDev #TechMeme #JSDev #Frontend #CodeNewbie #DevHumor

Trabaja desde la comodidad del Workspace en #JSConfMX 2025✨ Si te agendaron una reunión de última hora o quedó un PR pendiente de subir... Da una pausa y continua desde este espacio de trabajo que estará instalado en la sede, para que puedas continuar con tus actividades pendientes y disfrutar de la conf al mismo tiempo🤩 ¡No te quedes fuera! 🎟️ Compra tu boleto aquí: jsconf.mx/ #JSConfMX2025 #Javascript #TechCommunity #DevLife #remote #JSDev

¡Cada vez faltan pocos días para #JSConfMX!🤩 Comunidad, código, tejuino, tortas ahogadas, tacooos y todo la vibrante energía de Guadalajara en #JSConfMX✨ El equipo organizador está preparando toda experiencia para que disfrutes al máximo la conferencia de #Javascript en México🔥 ¿Ya tienes tu entrada al evento?👀 🎟️Compra tu boleto aquí: jsconf.mx/ #JSConfMX2025 #Javascript #TechCommunity #DevLife #EventosTech #JSDev

¡EL BOLETOOOO! Ajolote esponjaaa Ya puedes conseguir tu boleto para JSConfMX 2025, una vez más el evento donde la comunidad JavaScript se reúne para aprender, compartir y celebrar lo que más amamos🤝💻 Únete a 2 días de charlas, actividades, networking y una comunidad diversa que te recibe con los brazos abiertos. ¡Nos vemos en Guadalajara este 30 y 31 de octubre! 🌟🇲🇽 🎟️ Compra tu boleto aquí: jsconf.mx/ #JSConfMX2025 #Javascript #TechCommunity #DevLife #EventosTech #JSDev

#jsdev #js must have this!

Expo’s SDK 54 has just unlocked something subtle but impactful: 𝗻𝗮𝘁𝗶𝘃𝗲 𝘀𝘆𝘀𝘁𝗲𝗺 𝘁𝗮𝗯 𝗯𝗮𝗿𝘀 via the expo-router/unstable-native-tabs API. Why it matters: ➡️ You’re not just styling a View — 𝘆𝗼𝘂’𝗿𝗲 𝘁𝗮𝗽𝗽𝗶𝗻𝗴 𝗶𝗻𝘁𝗼 𝗿𝗲𝗮𝗹 𝗻𝗮𝘁𝗶𝘃𝗲 𝗨𝗜. ➡️ 𝗶𝗢𝗦 𝗴𝗲𝘁𝘀 𝘁𝗵𝗮𝘁 𝗽𝗿𝗲𝗺𝗶𝘂𝗺 “𝗟𝗶𝗾𝘂𝗶𝗱 𝗚𝗹𝗮𝘀𝘀” 𝗲𝗳𝗳𝗲𝗰𝘁 (if running on iOS 26 ), complete with automatic colour adaptation for dark/light modes. ➡️ Tap an active tab and you’ll scroll to the top—just like real apps. Want to stop that? disableScrollToTop has you covered. ➡️ Tapping again at root? It resets your navigation stack—unless you choose disablePopToTop. Code feels smoother, too: You’ll write layouts using NativeTabs.Trigger instead of Screen, embracing a component-first design. Heads up on 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗹𝗶𝗺𝗶𝘁𝗮𝘁𝗶𝗼𝗻𝘀: ➡️ 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗰𝗮𝗽𝘀 𝘆𝗼𝘂 𝗮𝘁 𝟱 𝘁𝗮𝗯𝘀—Material design constraints kick in here. ➡️ 𝗖𝘂𝘀𝘁𝗼𝗺 𝗶𝗺𝗮𝗴𝗲𝘀 𝗼𝗻 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗮𝗿𝗲𝗻’𝘁 𝘀𝘂𝗽𝗽𝗼𝗿𝘁𝗲𝗱 𝘆𝗲𝘁—stick to build-time drawables for now . ➡️ Layout measurements—like tab bar height on iPad or Vision Pro—are still a bit fuzzy, but there’s work underway. ➡️ Want nested tabs? Stick with JavaScript tabs for the time being. #ExpoRouter #NativeTabs #ExpoSDK54 #MobileUX #ReactNativeNavigation #JSDev #DevTools #iOSUI #AndroidDev

A new Image component just landed for React Native: 𝗡𝗶𝘁𝗿𝗼 𝗜𝗺𝗮𝗴𝗲. It’s built on the New Architecture with Nitro Modules and focuses on two things most RN apps struggle with: ➡️ 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 in long, image-heavy lists ➡️ 𝗙𝗹𝗲𝘅𝗶𝗯𝗹𝗲 image manipulation without extra round-trips Key ideas: ➡️ 𝗗𝗲𝗳𝗲𝗿𝗿𝗲𝗱 𝗹𝗼𝗮𝗱𝗶𝗻𝗴 — images only load when their view is actually mounted in the UI, not just when the JS side renders them. This keeps memory network usage in check while scrolling through feeds. ➡️ 𝗜𝗻-𝗺𝗲𝗺𝗼𝗿𝘆 𝗲𝗱𝗶𝘁𝘀 — Nitro Image exposes an instance-based image type, letting you crop, resize, or revert without touching the filesystem. Handy for editors or “revert to original” flows. ➡️ 𝗧𝗵𝘂𝗺𝗯𝗛𝗮𝘀𝗵 𝗽𝗹𝗮𝗰𝗲𝗵𝗼𝗹𝗱𝗲𝗿𝘀 — tiny blur previews you can store alongside your data (even inline in JSON). Nitro can encode/decode them so you always have a quick visual placeholder while the real image loads. For teams shipping feeds, chat apps, or anything image-heavy, this feels like a thoughtful improvement over the stock <Image />. Would you reach for this in your next project, or stick with <Image /> until it hits wider adoption? #ReactNative #MobileDev #OpenSource #Performance #NewArchitecture #Expo #JSDev #ImageHandling

𝗙𝗹𝗮𝘀𝗵𝗟𝗶𝘀𝘁 𝘃𝟮 𝗶𝘀 𝗵𝗲𝗿𝗲. Shopify didn’t just patch the old code — they rebuilt the list renderer from scratch to make scrolling feel effortless, even on less-than-flagship devices. At the heart of v2 is a 𝘀𝘆𝗻𝗰𝗵𝗿𝗼𝗻𝗼𝘂𝘀 𝗹𝗮𝘆𝗼𝘂𝘁 𝗲𝗻𝗴𝗶𝗻𝗲 that measures items on the spot and adjusts their positions before the screen updates. That means no guessing sizes, no layout “snap” after render, and no reliance on native-side workarounds. ➡️ 𝗭𝗲𝗿𝗼 𝘀𝗶𝘇𝗲 𝗲𝘀𝘁𝗶𝗺𝗮𝘁𝗲𝘀 — layouts are accurate from the first frame. ➡️ 𝗠𝗮𝘀𝗼𝗻𝗿𝘆 𝗺𝗮𝗱𝗲 𝗲𝗮𝘀𝘆 — pass one prop for Pinterest-style grids, and optimizeItemArrangement will keep columns balanced. ➡️ 𝗥𝘂𝗻𝘀 𝗲𝘃𝗲𝗿𝘆𝘄𝗵𝗲𝗿𝗲 — same JS-first layout logic works on iOS, Android, and web. ➡️ 𝗟𝗼𝘄𝗲𝗿 𝗖𝗣𝗨 𝗼𝘃𝗲𝗿𝗵𝗲𝗮𝗱 — smoother scroll on budget devices without draining battery. FlatList still works fine for simple feeds — but FlashList v2 is built for the complex, image-heavy, mixed-size, cross-platform lists that usually bring apps to their knees. #ReactNative #FlashList #Performance #MobileDev #JavaScript #OpenSource #ReactNativeWeb #Expo #JSDev #Frontend

𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗶𝘀 𝘀𝗹𝗼𝘄𝗹𝘆 𝗯𝗿𝗲𝗮𝗸𝗶𝗻𝗴 𝘂𝗽 𝘄𝗶𝘁𝗵 𝗖𝗼𝗰𝗼𝗮𝗣𝗼𝗱𝘀. If you’ve ever stared at a pod install progress bar wondering where your day went, this one’s for you. The RN team is working toward 𝗦𝘄𝗶𝗳𝘁 𝗣𝗮𝗰𝗸𝗮𝗴𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗿 (SPM) for iOS dependencies — and it’s a big cultural shift. ➡️ 𝗡𝗼 𝗺𝗼𝗿𝗲 𝗽𝗼𝗱 𝗶𝗻𝘀𝘁𝗮𝗹𝗹 slowing down your builds. ➡️ 𝗡𝗼 𝗥𝘂𝗯𝘆 𝘁𝗼𝗼𝗹𝗰𝗵𝗮𝗶𝗻 to babysit — fewer environment quirks and gem issues. ➡️ 𝗡𝗮𝘁𝗶𝘃𝗲 𝗫𝗰𝗼𝗱𝗲 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 with SPM, the dependency system Apple actually intended. ➡️ Tighter platform alignment means fewer third-party breakages. This won’t be a flip-the-switch moment — expect a 𝗺𝘂𝗹𝘁𝗶-𝘆𝗲𝗮𝗿 𝗺𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 where CocoaPods and SPM coexist. But the writing’s on the wall: iOS RN dev will eventually be lighter, faster, and more Apple-native. #ReactNative #iOSDev #Swift #SwiftPackageManager #MobileDev #JavaScript #OpenSource #BuildTimes #JSDev #Xcode

iOS React Native builds are about to get a whole lot faster. With 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝟬.𝟴𝟭, Expo and Meta are introducing 𝗽𝗿𝗲𝗰𝗼𝗺𝗽𝗶𝗹𝗲𝗱 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 for iOS — something Android has been enjoying for years. Instead of compiling RN from scratch every time, Xcode now just links 𝗽𝗿𝗲𝗯𝘂𝗶𝗹𝘁 𝗫𝗖𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 (binary packages created by Xcode that contain the frameworks and libraries needed to build for multiple platforms), slashing initial build times by 𝘂𝗽 𝘁𝗼 𝟭𝟬×. ➡️ Two precompiled bundles ship: one for 𝘁𝗵𝗶𝗿𝗱-𝗽𝗮𝗿𝘁𝘆 𝗱𝗲𝗽𝘀 (Folly, GLog, etc.) and one for 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗰𝗼𝗿𝗲. ➡️ Built once by Expo/Meta’s CI, covering 𝗱𝗲𝘃𝗶𝗰𝗲𝘀, 𝘀𝗶𝗺𝘂𝗹𝗮𝘁𝗼𝗿𝘀, 𝗠𝗮𝗰 𝗖𝗮𝘁𝗮𝗹𝘆𝘀𝘁, 𝘁𝘃𝗢𝗦, 𝘃𝗶𝘀𝗶𝗼𝗻𝗢𝗦. ➡️ Fetched from a 𝗠𝗮𝘃𝗲𝗻 𝗿𝗲𝗽𝗼 during install — no manual downloads. ➡️ Biggest wins for 𝗽𝘂𝗿𝗲 𝗝𝗦 𝗮𝗽𝗽𝘀, but even native-heavy builds feel the speed boost. 𝗪𝗮𝗻𝘁 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗺𝗼𝗿𝗲? Click on our profile, head to our website, and tap subscribe. This is where we really keep it together — the updates, the context, and a few bad jokes to make it go down easier. #ReactNative #iOSDev #Expo #MobileDev #JavaScript #Performance #OpenSource #Swift #BuildTimes #JSDev

What’s your biggest headache in React Native development right now? We’re digging into some new, deeper-dive educational content for mobile devs — and I want to make sure we’re targeting the real pain points you face day to day. Here are a few repeat offenders from the field reports: ➡️ 𝗡𝗮𝘃𝗶𝗴𝗮𝘁𝗶𝗼𝗻 — nested stacks inside tabs inside drawers, until your deep links are basically a horror film. ➡️ 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 — lists, animations, and gestures that run fine on your M2 Mac but stutter like a 2015 Android phone on low battery. ➡️ 𝗡𝗮𝘁𝗶𝘃𝗲 𝗠𝗼𝗱𝘂𝗹𝗲𝘀 — mismatched versions, fragile bridges, and platform quirks that feel personal. ➡️ 𝗧𝗼𝗼𝗹𝗶𝗻𝗴 — build errors, dependency deadlocks, and the joy of “works on my machine” not meaning anything. ➡️ 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 — e2e suites that are either flaky, slow, or both. ➡️ 𝗨𝗽𝗴𝗿𝗮𝗱𝗶𝗻𝗴 𝗥𝗡 𝘃𝗲𝗿𝘀𝗶𝗼𝗻𝘀 — moving RN versions without accidentally summoning a demon from node_modules. ➡️ 𝗢𝗳𝗳𝗹𝗶𝗻𝗲-𝗳𝗶𝗿𝘀𝘁 𝗮𝗽𝗽𝘀 — syncing, storage, and merge conflicts that make you nostalgic for the days of just saying “must be online.” ➡️ 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 & 𝗽𝗼𝗹𝗶𝘀𝗵 — that final 20% between “demo” and “actual production app” that takes three times longer than the first 80%. Got another one? Throw it in the comments. Let’s see what’s breaking people’s brains right now. #ReactNative #MobileDevelopment #JavaScript #TypeScript #OpenSource #MobileDev #JSDev #AppDevelopment #ReactNativeDevelopers #DevCommunity

𝗥𝗲𝗮𝗻𝗶𝗺𝗮𝘁𝗲𝗱 𝟰 𝗶𝘀 𝗳𝗶𝗻𝗮𝗹𝗹𝘆 𝘀𝘁𝗮𝗯𝗹𝗲 — and it brings something React Native devs have craved for years: 𝗖𝗦𝗦-𝘀𝘁𝘆𝗹𝗲 𝗮𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻𝘀. Instead of writing withTiming or managing SharedValue for simple transitions, you can now use familiar props like transitionDuration, transitionProperty, and animationName. It’s more declarative, more readable, and runs off the UI thread. 𝗬𝗲𝘀, 𝘁𝗵𝗮𝘁 𝗺𝗲𝗮𝗻𝘀 𝘆𝗼𝘂 𝗰𝗮𝗻 𝗮𝗻𝗶𝗺𝗮𝘁𝗲 𝘀𝘁𝘆𝗹𝗲𝘀 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 𝘄𝗼𝗿𝗸𝗹𝗲𝘁𝘀. ➡️ Use props like transform, transitionDuration, and transitionProperty directly in the style array. ➡️ Great for simple UI transitions like button toggles, modals, or element slides — with zero imperative code. ➡️ Works declaratively, so you don’t need to manage lifecycle or animation state manually. ➡️ Fully offloaded to the UI thread — smooth performance without blocking JS. ➡️ Comes with modular support: heavy gesture logic is now handled in a separate react-native-worklets package. ➡️ Huge thanks to @swmansion for continuing to push the animation story in React Native forward. Here’s the one big constraint: 𝗬𝗼𝘂𝗿 𝗮𝗽𝗽 𝗺𝘂𝘀𝘁 𝘂𝘀𝗲 𝘁𝗵𝗲 𝗡𝗲𝘄 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 — including JSI, Fabric, and TurboModules. This is part of a broader shift: simpler animations go declarative, while complex interactions remain in worklets. It’s not a replacement — it’s a clear division of responsibilities. 𝗪𝗮𝗻𝘁 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗺𝗼𝗿𝗲? Click on our profile, head to our website, and tap subscribe. This is where we really keep it together — the updates, the context, and a few bad jokes to make it go down easier. #ReactNative #Reanimated #Reanimated4 #Animation #MobileDev #JSDev #NewArchitecture #UIThread #DeclarativeUI #OpenSource #TurboModules

Heads up: 𝗥𝗲𝗮𝗻𝗶𝗺𝗮𝘁𝗲𝗱 𝟰 changes how 𝘀𝗽𝗿𝗶𝗻𝗴 𝗮𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻𝘀 behave. This isn’t a flashy new feature — but if your animations suddenly feel different, this might be why. ➡️ Reanimated 4 introduces a new 𝗱𝗲𝗳𝗮𝘂𝗹𝘁 𝘀𝗽𝗿𝗶𝗻𝗴 𝗺𝗼𝗱𝗲𝗹 based on dampingRatio and duration, replacing the physics-heavy setup from Reanimated 3. ➡️ 𝗧𝗵𝗲 𝗴𝗼𝗮𝗹: fewer janky edge cases and more predictable motion — especially for devs who don’t want to manually tune stiffness and damping. ➡️ This new model is more consistent, but it might look subtly different than what you’re used to. ➡️ You can restore the old spring behavior by using 𝗥𝗲𝗮𝗻𝗶𝗺𝗮𝘁𝗲𝗱𝟯𝗗𝗲𝗳𝗮𝘂𝗹𝘁𝗦𝗽𝗿𝗶𝗻𝗴𝗖𝗼𝗻𝗳𝗶𝗴. No need to panic — but if something feels off in your transitions after upgrading, this is a good place to check. 𝗪𝗮𝗻𝘁 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗺𝗼𝗿𝗲? Click on our profile, head to our website, and tap subscribe. This is where we really keep it together — the updates, the context, and a few bad jokes to make it go down easier. #ReactNative #Reanimated #MobileDev #AnimationTips #Reanimated4 #MotionDesign #UXDesign #OpenSource #JSDev