// Sketchy's journal, the whole DB// boils down to four tables and a// single sync expo-sqlite handle.const db = SQLite.openDatabaseSync('journal.db')
Behind the scenes of Sketchy, a skate companion app built on Expo SDK 55, React Native 0.83, expo-sqlite, OpenStreetMap and EAS, with the New Architecture and React Compiler turned on.
<PressableaccessibilityRole="button"accessibilityLabel="Submit form"onPress={handlePress}/>
What VoiceOver and TalkBack actually need from your app. Semantic roles, focus management, live regions, and the handful of props that make all the difference.
<button aria-label="Hide emoji">X</button><img src={src} alt="Red warning sign" /><input aria-required="true" aria-label="Name" />
Tips and tricks, tooling and best practices for web accessibility.
const intervalRef = useRef(null)const resetGame = useCallback(() => {clearInterval(intervalRef.current)}, [])
What I learned refactoring two browser games: grouping state, useReducer, stale closures, timer cleanup, render-time randomisation bugs, and replacing three intervals with one rAF loop.
const { userId } = useLocalSearchParams()useEffect(() => {getUserDetails(userId).then(setUser)}, [userId])
Expo, EAS & Expo Router: one codebase covering web, Android, and iOS, with managed workflows, OTA updates, and file-based routing.
export const resources = {en, fr,} as consttype Locale = keyof typeof resources
Get full TypeScript intellisense for your i18n translations using "as const".
// arrow: 'this' is always the classlogName = () => console.log(this.name)// function: 'this' depends on callerlogName() { console.log(this.name) }
Learn the differences between normal functions and ES6 arrow functions.
if (true) {var x = 1}console.log(x) // 1, var leaks out!
Learn about scope chain, hoisting, lexical scoping and the key differences between var, let and const.
const Btn = ({ onClick, children }) => (<button onClick={onClick}>{children}</button>)
Understanding component composition in React with a simple food orders app.
Shoot incoming particles before they collide with you.
A reaction speed game. How many positive emojis can you react to?
Match the target colour as fast as you can. Build streaks for bonus points!
Your skateboarding companion
8,000+ tricks to roll, firing lines with billions of combos, a roguelike climb mode, 30,000 spots on the map and a new trick on your lock screen every morning. Built for skaters, by a skater.
Skateboarding lessons with accredited instructors across Northern Ireland.
Roll for your next trick. A skate dice web app.
Your corner between rounds. Timers, combo generators, and session tracking for boxing training.