TypeScript – How to add TS to existing React Native app?
Installation Install packages Create “tsconfig.json” file Create jest.config.js file Fix error when changing “.js” to “.tsx” Could not find a declaration file for module ‘react-redux’ […]
Software Development
React Native – How to use device sensor?
What’s device coordinate frame? react-native-sensors Detect device shake But build is error in iOS !! expo-sensors Installation Install “react-native-unimodules” installing-unimodules Install “expo-sensors” existing-appsyarn add expo-sensorsnpx […]
Xamarin – How to configure iOS App Id for AppStore deployment?
Config App Store Create new App Id Create new App from App Store connect Create new Provisioning Profile for AppStore and Development Configure Xamarin project […]
Mobile app – How to setup push notification with Firebase (1)?
Create Firebase project Download “google-services.json” file for Android Download “GoogleService-Info.plist” for iOS Config iOS push notification Create Apple Push Notifications service (APNs) key Save & […]
iOS – How to create app scanning BLE with “CoreBluetooth” framework?
How to scan & connect & read peripherals? Use protocol “CBCentralManagerDelegate“, “CBPeripheralDelegate“ How to scan BLE? How to connect a peripheral? How to read characteristics? […]
iOS – How to debug native iOS app (1)?
How to use short keys in Xcode? How to jump forward/ backward? Cmd + Ctrl + ← How to show/ hide project navigator? Cmd + […]
React Native – How to integrate React Native into existing iOS app (1)?
Reference Create new folder structure package.json .gitignore Install “react-native” dependency Install CocoaPods Edit pod file Create separate new React Native project Copy and paste content […]
Javascript – Algorithm (2)
Algorithm How to replace text inside a string? How to merge 2 objects? How to update value of a specific field? How to remove duplicates […]
React – How to use “useSwr”?
Why “useSwr” (stale-while-revalidate)? There are only two hard things in Computer Science: cache invalidation and naming things — Phil Karlton It fetches data from an […]
Javascript – All about datetime
date-fns How to convert UTC time to EAST? How to convert time string to Date instance? How to convert string to plain Javascript time object […]