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Expo Development

⬢ 層級 1技術
中等
薪資影響
1 個月
學習時長
容易
難度
6
職業
一覽

Expo is a managed platform for React Native development. Instead of managing native builds, CocoaPods, Gradle, Expo handles it. You write React/TypeScript, run `expo publish`, and your app reaches iOS + Android from a single codebase. Perfect for MVPs, startups, and teams without native engineers. Senior Expo developers earn $120-160k because they know when to eject to bare React Native and how to scale beyond Expo's limitations. Mastery takes 2-3 weeks. Expo is faster to shipping than React Native bare, but has less control.

什麼是 Expo Development

Expo is a managed platform for developing React Native apps without dealing with native build systems (Xcode, Android Studio, CocoaPods, Gradle). You write React/TypeScript, and Expo's build service (EAS Build) generates production APKs and IPAs. Expo Go is a development app that lets you test your app on a physical phone instantly (no build needed). Expo SDK includes 50+ modules: Camera, Notifications, Maps, File system, Payments, etc. These cover 90% of app needs. For the other 10% (specialized hardware, custom native code), you eject to bare React Native.

🔧 工具與生態
Expo CLIReact / React NativeTypeScriptExpo SDK (Camera, Notifications, Maps, etc)Expo Go app (testing)EAS Build (native building service)EAS Submit (app store submission)Expo Router (navigation)

💰 各地區薪資

地區初級中級高級
USA$70,000$115,000$170,000
UK£45,000£73,000£110,000
EU€50,000€82,000€125,000
CANADACA$75,000CA$125,000CA$190,000

❓ 常見問題

When should I use Expo vs. bare React Native?
Expo for: startups, MVPs, teams without native engineers, need to ship fast. Bare React Native for: complex native modules, performance-critical apps, need full control. Most start with Expo, eject if needed.
Can I use native modules with Expo?
Expo SDK covers 90% of needs (Camera, Maps, Notifications, etc.). If you need a specific native module not in Expo SDK, you eject to bare React Native.
What's the difference between Expo Go and EAS Build?
Expo Go: development app for testing. EAS Build: managed build service that creates production APKs/IPAs. Expo Go = free testing, EAS Build = $0-400/month depending on builds.
How long does it take to publish an app to the App Store?
EAS Submit automates submission. iOS: 1-3 days for Apple review. Android: instant publish to Google Play. Total: 1-3 days to both stores.
Can I share my Expo app without app stores?
Yes, via Expo Go (camera scan QR code). Or EAS Update for instant updates to production. No need to submit to App Store for every change.

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