feat: add typescript example from new expo init

with-typescript/.expo-shared/assets.json

@@ -0,0 +1,4 @@
+{
+  "f9155ac790fd02fadcdeca367b02581c04a353aa6d5aa84409a59f6804c87acd": true,
+  "89ed26367cdb9b771858e026f2eb95bfdb90e5ae943e716575327ec325f39c44": true
+}

with-typescript/App.tsx

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+import React from 'react';
+import { StyleSheet, Text, View } from 'react-native';
+
+export default function App() {
+  return (
+    <View style={styles.container}>
+      <Text>Open up App.tsx to start working on your app!</Text>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#fff',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+});

with-typescript/README.md

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+# [TypeScript Example](https://www.typescriptlang.org/)
+
+TypeScript is a superset of JavaScript which gives you static types and powerful tooling in Visual Studio Code including autocompletion and useful inline warnings for type errors.
+
+### ⚽️ Getting started with TypeScript
+
+#### Creating a new project**
+
+- Install the CLI: `npm i -g expo-cli`
+- Create a project: `expo init --template expo-template-blank-typescript`
+- `cd` into the project
+
+### Adding TypeScript to existing projects
+
+- Copy the `tsconfig.json` from this repo, or new typescript template
+- Add typescript dependencies: `yarn add --dev @types/react @types/react-native typescript`
+- Rename files tpo TypeScript, `.tsx` for React components and `.ts` for plain typescript files
+
+## 👀 More info
+
+- [Expo TypeScript guide](https://docs.expo.io/versions/latest/guides/typescript/)

with-typescript/app.json

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+{
+  "expo": {
+    "name": "with-typescript",
+    "slug": "with-typescript",
+    "privacy": "public",
+    "sdkVersion": "36.0.0",
+    "platforms": [
+      "ios",
+      "android",
+      "web"
+    ],
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "splash": {
+      "image": "./assets/splash.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "updates": {
+      "fallbackToCacheTimeout": 0
+    },
+    "assetBundlePatterns": [
+      "**/*"
+    ],
+    "ios": {
+      "supportsTablet": true
+    }
+  }
+}

with-typescript/babel.config.js

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+module.exports = function(api) {
+  api.cache(true);
+  return {
+    presets: ['babel-preset-expo'],
+  };
+};

with-typescript/package.json

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+{
+  "main": "node_modules/expo/AppEntry.js",
+  "scripts": {
+    "start": "expo start",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web",
+    "eject": "expo eject"
+  },
+  "dependencies": {
+    "expo": "~36.0.0",
+    "react": "~16.9.0",
+    "react-dom": "~16.9.0",
+    "react-native": "https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz",
+    "react-native-screens": "2.0.0-alpha.12",
+    "react-native-web": "~0.11.7"
+  },
+  "devDependencies": {
+    "@types/react": "~16.9.0",
+    "@types/react-native": "~0.60.23",
+    "@babel/core": "^7.0.0",
+    "babel-preset-expo": "~8.0.0",
+    "typescript": "~3.6.3"
+  },
+  "private": true
+}

with-typescript/tsconfig.json

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+{
+  "compilerOptions": {
+    "allowSyntheticDefaultImports": true,
+    "jsx": "react-native",
+    "lib": ["dom", "esnext"],
+    "moduleResolution": "node",
+    "noEmit": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true
+  }
+}