refactor: typescript

tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "es2017",
+    "lib": ["es6"],
+    "jsx": "react-native",
+    "strict": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "strictPropertyInitialization": true,
+    "noImplicitThis": true,
+    "alwaysStrict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "forceConsistentCasingInFileNames": true,
+    "moduleResolution": "node",
+    "allowSyntheticDefaultImports": true,
+    "types": ["react", "react-native"]
+  },
+  "files": [
+    "src/index.d.ts"
+  ],
+  "include": ["src/index.ts"]
+}