tsconfig.json

{
  "compilerOptions": {
    "target": "esnext" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
    "declaration": true,
    "lib": [
      "es6"
    ] /* Specify library files to be included in the compilation. */,
    "skipLibCheck": true,
    "jsx": "react-native" /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */,
    "noEmit": false /* Do not emit outputs. */,
    "outDir": "./lib",
    "isolatedModules": true /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */,
    "strict": true /* Enable all strict type-checking options. */,
    "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
  },
  "exclude": ["node_modules"]
}