tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "module": "es2015",
    "lib": ["es2017", "es7", "es6", "es5", "dom"],
    "allowJs": false,
    "jsx": "react",
    "declaration": true,
    "sourceMap": true,
    "outDir": "./dist",
    "rootDir": "src",
    "noEmit": true,
    "strict": true,
    "strictNullChecks": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "moduleResolution": "node",
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true
  },
  "exclude": [
    "node_modules"
  ]
}