tsconfig.json

{
  "compilerOptions": {
    "noEmit": true,
    "target": "es6",
    "module": "esnext",
    "noImplicitAny": false,
    "preserveConstEnums": true,
    "jsx": "react-jsx",
    "lib": ["dom", "es5", "es6", "es7", "es2017"],
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "allowJs": true,
    "declaration": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "moduleResolution": "node",
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": false,
    "strict": true,
    "strictFunctionTypes": false,
    "pretty": true,
    "removeComments": true,
    "sourceMap": true,
    "resolveJsonModule": true
  },
  "exclude": ["node_modules"],
  "include": ["src"]
}