tsconfig.json

{
  "compilerOptions": {
    "allowJs": false,
    "allowSyntheticDefaultImports": true,
    "baseUrl": ".",
    "composite": true,
    "declaration": true,
    "declarationMap": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true,
    "jsx": "react",
    "lib": ["dom", "es2017"],
    "module": "CommonJS",
    "moduleResolution": "node",
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "outDir": "dist",
    "preserveConstEnums": true,
    "preserveWatchOutput": true,
    "removeComments": false,
    "resolveJsonModule": true,
    "rootDir": "src",
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "strictNullChecks": true,
    "target": "ES6"
  },
  "include": ["src"],
  "exclude": ["node_modules"]
}