tsconfig.json

{
  "compilerOptions": {
    "jsx": "preserve",
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "alwaysStrict": true,
    "checkJs": true,
    "downlevelIteration": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "isolatedModules": true,
    "keyofStringsOnly": false,
    "lib": [
      "dom.iterable",
      "esnext"
    ],
    "module": "CommonJS",
    "moduleResolution": "node",
    "noEmit": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "importsNotUsedAsValues": "error",
    "target": "es6",
    "types": [
      "node",
      "jest"
    ]
  },
  "exclude": [
    "node_modules"
  ],
  "include": [
    "**/*.ts",
    "**/*.js",
    "**/*.json"
  ]
}