tsconfig.json

{
  "compilerOptions": {
    "target": "ES2018",
    "module": "commonjs",
    "lib": [
      "es2018"
    ],
    "declaration": true,
    "rootDir": "./src",
    "outDir": "./build",
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": false,
    "inlineSourceMap": true,
    "inlineSources": true,
    "experimentalDecorators": true,
    "strictPropertyInitialization": false,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "moduleResolution": "node",
    "typeRoots": [
      "./node_modules/@types"
    ]
  },
  "exclude": ["src/tests"],
  "include": [
    "src/**/*.ts"
  ],
  "rules": {
    "consistent-return": "off",
    "no-console": 0,
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ]
  },
}