tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es6",
    "outDir": "dist",
    "lib": ["es6"],
    "declaration": true,
    "sourceMap": true,
    "rootDir": "src",
    /* Strict Type-Checking Option */
    "strict": true /* enable all strict type-checking options */,
    /* Additional Checks */
    "noUnusedLocals": true /* Report errors on unused locals. */,
    // "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
    // "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
    // "noUnusedParameters": true,  /* Report errors on unused parameters. */
    "typeRoots": ["node_modules/@types"]
  },
  "include": ["./src/**/*"],
  "exclude": [
    "node_modules/**/*"
    //, "test"
  ]
}