tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es6",
    "outDir": "out",
    "lib": ["es6"],
    "sourceMap": false,
    "rootDir": "src",
    "strict": true /* enable all strict type-checking options */,
    "strictNullChecks": false,
    "removeComments": true,
    "skipLibCheck": true,
    /* Additional Checks */
     "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. */
    "importHelpers": true
  },
  "exclude": [
    "node_modules",
    ".vscode",
    ".github",
    ".idea"
  ]
}