tsconfig.json

{
  "compilerOptions": {
    "alwaysStrict": true,
    "declaration": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "inlineSourceMap": true,
    "jsx": "react",
    "lib": ["dom", "scripthost", "es2015", "es2016", "es2017"],
    "module": "commonjs",
    "moduleResolution": "node",
    "newLine": "LF",
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": false,
    "outDir": "dist",
    "pretty": true,
    "strictNullChecks": true,
    "target": "es5"
  },
  "include": [
    "src"
  ],
  "exclude": [
    "node_modules"
  ]
}