tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es6",
    "noImplicitAny": true,
    "moduleResolution": "node",
    "strictNullChecks": true,
    "sourceMap": false,
    "outDir": "dist",
    "declaration": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [ "dom", "esnext" ]
  },
  "include": [
    "src/**/*"
  ]
}