tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "lib": [
      "es6",
      "es2016"
    ],
    "target": "es5",
    "noImplicitAny": false,
    "sourceMap": false,
    "declaration": true,
    "rootDir": "./src",
    "outDir": "./build",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true
  },
  "exclude": [
    "./examples",
    "./node_modules",
    "./test",
    "./build"
  ]
}