tsconfig.json

{
  "compilerOptions": {
    "target": "es5", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
    "module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "outDir": "./dist", /* Redirect output structure to the directory. */
    "strict": true, /* Enable all strict type-checking options. */
    "esModuleInterop": true, /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "sourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
    "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
    "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
  },
  "include": [
      "./src/**/*.ts",
      "./src/*.json"
  ],
  "exclude": [
      "node_modules"
  ]
}