tsconfig.json

{
  "compilerOptions": {
    "lib": ["es6", "dom", "dom.iterable", "esnext"],
    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
    "allowJs": true /* Allow javascript files to be compiled. */,
    "sourceMap": true /* Generates corresponding '.map' file. */,
    "outDir": "dist" /* Redirect output structure to the directory. */,
    /* Strict Type-Checking Options */
    "strict": true /* Enable all strict type-checking options. */,
    "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "noImplicitAny": false,
    "rootDir": "./"
  },
  "lib": ["es2015"],
  "include": ["./**/*"],
}