tsconfig.json

{
    "compilerOptions": {
      /* Basic Options */
      "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
      "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
      "lib": [
          "es2017",
          "dom"
      ],                    /* Concatenate and emit output to single file. */
      "outDir": "./dist",                        /* Redirect output structure to the directory. */
  
      /* Strict Type-Checking Options */
      "strict": false,                           /* Enable all strict type-checking options. */
      "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
  
      /* Module Resolution Options */
      "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
      "typeRoots": [
          "node_modules/@types"
      ],                       /* List of folders to include type definitions from. */
      "types": [
          "node"
      ],                           /* Type declaration files to be included in compilation. */
      "esModuleInterop": false,                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
  
      /* Experimental Options */
      "experimentalDecorators": true        /* Enables experimental support for ES7 decorators. */
    }
  }