tsconfig.json

{
    "compilerOptions": {
      "target": "es5",                          /* 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": ["DOM", "ES6", "DOM.Iterable",
              "ScriptHost"],                    /* Specify library files to be included in the compilation. */
      "declaration": true,                   /* Generates corresponding '.d.ts' file. */
      "sourceMap": true,                     /* Generates corresponding '.map' file. */
      "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'. */
    },

    "include": [
        "src/**/*"
    ]
}