tsconfig.json

{
  "compilerOptions": {
    "target": "es2018", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "lib": [
      "es2017",
      "DOM"
    ], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
    "module": "esnext", /* Specify what module code is generated. */
    "rootDir": "./src", /* Specify the root folder within your source files. */
    "moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */
    "outDir": "./dist", /* Specify an output folder for all emitted files. */
    "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
    "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */
    "esModuleInterop": false, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
    "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
    "strict": true, /* Enable all strict type-checking options. */
    "skipLibCheck": true, /* Skip type checking all .d.ts files. */
    "declaration": true, /* Generates corresponding '.d.ts' file. */
    // "declarationDir": "./dist", /* Output directory for generated declaration files. */
    "declarationMap": true,
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.css",
  ]
}