tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', 'ES2021', or 'ESNEXT'. */
    "module": "commonjs",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    "declaration": true,                            /* Generates corresponding '.d.ts' file. */
    "declarationMap": true,                         /* Generates a sourcemap for each corresponding '.d.ts' file. */
    "sourceMap": true,                              /* Generates corresponding '.map' file. */
    "outDir": "./build",                              /* Redirect output structure to the directory. */
    "strict": true,                                 /* Enable all strict type-checking options. */
    "importHelpers": true,
    "allowSyntheticDefaultImports": true,        /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
    "esModuleInterop": true,                        /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "forceConsistentCasingInFileNames": true        /* Disallow inconsistently-cased references to the same file. */
  },
  "exclude": ["./example"]
}