tsconfig.esm.json

{
    "compilerOptions": {
        "target": "ES2017" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */,
        "module": "ES6",
        "moduleResolution": "node",
        "lib": [
            "ES2020",
            "DOM",
            "DOM.Iterable"
        ] /* 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,
        "resolveJsonModule": true /* Generates corresponding '.map' file. */,
        "outDir": "./lib/esm" /* 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'. */,
        "skipLibCheck": true /* Skip type checking of declaration files. */,
        "forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
    },
    "include": ["src"],
    "exclude": ["universities.json"]
}