tsconfig.json

{
  "compilerOptions": {
    "target": "es2015", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
    "module": "esnext", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    "lib": [
      "dom",
      "DOM.Iterable",
      "ESNext"
    ], /* Specify library files to be included in the compilation. */
    "allowJs": true, /* Allow javascript files to be compiled. */
    // "checkJs": true,                       /* Report errors in .js files. */
    "jsx": "react", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    "declaration": true, /* Generates corresponding '.d.ts' file. */
    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
    // "outFile": "./",                       /* Concatenate and emit output to single file. */
    "outDir": "./esm", /* Redirect output structure to the directory. */
    "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
    /* Strict Type-Checking Options */
    "strict": true, /* Enable all strict type-checking options. */
    "strictNullChecks": false, /* Enable strict null checks. */
    "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "baseUrl": ".", /* Base directory to resolve non-absolute module names. */
    "paths": {
      "@/*": [
        "src/*"
      ],
    },
    /* Type declaration files to be included in compilation. */
    "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'. */
    "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
    "skipLibCheck": true, /* Skip type checking of declaration files. */
    "forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
  },
  "include": [
    "src"
  ]
}