tsconfig.json

{
  "compilerOptions": {
    "target": "es5",                                     /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "module": "commonjs",                                /* Specify what module code is generated. */
    "jsx": "react",

    "esModuleInterop": true,                             /* 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. */

    /* Type Checking */
    "strict": true,                                      /* Enable all strict type-checking options. */
    "noImplicitAny": true,                               /* Enable error reporting for expressions and declarations with an implied 'any' type. */
    "noImplicitReturns": true,
    "strictNullChecks": true,                            /* When type checking, take into account 'null' and 'undefined'. */
    "skipLibCheck": true,
  },
  "exclude": [
    "node_modules"
  ]
}