tsconfig.json

{
  "compilerOptions": {
    "target": "es2016", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "lib": [
      "DOM",
      "es6",
      "ES2015",
      "ES2019"
    ],
    "module": "esnext", /* Specify the root folder within your source files. */
    "moduleResolution": "node",
    "types": [
      "jest"
    ],
    "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. */
    "strict": true, /* Enable all strict type-checking options. */
    "noImplicitAny": false, /* Enable error reporting for expressions and declarations with an implied 'any' type. */
    "skipLibCheck": true, /* Skip type checking all .d.ts files. */
    "resolveJsonModule": true
  }
}