namedDefaultExports

Reports anonymous functions and classes as the default export.

✅ This rule is included in the ts stylisticStrict presets.

Naming default exports improves codebase searchability by ensuring consistent identifier use for a module’s default export, both where it’s declared and where it’s imported.

Anonymous default exports make it harder to search for all usages of a module’s primary export, since consumers can choose any name when importing.

This rule reports anonymous functions and classes that are default exported.

export default function () {
  return "value";
}

export default () => {
  return "value";
};

export default class {
  getValue() {
    return 42;
  }
}

export default function getValue() {
  return "value";
}

const getValue = () => {
  return "value";
};
export default getValue;

export default class Container {
  getValue() {
    return 42;
  }
}

const value = 42;
export default value;

Options

This rule is not configurable.

When Not To Use It

If your project does not rely on consistent naming for default exports, or if you prefer the flexibility of allowing anonymous default exports, you can disable this rule. Some codebases may have established patterns where anonymous default exports are acceptable.

Equivalents in Other Linters

Made with ❤️‍🔥 in Boston by Josh Goldberg and contributors.

namedDefaultExports

Examples

Options

When Not To Use It

Further Reading

Equivalents in Other Linters