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Is eslint-plugin-flowtype ESM-only? Can you require() it?

Flowtype linting rules for ESLint.

Last verified Sep 9, 2026 against eslint-plugin-flowtype@8.0.3. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

eslint-plugin-flowtype ships CommonJS only. require("eslint-plugin-flowtype") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "eslint-plugin-flowtype" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

What to do

  1. require("eslint-plugin-flowtype") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0.
  2. From ES modules use the default import: import eslintPluginFlowtype from "eslint-plugin-flowtype"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for eslint-plugin-flowtype; declare the module yourself if you need them.
Latest
8.0.3 (Oct 29, 2021)
Module format
CommonJS
Last CommonJS version
8.0.3
TypeScript types
None
Node engines
>=12.0.0
Weekly downloads
3.6M
License
BSD-3-Clause

Does eslint-plugin-flowtype@8.0.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("eslint-plugin-flowtype") from a CommonJS file and import "eslint-plugin-flowtype" from an ES module.

Runtimerequire("eslint-plugin-flowtype")import "eslint-plugin-flowtype"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4.0✓ works✓ works

How to import eslint-plugin-flowtype

ES modules (import)

import eslintPluginFlowtype from "eslint-plugin-flowtype";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const eslintPluginFlowtype = require("eslint-plugin-flowtype");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (185 versions; the newest 60 shown).

VersionsFormatFirst published
3.10.1 – 8.0.3CommonJSJun 10, 2019

Frequently asked

Is eslint-plugin-flowtype ESM-only?

eslint-plugin-flowtype@8.0.3 is a CommonJS package. eslint-plugin-flowtype ships CommonJS only. require("eslint-plugin-flowtype") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "eslint-plugin-flowtype" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import eslint-plugin-flowtype with ES module syntax?

Yes. import eslintPluginFlowtype from "eslint-plugin-flowtype" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does eslint-plugin-flowtype work in Bun?

Yes. import "eslint-plugin-flowtype" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does eslint-plugin-flowtype ship TypeScript types?

No. eslint-plugin-flowtype ships no type declarations and there is no @types package for it.

Links

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