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

Eslint rules for mocha.

Last verified Sep 9, 2026 against eslint-plugin-mocha@12.0.2. JSON

ESM-only ESM-only since 11.0.0 — last CommonJS version is 10.5.0

eslint-plugin-mocha dropped its CommonJS build in 11.0.0 (April 2025). The last version you can require() on every Node.js version, including 18 and older, is 10.5.0, published Jul 29, 2024.

require("eslint-plugin-mocha") failed in our probe on Node.js 20+ as well. See the runtime matrix below for the exact error.

eslint-plugin-mocha@12.0.2 declares engines ">=22.0.0", so Node.js 18, 20 are outside its supported range regardless of module format.

Latest
12.0.2 (Aug 4, 2026)
Module format
ESM-only
Last CommonJS version
10.5.0
ESM-only since
11.0.0 (Apr 26, 2025)
TypeScript types
Bundled
Node engines
>=22.0.0
Weekly downloads
1.6M
License
MIT

Does eslint-plugin-mocha@12.0.2 actually load? Runtime test results

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

Runtimerequire("eslint-plugin-mocha")import "eslint-plugin-mocha"
Node.js 18✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✓ works
Node.js 20✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✓ works
Node.js 22✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✓ works
Node.js 24✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✓ works
Node.js 26✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✓ works
Bun 1.4✗ failserror: Cannot find package 'eslint-plugin-mocha' from '/Users/boat/Projects/top-seo/data/probe-work/eslint-plugin-mocha/req.cjs'✓ works

How to import eslint-plugin-mocha

ES modules (import)

import eslintPluginMocha from "eslint-plugin-mocha";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const eslintPluginMocha = require("eslint-plugin-mocha");

// Any Node.js version:
const eslintPluginMocha = await import("eslint-plugin-mocha");

// Or pin the last CommonJS release:
// npm install eslint-plugin-mocha@10.5.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm (70 versions; the newest 60 shown).

VersionsFormatFirst published
11.0.0 – 12.0.2ESM-onlyApr 26, 2025
1.1.0 – 10.5.0CommonJSNov 13, 2015

Frequently asked

Is eslint-plugin-mocha ESM-only?

eslint-plugin-mocha@12.0.2 is ESM-only. eslint-plugin-mocha dropped its CommonJS build in 11.0.0 (April 2025). The last version you can require() on every Node.js version, including 18 and older, is 10.5.0, published Jul 29, 2024.

Which version of eslint-plugin-mocha still supports CommonJS / require()?

10.5.0 is the last version of eslint-plugin-mocha with a CommonJS build. Install it with "npm install eslint-plugin-mocha@10.5.0". Every version from 11.0.0 on is ESM-only.

How do I use eslint-plugin-mocha from a CommonJS file?

Use a dynamic import: const mod = await import("eslint-plugin-mocha"). On Node.js 20.19+, 22.12+ and newer, a plain require("eslint-plugin-mocha") also works for ESM packages that do not use top-level await. Alternatively pin eslint-plugin-mocha@10.5.0.

Does eslint-plugin-mocha work in Bun?

Yes. import "eslint-plugin-mocha" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does eslint-plugin-mocha ship TypeScript types?

Yes. eslint-plugin-mocha bundles its own type declarations; no @types package is needed.

Links

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