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

Run Mocha tests

Last verified Sep 9, 2026 against gulp-mocha@10.0.1. JSON

ESM-only ESM-only since 10.0.0 — last CommonJS version is 9.0.0

gulp-mocha dropped its CommonJS build in 10.0.0 (November 2023). The last version you can require() on every Node.js version, including 18 and older, is 9.0.0, published Oct 26, 2023.

On Node.js 20.19+, 22.12+ and every newer release, require("gulp-mocha") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

Latest
10.0.1 (Apr 19, 2024)
Module format
ESM-only
Last CommonJS version
9.0.0
ESM-only since
10.0.0 (Nov 3, 2023)
TypeScript types
@types/gulp-mocha
Node engines
>=18
Weekly downloads
181K
License
MIT

Does gulp-mocha@10.0.1 actually load? Runtime test results

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

Runtimerequire("gulp-mocha")import "gulp-mocha"
Node.js 18✗ failsERR_REQUIRE_ESM✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4✓ works✓ works

How to import gulp-mocha

ES modules (import)

import gulpMocha from "gulp-mocha";

CommonJS (require)

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

// Any Node.js version:
const gulpMocha = await import("gulp-mocha");

// Or pin the last CommonJS release:
// npm install gulp-mocha@9.0.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm (39 versions; the newest 39 shown).

VersionsFormatFirst published
10.0.0 – 10.0.1ESM-onlyNov 3, 2023
0.1.0 – 9.0.0CommonJSDec 14, 2013

Frequently asked

Is gulp-mocha ESM-only?

gulp-mocha@10.0.1 is ESM-only. gulp-mocha dropped its CommonJS build in 10.0.0 (November 2023). The last version you can require() on every Node.js version, including 18 and older, is 9.0.0, published Oct 26, 2023.

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

9.0.0 is the last version of gulp-mocha with a CommonJS build. Install it with "npm install gulp-mocha@9.0.0". Every version from 10.0.0 on is ESM-only.

How do I use gulp-mocha from a CommonJS file?

Use a dynamic import: const mod = await import("gulp-mocha"). On Node.js 20.19+, 22.12+ and newer, a plain require("gulp-mocha") also works for ESM packages that do not use top-level await. Alternatively pin gulp-mocha@9.0.0.

Does gulp-mocha work in Bun?

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

Does gulp-mocha ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/gulp-mocha".

Links

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