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Is enzyme ESM-only? Can you require() it?

JavaScript Testing utilities for React

Last verified Sep 9, 2026 against enzyme@3.11.0. JSON

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

enzyme ships CommonJS only. require("enzyme") works everywhere. import "enzyme" 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.

Latest
3.11.0 (Dec 20, 2019)
Module format
CommonJS
Last CommonJS version
3.11.0
TypeScript types
@types/enzyme
Node engines
not declared
Weekly downloads
1.2M
License
MIT

Does enzyme@3.11.0 actually load? Runtime test results

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

Runtimerequire("enzyme")import "enzyme"
Node.js 18✗ failsReferenceError✗ failsReferenceError
Node.js 20✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✗ failsERR_PACKAGE_PATH_NOT_EXPORTED
Node.js 22✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✗ failsERR_PACKAGE_PATH_NOT_EXPORTED
Node.js 24✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✗ failsERR_PACKAGE_PATH_NOT_EXPORTED
Node.js 26✗ failsERR_PACKAGE_PATH_NOT_EXPORTED✗ failsERR_PACKAGE_PATH_NOT_EXPORTED
Bun 1.4✗ failserror: Cannot find module 'cheerio/lib/utils' from '/Users/boat/Projects/top-seo/data/probe-work/enzyme/node_modules/enzyme/build/Utils.js'✗ failserror: Cannot find module 'cheerio/lib/utils' from '/Users/boat/Projects/top-seo/data/probe-work/enzyme/node_modules/enzyme/build/Utils.js'

A failing require() on a CommonJS package usually means the package needs a browser/DOM global, a peer dependency, or a native binary that is not available in a bare Node.js process.

How to import enzyme

ES modules (import)

import enzyme from "enzyme";

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 enzyme = require("enzyme");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (45 versions; the newest 45 shown).

VersionsFormatFirst published
1.0.0 – 3.11.0CommonJSDec 6, 2015

Frequently asked

Is enzyme ESM-only?

enzyme@3.11.0 is a CommonJS package. enzyme ships CommonJS only. require("enzyme") works everywhere. import "enzyme" 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 enzyme with ES module syntax?

Yes. import enzyme from "enzyme" 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 enzyme work in Bun?

Importing enzyme failed in Bun 1.4 on Sep 9, 2026: error: Cannot find module 'cheerio/lib/utils' from '/Users/boat/Projects/top-seo/data/probe-work/enzyme/node_modules/enzyme/build/Utils.js'

Does enzyme ship TypeScript types?

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

Links

Other commonjs packages

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