# Is jest-extended ESM-only? Can you require() it?

> jest-extended@7.0.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Additional Jest matchers

Last verified Sep 9, 2026 against jest-extended@7.0.0.

jest-extended ships CommonJS only. require("jest-extended") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.9.0 || ^22.11.0 || ^24.11.0 || >=25.0.0. import "jest-extended" 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("jest-extended") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.9.0 || ^22.11.0 || ^24.11.0 || >=25.0.0.
2. From ES modules use the default import: import jestExtended from "jest-extended"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 7.0.0 (Nov 5, 2025)
- Module format: CommonJS
- Last CommonJS version: 7.0.0
- TypeScript types: bundled
- Node engines: ^20.9.0 || ^22.11.0 || ^24.11.0 || >=25.0.0
- Weekly downloads: 1.6M
- License: MIT

## Runtime test results for jest-extended@7.0.0

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

| Runtime | require("jest-extended") | import "jest-extended" |
|---|---|---|
| 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 jest-extended

ES modules:

```js
import jestExtended from "jest-extended";
```

CommonJS:

```js
const jestExtended = require("jest-extended");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (46 versions; the newest 46 shown).

| Versions | Format | First published |
|---|---|---|
| 0.0.1 – 7.0.0 | CommonJS | Oct 20, 2017 |

## Frequently asked

**Is jest-extended ESM-only?**

jest-extended@7.0.0 is a CommonJS package. jest-extended ships CommonJS only. require("jest-extended") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.9.0 || ^22.11.0 || ^24.11.0 || >=25.0.0. import "jest-extended" 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 jest-extended with ES module syntax?**

Yes. import jestExtended from "jest-extended" 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 jest-extended work in Bun?**

Yes. import "jest-extended" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does jest-extended ship TypeScript types?**

Yes. jest-extended bundles its own type declarations; no @types package is needed.

## Links

- [jest-extended on npm](https://www.npmjs.com/package/jest-extended)
- [Source repository](https://github.com/jest-community/jest-extended)
- [HTML version](https://canirequire.com/package/jest-extended/)
- [JSON version](https://canirequire.com/package/jest-extended.json)

---

For scripts and AI agents: any package is at https://canirequire.com/package/<name>/index.md (Markdown) or https://canirequire.com/package/<name>.json (JSON); the site index is https://canirequire.com/llms.txt. Fetch the URL directly; no search needed.