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canirequire › Dual (CommonJS + ESM) › @jest/expect-utils

Is @jest/expect-utils ESM-only? Can you require() it?

This module exports some utils for the `expect` function used in [Jest](https://jestjs.io/).

Last verified Sep 9, 2026 against @jest/expect-utils@30.5.1. JSON

Dual (CommonJS + ESM) Dual package — both require() and import work

@jest/expect-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("@jest/expect-utils") and import "@jest/expect-utils" both work on every supported Node.js version and in Bun.

Latest
30.5.1 (Sep 1, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
30.5.1
Native ESM since
30.0.0
TypeScript types
Bundled
Node engines
^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0
License
MIT

Does @jest/expect-utils@30.5.1 actually load? Runtime test results

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

Runtimerequire("@jest/expect-utils")import "@jest/expect-utils"
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✓ works✓ works

How to import @jest/expect-utils

ES modules (import)

import expectUtils from "@jest/expect-utils";

CommonJS (require)

const expectUtils = require("@jest/expect-utils");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (42 versions; the newest 42 shown).

VersionsFormatFirst published
30.0.0 – 30.5.1Dual (CommonJS + ESM)Jun 10, 2025
28.0.0 – 29.7.0CommonJSApr 25, 2022

Frequently asked

Is @jest/expect-utils ESM-only?

@jest/expect-utils@30.5.1 ships CommonJS and ESM builds. @jest/expect-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("@jest/expect-utils") and import "@jest/expect-utils" both work on every supported Node.js version and in Bun.

Can I require @jest/expect-utils?

Yes. @jest/expect-utils ships a CommonJS entry, so require("@jest/expect-utils") works on every Node.js version, alongside the native ESM entry for import.

Does @jest/expect-utils work in Bun?

Yes. import "@jest/expect-utils" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @jest/expect-utils ship TypeScript types?

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

Links

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