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Is jest-matcher-utils ESM-only? Can you require() it?

A set of utility functions for expect and related packages

Last verified Sep 9, 2026 against jest-matcher-utils@30.5.1. Markdown · JSON

Dual (CommonJS + ESM) Dual package — require() works on every Node.js version we test; import works too

jest-matcher-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("jest-matcher-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import "jest-matcher-utils" works alongside it.

What to do

  1. Nothing to change. require("jest-matcher-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import * as jestMatcherUtils from "jest-matcher-utils" works alongside it; use named imports for what the ESM entry exports.
  2. TypeScript: types are bundled; install nothing extra.
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
Weekly downloads
65.2M
License
MIT

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

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

Runtimerequire("jest-matcher-utils")import "jest-matcher-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 1.4.0✓ works✓ works

How to import jest-matcher-utils

ES modules (import)

import * as jestMatcherUtils from "jest-matcher-utils";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

const jestMatcherUtils = require("jest-matcher-utils");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (129 versions; the newest 60 shown).

VersionsFormatFirst published
30.0.0 – 30.5.1Dual (CommonJS + ESM)Jun 10, 2025
27.0.1 – 29.7.0CommonJSMay 25, 2021

Frequently asked

Is jest-matcher-utils ESM-only?

jest-matcher-utils@30.5.1 ships CommonJS and ESM builds. jest-matcher-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("jest-matcher-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import "jest-matcher-utils" works alongside it.

Can I require jest-matcher-utils?

Yes. jest-matcher-utils ships a CommonJS entry alongside the native ESM entry. require("jest-matcher-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0.

Does jest-matcher-utils work in Bun?

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

Does jest-matcher-utils ship TypeScript types?

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

Links

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