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

This package contains shared types of Jest's packages.

Last verified Sep 9, 2026 against @jest/types@30.5.1. JSON

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

@jest/types ships CommonJS only. require("@jest/types") works everywhere. import "@jest/types" 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
30.5.1 (Sep 1, 2026)
Module format
CommonJS
Last CommonJS version
30.5.1
TypeScript types
Bundled
Node engines
^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0
License
MIT

Does @jest/types@30.5.1 actually load? Runtime test results

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

Runtimerequire("@jest/types")import "@jest/types"
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/types

ES modules (import)

import types from "@jest/types";

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 types = require("@jest/types");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (71 versions; the newest 60 shown).

VersionsFormatFirst published
25.2.5 – 30.5.1CommonJSApr 2, 2020

Frequently asked

Is @jest/types ESM-only?

@jest/types@30.5.1 is a CommonJS package. @jest/types ships CommonJS only. require("@jest/types") works everywhere. import "@jest/types" 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/types with ES module syntax?

Yes. import types from "@jest/types" 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/types work in Bun?

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

Does @jest/types ship TypeScript types?

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

Links

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