canirequire › Dual (CommonJS + ESM) › jest-runtime
Is jest-runtime ESM-only? Can you require() it?
Last verified Sep 9, 2026 against jest-runtime@30.5.1. JSON
Dual (CommonJS + ESM) Dual package — both require() and import work
jest-runtime publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("jest-runtime") and import "jest-runtime" both work on every supported Node.js version and in Bun.
Does jest-runtime@30.5.1 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("jest-runtime") from a CommonJS file and import "jest-runtime" from an ES module.
| Runtime | require("jest-runtime") | import "jest-runtime" |
|---|---|---|
| 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-runtime
ES modules (import)
import jestRuntime from "jest-runtime";CommonJS (require)
const jestRuntime = require("jest-runtime");Module format by version
Derived from the type, main and exports fields of every stable release on npm (188 versions; the newest 60 shown).
| Versions | Format | First published |
|---|---|---|
| 30.0.0 – 30.5.1 | Dual (CommonJS + ESM) | Jun 10, 2025 |
| 27.2.4 – 29.7.0 | CommonJS | Sep 29, 2021 |
Frequently asked
Is jest-runtime ESM-only?
jest-runtime@30.5.1 ships CommonJS and ESM builds. jest-runtime publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("jest-runtime") and import "jest-runtime" both work on every supported Node.js version and in Bun.
Can I require jest-runtime?
Yes. jest-runtime ships a CommonJS entry, so require("jest-runtime") works on every Node.js version, alongside the native ESM entry for import.
Does jest-runtime work in Bun?
Yes. import "jest-runtime" loaded successfully in Bun 1.4 on Sep 9, 2026.
Does jest-runtime ship TypeScript types?
Yes. jest-runtime bundles its own type declarations; no @types package is needed.
Links
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