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Is @babel/plugin-transform-parameters ESM-only? Can you require() it?

Compile ES2015 default and rest parameters to ES5

Last verified Sep 9, 2026 against @babel/plugin-transform-parameters@8.0.1. JSON

ESM-only ESM-only since 8.0.0 — last CommonJS version is 7.29.7

@babel/plugin-transform-parameters dropped its CommonJS build in 8.0.0 (June 2026). The last version you can require() on every Node.js version, including 18 and older, is 7.29.7, published May 25, 2026.

On Node.js 20.19+, 22.12+ and every newer release, require("@babel/plugin-transform-parameters") works anyway: Node can load synchronous ES modules through require(). Verified on Node 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

@babel/plugin-transform-parameters@8.0.1 declares engines "^22.18.0 || >=24.11.0", so Node.js 18, 20 are outside its supported range regardless of module format.

Latest
8.0.1 (Jun 17, 2026)
Module format
ESM-only
Last CommonJS version
7.29.7
ESM-only since
8.0.0 (Jun 16, 2026)
TypeScript types
Bundled
Node engines
^22.18.0 || >=24.11.0
License
MIT

Does @babel/plugin-transform-parameters@8.0.1 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("@babel/plugin-transform-parameters") from a CommonJS file and import "@babel/plugin-transform-parameters" from an ES module.

Runtimerequire("@babel/plugin-transform-parameters")import "@babel/plugin-transform-parameters"
Node.js 18✗ failsERR_REQUIRE_ESM✗ failsSyntaxError
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 @babel/plugin-transform-parameters

ES modules (import)

import pluginTransformParameters from "@babel/plugin-transform-parameters";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const pluginTransformParameters = require("@babel/plugin-transform-parameters");

// Any Node.js version:
const pluginTransformParameters = await import("@babel/plugin-transform-parameters");

// Or pin the last CommonJS release:
// npm install @babel/plugin-transform-parameters@7.29.7

Module format by version

Derived from the type, main and exports fields of every stable release on npm (53 versions; the newest 53 shown).

VersionsFormatFirst published
8.0.0 – 8.0.1ESM-onlyJun 16, 2026
7.0.0 – 7.29.7CommonJSAug 27, 2018

Frequently asked

Is @babel/plugin-transform-parameters ESM-only?

@babel/plugin-transform-parameters@8.0.1 is ESM-only. @babel/plugin-transform-parameters dropped its CommonJS build in 8.0.0 (June 2026). The last version you can require() on every Node.js version, including 18 and older, is 7.29.7, published May 25, 2026.

Which version of @babel/plugin-transform-parameters still supports CommonJS / require()?

7.29.7 is the last version of @babel/plugin-transform-parameters with a CommonJS build. Install it with "npm install @babel/plugin-transform-parameters@7.29.7". Every version from 8.0.0 on is ESM-only.

How do I use @babel/plugin-transform-parameters from a CommonJS file?

Use a dynamic import: const mod = await import("@babel/plugin-transform-parameters"). On Node.js 20.19+, 22.12+ and newer, a plain require("@babel/plugin-transform-parameters") also works for ESM packages that do not use top-level await. Alternatively pin @babel/plugin-transform-parameters@7.29.7.

Does @babel/plugin-transform-parameters work in Bun?

Yes. import "@babel/plugin-transform-parameters" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @babel/plugin-transform-parameters ship TypeScript types?

Yes. @babel/plugin-transform-parameters bundles its own type declarations; no @types package is needed.

Links

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