canirequire

canirequire › CommonJS › object-assign

Is object-assign ESM-only? Can you require() it?

ES2015 `Object.assign()` ponyfill

Last verified Sep 9, 2026 against object-assign@4.1.1. JSON

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

object-assign ships CommonJS only. require("object-assign") works everywhere. import "object-assign" 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
4.1.1 (Jan 16, 2017)
Module format
CommonJS
Last CommonJS version
4.1.1
TypeScript types
@types/object-assign
Node engines
>=0.10.0
Weekly downloads
149.4M
License
MIT

Does object-assign@4.1.1 actually load? Runtime test results

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

Runtimerequire("object-assign")import "object-assign"
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 object-assign

ES modules (import)

import objectAssign from "object-assign";

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 objectAssign = require("object-assign");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (17 versions; the newest 17 shown).

VersionsFormatFirst published
0.1.0 – 4.1.1CommonJSFeb 2, 2014

Frequently asked

Is object-assign ESM-only?

object-assign@4.1.1 is a CommonJS package. object-assign ships CommonJS only. require("object-assign") works everywhere. import "object-assign" 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 object-assign with ES module syntax?

Yes. import objectAssign from "object-assign" 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 object-assign work in Bun?

Yes. import "object-assign" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does object-assign ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/object-assign".

Links

Other commonjs packages

Similar popularity