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Is own-keys ESM-only? Can you require() it?

Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible

Last verified Sep 9, 2026 against own-keys@1.0.2. Markdown · JSON

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

own-keys ships CommonJS only. require("own-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "own-keys" 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.

What to do

  1. require("own-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
  2. From ES modules use the default import: import ownKeys from "own-keys"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: types are bundled; install nothing extra.
Latest
1.0.2 (Jul 21, 2026)
Module format
CommonJS
Last CommonJS version
1.0.2
TypeScript types
Bundled
Node engines
>= 0.4
Weekly downloads
67.6M
License
MIT

Does own-keys@1.0.2 actually load? Runtime test results

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

Runtimerequire("own-keys")import "own-keys"
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 own-keys

ES modules (import)

import ownKeys from "own-keys";

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 ownKeys = require("own-keys");

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 (3 versions; the newest 3 shown).

VersionsFormatFirst published
1.0.0 – 1.0.2CommonJSDec 29, 2024

Frequently asked

Is own-keys ESM-only?

own-keys@1.0.2 is a CommonJS package. own-keys ships CommonJS only. require("own-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "own-keys" 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 own-keys with ES module syntax?

Yes. import ownKeys from "own-keys" 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 own-keys work in Bun?

Yes. import "own-keys" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does own-keys ship TypeScript types?

Yes. own-keys bundles its own type declarations; no @types package is needed.

Links

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