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Is es-shim-unscopables ESM-only? Can you require() it?

Helper package to shim a method into `Array.prototype[Symbol.unscopables]`

Last verified Sep 9, 2026 against es-shim-unscopables@1.1.0. JSON

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

es-shim-unscopables ships CommonJS only. require("es-shim-unscopables") works everywhere. import "es-shim-unscopables" 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
1.1.0 (Feb 12, 2025)
Module format
CommonJS
Last CommonJS version
1.1.0
TypeScript types
Bundled
Node engines
>= 0.4
Weekly downloads
50.1M
License
MIT

Does es-shim-unscopables@1.1.0 actually load? Runtime test results

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

Runtimerequire("es-shim-unscopables")import "es-shim-unscopables"
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 es-shim-unscopables

ES modules (import)

import esShimUnscopables from "es-shim-unscopables";

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 esShimUnscopables = require("es-shim-unscopables");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (4 versions; the newest 4 shown).

VersionsFormatFirst published
1.0.0 – 1.1.0CommonJSApr 11, 2022

Frequently asked

Is es-shim-unscopables ESM-only?

es-shim-unscopables@1.1.0 is a CommonJS package. es-shim-unscopables ships CommonJS only. require("es-shim-unscopables") works everywhere. import "es-shim-unscopables" 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 es-shim-unscopables with ES module syntax?

Yes. import esShimUnscopables from "es-shim-unscopables" 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 es-shim-unscopables work in Bun?

Yes. import "es-shim-unscopables" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does es-shim-unscopables ship TypeScript types?

Yes. es-shim-unscopables bundles its own type declarations; no @types package is needed.

Links

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