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Is detect-libc ESM-only? Can you require() it?

Node.js module to detect the C standard library (libc) implementation family and version

Last verified Sep 9, 2026 against detect-libc@2.1.2. JSON

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

detect-libc ships CommonJS only. require("detect-libc") works everywhere. import "detect-libc" 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
2.1.2 (Oct 5, 2025)
Module format
CommonJS
Last CommonJS version
2.1.2
TypeScript types
Bundled
Node engines
>=8
Weekly downloads
175.0M
License
Apache-2.0

Does detect-libc@2.1.2 actually load? Runtime test results

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

Runtimerequire("detect-libc")import "detect-libc"
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 detect-libc

ES modules (import)

import detectLibc from "detect-libc";

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 detectLibc = require("detect-libc");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (22 versions; the newest 22 shown).

VersionsFormatFirst published
0.0.1 – 2.1.2CommonJSJul 3, 2017

Frequently asked

Is detect-libc ESM-only?

detect-libc@2.1.2 is a CommonJS package. detect-libc ships CommonJS only. require("detect-libc") works everywhere. import "detect-libc" 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 detect-libc with ES module syntax?

Yes. import detectLibc from "detect-libc" 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 detect-libc work in Bun?

Yes. import "detect-libc" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does detect-libc ship TypeScript types?

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

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