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

Detect Node.JS (as opposite to browser environment). ESM modification

Last verified Sep 9, 2026 against detect-node-es@1.1.0. JSON

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

detect-node-es ships CommonJS only. require("detect-node-es") works everywhere. import "detect-node-es" 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.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

Latest
1.1.0 (Mar 18, 2021)
Module format
CommonJS
Last CommonJS version
1.1.0
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
48.8M
License
MIT

Does detect-node-es@1.1.0 actually load? Runtime test results

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

Runtimerequire("detect-node-es")import "detect-node-es"
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-node-es

ES modules (import)

import detectNodeEs from "detect-node-es";

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 detectNodeEs = require("detect-node-es");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (2 versions; the newest 2 shown).

VersionsFormatFirst published
1.0.0 – 1.1.0CommonJSJul 27, 2020

Frequently asked

Is detect-node-es ESM-only?

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

Yes. import detectNodeEs from "detect-node-es" 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-node-es work in Bun?

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

Does detect-node-es ship TypeScript types?

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

Links

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