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

Improved typeof detection for node.js and the browser.

Last verified Sep 9, 2026 against type-detect@4.1.0. JSON

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

type-detect ships CommonJS only. require("type-detect") works everywhere. import "type-detect" 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
4.1.0 (Jul 25, 2024)
Module format
CommonJS
Last CommonJS version
4.1.0
TypeScript types
@types/type-detect
Node engines
>=4
Weekly downloads
44.3M
License
MIT

Does type-detect@4.1.0 actually load? Runtime test results

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

Runtimerequire("type-detect")import "type-detect"
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 type-detect

ES modules (import)

import typeDetect from "type-detect";

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 typeDetect = require("type-detect");

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 – 4.1.0CommonJSAug 14, 2013

Frequently asked

Is type-detect ESM-only?

type-detect@4.1.0 is a CommonJS package. type-detect ships CommonJS only. require("type-detect") works everywhere. import "type-detect" 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 type-detect with ES module syntax?

Yes. import typeDetect from "type-detect" 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 type-detect work in Bun?

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

Does type-detect ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/type-detect".

Links

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