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Is tr46 ESM-only? Can you require() it?

An implementation of the Unicode UTS #46: Unicode IDNA Compatibility Processing

Last verified Sep 9, 2026 against tr46@6.0.0. Markdown · JSON

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

tr46 ships CommonJS only. require("tr46") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=20. import "tr46" 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("tr46") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=20.
  2. From ES modules use the default import: import tr46 from "tr46"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/tr46
Latest
6.0.0 (Sep 18, 2025)
Module format
CommonJS
Last CommonJS version
6.0.0
TypeScript types
@types/tr46
Node engines
>=20
Weekly downloads
192.6M
License
MIT

Does tr46@6.0.0 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("tr46") from a CommonJS file and import "tr46" from an ES module.

Runtimerequire("tr46")import "tr46"
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 tr46

ES modules (import)

import tr46 from "tr46";

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 tr46 = require("tr46");

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 (17 versions; the newest 17 shown).

VersionsFormatFirst published
0.0.1 – 6.0.0CommonJSJun 6, 2015

Frequently asked

Is tr46 ESM-only?

tr46@6.0.0 is a CommonJS package. tr46 ships CommonJS only. require("tr46") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=20. import "tr46" 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 tr46 with ES module syntax?

Yes. import tr46 from "tr46" 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 tr46 work in Bun?

Yes. import "tr46" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does tr46 ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/tr46".

Links

Other commonjs packages

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