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Is char-regex ESM-only? Can you require() it?

A regex to match any full character, considering weird character ranges.

Last verified Sep 9, 2026 against char-regex@2.0.2. JSON

ESM-only ESM-only since 2.0.0 — last CommonJS version is 1.0.2

char-regex dropped its CommonJS build in 2.0.0 (June 2021). The last version you can require() on every Node.js version, including 18 and older, is 1.0.2, published Feb 18, 2020.

On Node.js 20.19+, 22.12+ and every newer release, require("char-regex") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

Latest
2.0.2 (Nov 20, 2024)
Module format
ESM-only
Last CommonJS version
1.0.2
ESM-only since
2.0.0 (Jun 4, 2021)
TypeScript types
Bundled
Node engines
>=12.20
Weekly downloads
47.4M
License
MIT

Does char-regex@2.0.2 actually load? Runtime test results

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

Runtimerequire("char-regex")import "char-regex"
Node.js 18✗ failsERR_REQUIRE_ESM✓ 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 char-regex

ES modules (import)

import charRegex from "char-regex";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const charRegex = require("char-regex");

// Any Node.js version:
const charRegex = await import("char-regex");

// Or pin the last CommonJS release:
// npm install char-regex@1.0.2

Module format by version

Derived from the type, main and exports fields of every stable release on npm (6 versions; the newest 6 shown).

VersionsFormatFirst published
2.0.0 – 2.0.2ESM-onlyJun 4, 2021
1.0.0 – 1.0.2CommonJSJan 31, 2020

Frequently asked

Is char-regex ESM-only?

char-regex@2.0.2 is ESM-only. char-regex dropped its CommonJS build in 2.0.0 (June 2021). The last version you can require() on every Node.js version, including 18 and older, is 1.0.2, published Feb 18, 2020.

Which version of char-regex still supports CommonJS / require()?

1.0.2 is the last version of char-regex with a CommonJS build. Install it with "npm install char-regex@1.0.2". Every version from 2.0.0 on is ESM-only.

How do I use char-regex from a CommonJS file?

Use a dynamic import: const mod = await import("char-regex"). On Node.js 20.19+, 22.12+ and newer, a plain require("char-regex") also works for ESM packages that do not use top-level await. Alternatively pin char-regex@1.0.2.

Does char-regex work in Bun?

Yes. import "char-regex" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does char-regex ship TypeScript types?

Yes. char-regex bundles its own type declarations; no @types package is needed.

Links

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