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Is eslint-visitor-keys ESM-only? Can you require() it?

Constants and utilities about visitor keys to traverse AST.

Last verified Sep 9, 2026 against eslint-visitor-keys@5.0.1. Markdown · JSON

Dual (CommonJS + ESM) Dual package — require() works on every Node.js version we test; import works too

eslint-visitor-keys publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("eslint-visitor-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24. import "eslint-visitor-keys" works alongside it.

What to do

  1. Nothing to change. require("eslint-visitor-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24. import * as eslintVisitorKeys from "eslint-visitor-keys" works alongside it; use named imports for what the ESM entry exports.
  2. TypeScript: types are bundled; install nothing extra.
Latest
5.0.1 (Feb 20, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
5.0.1
Native ESM since
3.0.0
TypeScript types
Bundled
Node engines
^20.19.0 || ^22.13.0 || >=24
Weekly downloads
340.8M
License
Apache-2.0

Does eslint-visitor-keys@5.0.1 actually load? Runtime test results

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

Runtimerequire("eslint-visitor-keys")import "eslint-visitor-keys"
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 eslint-visitor-keys

ES modules (import)

import * as eslintVisitorKeys from "eslint-visitor-keys";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

const eslintVisitorKeys = require("eslint-visitor-keys");

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 (21 versions; the newest 21 shown).

VersionsFormatFirst published
3.0.0 – 5.0.1Dual (CommonJS + ESM)Jun 24, 2021
0.1.0 – 2.1.0CommonJSNov 17, 2017

Frequently asked

Is eslint-visitor-keys ESM-only?

eslint-visitor-keys@5.0.1 ships CommonJS and ESM builds. eslint-visitor-keys publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("eslint-visitor-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24. import "eslint-visitor-keys" works alongside it.

Can I require eslint-visitor-keys?

Yes. eslint-visitor-keys ships a CommonJS entry alongside the native ESM entry. require("eslint-visitor-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24.

Does eslint-visitor-keys work in Bun?

Yes. import "eslint-visitor-keys" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does eslint-visitor-keys ship TypeScript types?

Yes. eslint-visitor-keys bundles its own type declarations; no @types package is needed.

Links

Other dual (commonjs + esm) packages

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