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

An extensible static analysis linter for the TypeScript language

Last verified Sep 9, 2026 against tslint@6.1.3. Markdown · JSON

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

tslint ships CommonJS only. require("tslint") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=4.8.0. import "tslint" 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("tslint") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=4.8.0.
  2. From ES modules use the default import: import tslint from "tslint"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: types are bundled; install nothing extra.
  4. This package is deprecated: TSLint has been deprecated in favor of ESLint. Please see https://github.com/palantir/tslint/issues/4534 for more information.
Latest
6.1.3 (Jul 31, 2020)
Module format
CommonJS
Last CommonJS version
6.1.3
TypeScript types
Bundled
Node engines
>=4.8.0
Weekly downloads
1.2M
License
Apache-2.0

Deprecated: TSLint has been deprecated in favor of ESLint. Please see https://github.com/palantir/tslint/issues/4534 for more information.

Does tslint@6.1.3 actually load? Runtime test results

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

Runtimerequire("tslint")import "tslint"
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 tslint

ES modules (import)

import tslint from "tslint";

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 tslint = require("tslint");

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 (126 versions; the newest 60 shown).

VersionsFormatFirst published
3.8.0 – 6.1.3CommonJSApr 21, 2016

Frequently asked

Is tslint ESM-only?

tslint@6.1.3 is a CommonJS package. tslint ships CommonJS only. require("tslint") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=4.8.0. import "tslint" 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 tslint with ES module syntax?

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

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

Does tslint ship TypeScript types?

Yes. tslint bundles its own type declarations; no @types package is needed.

Links

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