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Is tldts-core ESM-only? Can you require() it?

tldts core primitives (internal module)

Last verified Sep 9, 2026 against tldts-core@7.4.12. JSON

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

tldts-core ships CommonJS only. require("tldts-core") works everywhere. import "tldts-core" 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.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

Latest
7.4.12 (Sep 7, 2026)
Module format
CommonJS
Last CommonJS version
7.4.12
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
60.8M
License
MIT

Does tldts-core@7.4.12 actually load? Runtime test results

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

Runtimerequire("tldts-core")import "tldts-core"
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 tldts-core

ES modules (import)

import tldtsCore from "tldts-core";

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 tldtsCore = require("tldts-core");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (369 versions; the newest 60 shown).

VersionsFormatFirst published
6.1.80 – 7.4.12CommonJSMar 1, 2025

Frequently asked

Is tldts-core ESM-only?

tldts-core@7.4.12 is a CommonJS package. tldts-core ships CommonJS only. require("tldts-core") works everywhere. import "tldts-core" 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 tldts-core with ES module syntax?

Yes. import tldtsCore from "tldts-core" 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 tldts-core work in Bun?

Yes. import "tldts-core" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does tldts-core ship TypeScript types?

Yes. tldts-core bundles its own type declarations; no @types package is needed.

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