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Is has-bigints ESM-only? Can you require() it?

Determine if the JS environment has BigInt support.

Last verified Sep 9, 2026 against has-bigints@1.1.0. JSON

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

has-bigints ships CommonJS only. require("has-bigints") works everywhere. import "has-bigints" 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.

Latest
1.1.0 (Dec 18, 2024)
Module format
CommonJS
Last CommonJS version
1.1.0
TypeScript types
Bundled
Node engines
>= 0.4
Weekly downloads
46.0M
License
MIT

Does has-bigints@1.1.0 actually load? Runtime test results

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

Runtimerequire("has-bigints")import "has-bigints"
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 has-bigints

ES modules (import)

import hasBigints from "has-bigints";

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 hasBigints = require("has-bigints");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (4 versions; the newest 4 shown).

VersionsFormatFirst published
1.0.0 – 1.1.0CommonJSAug 11, 2019

Frequently asked

Is has-bigints ESM-only?

has-bigints@1.1.0 is a CommonJS package. has-bigints ships CommonJS only. require("has-bigints") works everywhere. import "has-bigints" 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 has-bigints with ES module syntax?

Yes. import hasBigints from "has-bigints" 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 has-bigints work in Bun?

Yes. import "has-bigints" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does has-bigints ship TypeScript types?

Yes. has-bigints bundles its own type declarations; no @types package is needed.

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