# is-bigint

> Is this value an ES BigInt?

Latest version **1.1.0** (published 2024-12-02) · MIT license · 0 weekly downloads

## Install

```sh
npm install is-bigint
pnpm add is-bigint
yarn add is-bigint
bun add is-bigint
```

## Health

**Score 45/100 (D)** — status: stable.

Positive: has types; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support.

Negative: stale.

## Facts

| | |
|---|---|
| Version | 1.1.0 |
| Published | 2024-12-02 |
| First published | 2018-09-21 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | CommonJS |
| Node | >= 0.4 |
| Dependencies | 1 |
| Unpacked size | 17.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 7 |
| Author | Jordan Harband |
| Maintainers | ljharb |
| Keywords | bigint, es, integer, is |

## Links

- npm: https://www.npmjs.com/package/is-bigint
- Repository: https://github.com/inspect-js/is-bigint
- Homepage: https://github.com/inspect-js/is-bigint#readme
- Issues: https://github.com/inspect-js/is-bigint/issues
- Funding: https://github.com/sponsors/ljharb
- npm.io page: https://npm.io/package/is-bigint

## Dependencies (1)

- [has-bigints](https://npm.io/package/has-bigints.md) ^1.0.2

## Alternatives

- [memory-cache](https://npm.io/package/memory-cache.md) — 795.0K weekly downloads
- [@httptoolkit/proxy-agent](https://npm.io/package/@httptoolkit/proxy-agent.md) — 11.2K weekly downloads
- [express-cache-controller](https://npm.io/package/express-cache-controller.md) — 5.3K weekly downloads
- [http-cache-middleware](https://npm.io/package/http-cache-middleware.md) — 4.5K weekly downloads
- [cache2](https://npm.io/package/cache2.md) — 1.5K weekly downloads

## Recent versions

- 1.1.0 (latest) — 2024-12-02
- 1.0.4 — 2021-08-12
- 1.0.3 — 2021-08-06
- 1.0.2 — 2021-05-04
- 1.0.1 — 2020-11-30
- 1.0.0 — 2018-09-21

## README

# is-bigint <sup>[![Version Badge][2]][1]</sup>

[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![dependency status][5]][6]
[![dev dependency status][7]][8]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]

[![npm badge][11]][1]

Is this an ES BigInt value?

## Example

```js
var isBigInt = require('is-bigint');
assert(!isBigInt(function () {}));
assert(!isBigInt(null));
assert(!isBigInt(function* () { yield 42; return Infinity; });
assert(!isBigInt(Symbol('foo')));

assert(isBigInt(1n));
assert(isBigInt(Object(1n)));
```

## Tests
Simply clone the repo, `npm install`, and run `npm test`

[1]: https://npmjs.org/package/is-bigint
[2]: https://versionbadg.es/inspect-js/is-bigint.svg
[5]: https://david-dm.org/inspect-js/is-bigint.svg
[6]: https://david-dm.org/inspect-js/is-bigint
[7]: https://david-dm.org/inspect-js/is-bigint/dev-status.svg
[8]: https://david-dm.org/inspect-js/is-bigint#info=devDependencies
[11]: https://nodei.co/npm/is-bigint.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/is-bigint.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/is-bigint.svg
[downloads-url]: https://npm-stat.com/charts.html?package=is-bigint
[codecov-image]: https://codecov.io/gh/inspect-js/is-bigint/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/inspect-js/is-bigint/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-bigint
[actions-url]: https://github.com/inspect-js/is-bigint/actions

---
_Source: https://npm.io/package/is-bigint · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._