# Is es6-promise ESM-only? Can you require() it?

> es6-promise@4.2.8 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

A lightweight library that provides tools for organizing asynchronous code

Last verified Sep 9, 2026 against es6-promise@4.2.8.

es6-promise ships CommonJS only. require("es6-promise") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "es6-promise" 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("es6-promise") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
2. From ES modules use the default import: import es6Promise from "es6-promise"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 4.2.8 (Jun 6, 2019)
- Module format: CommonJS
- Last CommonJS version: 4.2.8
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 16.5M
- License: MIT

## Runtime test results for es6-promise@4.2.8

Installed and executed on Sep 9, 2026 with require("es6-promise") from a CommonJS file and import "es6-promise" from an ES module.

| Runtime | require("es6-promise") | import "es6-promise" |
|---|---|---|
| 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 es6-promise

ES modules:

```js
import es6Promise from "es6-promise";
```

CommonJS:

```js
const es6Promise = require("es6-promise");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (34 versions; the newest 34 shown).

| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 4.2.8 | CommonJS | Dec 16, 2013 |

## Frequently asked

**Is es6-promise ESM-only?**

es6-promise@4.2.8 is a CommonJS package. es6-promise ships CommonJS only. require("es6-promise") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "es6-promise" 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 es6-promise with ES module syntax?**

Yes. import es6Promise from "es6-promise" 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 es6-promise work in Bun?**

Yes. import "es6-promise" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does es6-promise ship TypeScript types?**

Yes. es6-promise bundles its own type declarations; no @types package is needed.

## Links

- [es6-promise on npm](https://www.npmjs.com/package/es6-promise)
- [Source repository](https://github.com/stefanpenner/es6-promise)
- [HTML version](https://canirequire.com/package/es6-promise/)
- [JSON version](https://canirequire.com/package/es6-promise.json)

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