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

> wrappy@1.0.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Callback wrapping utility

Last verified Sep 9, 2026 against wrappy@1.0.2.

wrappy ships CommonJS only. require("wrappy") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "wrappy" 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("wrappy") 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 wrappy from "wrappy"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: no types are available for wrappy; declare the module yourself if you need them.

## Facts

- Latest: 1.0.2 (May 17, 2016)
- Module format: CommonJS
- Last CommonJS version: 1.0.2
- TypeScript types: none
- Node engines: not declared
- Weekly downloads: 106.2M
- License: ISC

## Runtime test results for wrappy@1.0.2

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

| Runtime | require("wrappy") | import "wrappy" |
|---|---|---|
| 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 wrappy

ES modules:

```js
import wrappy from "wrappy";
```

CommonJS:

```js
const wrappy = require("wrappy");
```

## Module format by version

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

| Versions | Format | First published |
|---|---|---|
| 0.0.0 – 1.0.2 | CommonJS | Apr 22, 2021 |

## Frequently asked

**Is wrappy ESM-only?**

wrappy@1.0.2 is a CommonJS package. wrappy ships CommonJS only. require("wrappy") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "wrappy" 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 wrappy with ES module syntax?**

Yes. import wrappy from "wrappy" 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 wrappy work in Bun?**

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

**Does wrappy ship TypeScript types?**

No. wrappy ships no type declarations and there is no @types package for it.

## Links

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

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