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

> p-map@7.0.7 is ESM-only. ESM-only since 5.0.0 — last CommonJS version is 4.0.0.

Map over promises concurrently

Last verified Sep 9, 2026 against p-map@7.0.7.

p-map dropped its CommonJS build in 5.0.0 (April 2021). The last version with a plain require()-able CommonJS entry is 4.0.0, published Mar 5, 2020; it declares support for Node.js >=10.

On Node.js 20.19+, 22.12+ and newer, require("p-map") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. On Node.js 18, which has no require(esm), require("p-map") fails with ERR_REQUIRE_ESM.

## What to do

1. On Node.js 20.19+, 22.12+ and newer, require("p-map") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26.
2. From a CommonJS file, use a dynamic import inside an async function: const pMap = await import("p-map"). That works on every Node.js version the package supports (>=18).
3. If you need a synchronous require() or run Node.js 18: npm install p-map@4.0.0, the last CommonJS release (published Mar 5, 2020); it declares Node.js >=10.
4. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 7.0.7 (Aug 27, 2026)
- Module format: ESM-only
- Last CommonJS version: 4.0.0
- ESM-only since: 5.0.0 (Apr 17, 2021)
- TypeScript types: bundled
- Node engines: >=18
- Weekly downloads: 70.9M
- License: MIT

## Runtime test results for p-map@7.0.7

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

| Runtime | require("p-map") | import "p-map" |
|---|---|---|
| Node.js 18 | fails (ERR_REQUIRE_ESM) | 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 p-map

ES modules:

```js
import * as pMap from "p-map";
```

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS:

```js
// Node.js 20.19+, 22.12+ and newer (verified):
const pMap = require("p-map");

// Any Node.js version the package supports (>=18), from an async function:
async function main() {
  const pMap = await import("p-map");
}

// Or pin the last CommonJS release (declares Node.js >=10):
// npm install p-map@4.0.0
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (23 versions; the newest 23 shown).

| Versions | Format | First published |
|---|---|---|
| 5.0.0 – 7.0.7 | ESM-only | Apr 17, 2021 |
| 1.0.0 – 4.0.0 | CommonJS | Oct 21, 2016 |

## Frequently asked

**Is p-map ESM-only?**

p-map@7.0.7 is ESM-only. p-map dropped its CommonJS build in 5.0.0 (April 2021). The last version with a plain require()-able CommonJS entry is 4.0.0, published Mar 5, 2020; it declares support for Node.js >=10.

**Which version of p-map still supports CommonJS / require()?**

4.0.0 is the last version of p-map with a CommonJS build; it declares Node.js >=10. Install it with "npm install p-map@4.0.0". Every version from 5.0.0 on is ESM-only.

**How do I use p-map from a CommonJS file?**

From a CommonJS file, use a dynamic import inside an async function: const pMap = await import("p-map"). That works on every Node.js version the package supports (>=18). On Node.js 20.19+, 22.12+ and newer, require("p-map") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. Alternatively pin p-map@4.0.0 (declares Node.js >=10).

**Does p-map work in Bun?**

Yes. import "p-map" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does p-map ship TypeScript types?**

Yes. p-map bundles its own type declarations; no @types package is needed.

## Links

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

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