# Is string.prototype.matchall ESM-only? Can you require() it?

> string.prototype.matchall@4.1.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Spec-compliant polyfill for String.prototype.matchAll

Last verified Sep 9, 2026 against string.prototype.matchall@4.1.0.

string.prototype.matchall ships CommonJS only. require("string.prototype.matchall") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "string.prototype.matchall" 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("string.prototype.matchall") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
2. From ES modules use the default import: import stringPrototypeMatchall from "string.prototype.matchall"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/string.prototype.matchall

## Facts

- Latest: 4.1.0 (Aug 28, 2026)
- Module format: CommonJS
- Last CommonJS version: 4.1.0
- TypeScript types: @types/string.prototype.matchall
- Node engines: >= 0.4
- Weekly downloads: 56.9M
- License: MIT

## Runtime test results for string.prototype.matchall@4.1.0

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

| Runtime | require("string.prototype.matchall") | import "string.prototype.matchall" |
|---|---|---|
| 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 string.prototype.matchall

ES modules:

```js
import stringPrototypeMatchall from "string.prototype.matchall";
```

CommonJS:

```js
const stringPrototypeMatchall = require("string.prototype.matchall");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (19 versions; the newest 19 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 4.1.0 | CommonJS | Sep 28, 2017 |

## Frequently asked

**Is string.prototype.matchall ESM-only?**

string.prototype.matchall@4.1.0 is a CommonJS package. string.prototype.matchall ships CommonJS only. require("string.prototype.matchall") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "string.prototype.matchall" 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 string.prototype.matchall with ES module syntax?**

Yes. import stringPrototypeMatchall from "string.prototype.matchall" 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 string.prototype.matchall work in Bun?**

Yes. import "string.prototype.matchall" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does string.prototype.matchall ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/string.prototype.matchall".

## Links

- [string.prototype.matchall on npm](https://www.npmjs.com/package/string.prototype.matchall)
- [Source repository](https://github.com/es-shims/String.prototype.matchAll)
- [HTML version](https://canirequire.com/package/string.prototype.matchall/)
- [JSON version](https://canirequire.com/package/string.prototype.matchall.json)

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