# Is jest-watch-typeahead ESM-only? Can you require() it?

> jest-watch-typeahead@3.0.1 is ESM-only. ESM-only since 1.0.0 — last CommonJS version is 0.6.5.

Jest plugin for filtering by filename or test name

Last verified Sep 9, 2026 against jest-watch-typeahead@3.0.1.

jest-watch-typeahead dropped its CommonJS build in 1.0.0 (September 2021). The last version with a plain require()-able CommonJS entry is 0.6.5, published Sep 28, 2021; it declares support for Node.js >=10.

require("jest-watch-typeahead") failed in our probe on Node.js 20+ as well; see the runtime table for the error before relying on it. On Node.js 18, which has no require(esm), require("jest-watch-typeahead") fails with ERR_REQUIRE_ESM.

## What to do

1. require("jest-watch-typeahead") failed in our probe on Node.js 20+ as well; see the runtime table for the error before relying on it.
2. From a CommonJS file, use a dynamic import inside an async function: const jestWatchTypeahead = await import("jest-watch-typeahead"). That works on every Node.js version the package supports (>=18.0.0).
3. If you need a synchronous require() or run Node.js 18: npm install jest-watch-typeahead@0.6.5, the last CommonJS release (published Sep 28, 2021); it declares Node.js >=10.
4. TypeScript: no types are available for jest-watch-typeahead; declare the module yourself if you need them.

## Facts

- Latest: 3.0.1 (Jun 19, 2025)
- Module format: ESM-only
- Last CommonJS version: 0.6.5
- ESM-only since: 1.0.0 (Sep 29, 2021)
- TypeScript types: none
- Node engines: >=18.0.0
- Weekly downloads: 7.7M
- License: MIT

## Runtime test results for jest-watch-typeahead@3.0.1

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

| Runtime | require("jest-watch-typeahead") | import "jest-watch-typeahead" |
|---|---|---|
| Node.js 18 | fails (ERR_REQUIRE_ESM) | fails (Error) |
| Node.js 20 | fails (Error) | fails (Error) |
| Node.js 22 | fails (Error) | fails (Error) |
| Node.js 24 | fails (Error) | fails (Error) |
| Node.js 26 | fails (Error) | fails (Error) |
| Bun 1.4.0 | fails (Error) | fails (Error) |

## How to import jest-watch-typeahead

ES modules:

```js
import * as jestWatchTypeahead from "jest-watch-typeahead";
```

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

CommonJS:

```js
// require("jest-watch-typeahead") failed in our probe on Node.js 20.19+, 22.12+ and newer as well (Error); see the runtime table.

// Any Node.js version the package supports (>=18.0.0), from an async function:
async function main() {
  const jestWatchTypeahead = await import("jest-watch-typeahead");
}

// Or pin the last CommonJS release (declares Node.js >=10):
// npm install jest-watch-typeahead@0.6.5
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (26 versions; the newest 26 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 3.0.1 | ESM-only | Sep 29, 2021 |
| 0.0.1 – 0.6.5 | CommonJS | May 29, 2018 |

## Frequently asked

**Is jest-watch-typeahead ESM-only?**

jest-watch-typeahead@3.0.1 is ESM-only. jest-watch-typeahead dropped its CommonJS build in 1.0.0 (September 2021). The last version with a plain require()-able CommonJS entry is 0.6.5, published Sep 28, 2021; it declares support for Node.js >=10.

**Which version of jest-watch-typeahead still supports CommonJS / require()?**

0.6.5 is the last version of jest-watch-typeahead with a CommonJS build; it declares Node.js >=10. Install it with "npm install jest-watch-typeahead@0.6.5". Every version from 1.0.0 on is ESM-only.

**How do I use jest-watch-typeahead from a CommonJS file?**

From a CommonJS file, use a dynamic import inside an async function: const jestWatchTypeahead = await import("jest-watch-typeahead"). That works on every Node.js version the package supports (>=18.0.0). require("jest-watch-typeahead") failed in our probe on Node.js 20+ as well; see the runtime table for the error before relying on it. Alternatively pin jest-watch-typeahead@0.6.5 (declares Node.js >=10).

**Does jest-watch-typeahead work in Bun?**

Importing jest-watch-typeahead failed in Bun 1.4.0 on Sep 9, 2026: error:

**Does jest-watch-typeahead ship TypeScript types?**

No. jest-watch-typeahead ships no type declarations and there is no @types package for it.

## Links

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

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