# @jest/expect-utils

> This module exports some utils for the `expect` function used in [Jest](https://jestjs.io/).

Latest version **30.5.1** (published 2026-09-01) · MIT license · 0 weekly downloads

## Install

```sh
npm install @jest/expect-utils
pnpm add @jest/expect-utils
yarn add @jest/expect-utils
bun add @jest/expect-utils
```

## Health

**Score 70/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; recently updated; high maintenance score; popular repo.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 30.5.1 |
| Published | 2026-09-01 |
| First published | 2022-02-10 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | ^18.14.0 \|\| ^20.0.0 \|\| ^22.0.0 \|\| >=24.0.0 |
| Dependencies | 1 |
| Unpacked size | 34.9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 45469 |
| Maintainers | aaronabramov, simenb, rickhanlonii, openjs-operations, cpojer |

## Links

- npm: https://www.npmjs.com/package/@jest/expect-utils
- Repository: https://github.com/jestjs/jest
- Homepage: https://github.com/jestjs/jest#readme
- Issues: https://github.com/jestjs/jest/issues
- npm.io page: https://npm.io/package/@jest/expect-utils

## Dependencies (1)

- [@jest/get-type](https://npm.io/package/@jest/get-type.md) 30.5.0

## Recent versions

- 30.5.1 (latest) — 2026-09-01
- 30.0.0-rc.1 (next) — 2025-06-09
- 30.5.0 — 2026-08-28
- 30.4.1 — 2026-05-08
- 30.4.0 — 2026-05-07
- 30.3.0 — 2026-03-10
- 30.2.0 — 2025-09-28
- 30.1.2 — 2025-09-01
- 30.1.1 — 2025-08-27
- 30.1.0 — 2025-08-27
- 30.0.5 — 2025-07-22
- 30.0.4 — 2025-07-02
- 30.0.3 — 2025-06-25
- 30.0.2 — 2025-06-19
- 30.0.1 — 2025-06-18
- … 57 more at https://npm.io/package/@jest/expect-utils/versions

## README

# `@jest/expect-utils`

This module exports some utils for the `expect` function used in [Jest](https://jestjs.io/).

You probably don't want to use this package directly. E.g. if you're writing [custom matcher](https://jestjs.io/docs/expect#expectextendmatchers), you should use the injected [`this.equals`](https://jestjs.io/docs/expect#thisequalsa-b).

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_Source: https://npm.io/package/@jest/expect-utils · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._