jest-util
npmv30.5.1TypeScriptThis packages is a collection of utilities and helper functions
Safe to adopt
Yes — jest-util scores well across adoption, maintenance, weight, supply chain, and licensing. 104M downloads per week and 23 known dependents. Last published 9 days ago. 16 releases in the last 2 years.
- AAdoption: grade A, Excellent.
104M downloads per week and 23 known dependents.
- AMaintenance: grade A, Excellent.
Last published 9 days ago. 16 releases in the last 2 years.
- BWeight: grade B, Good.
Pulls in 16 transitive packages, about 2.9 MB installed (at least — some of the tree is still being crawled).
- ASupply chain: grade A, Excellent.
No install scripts, 5 maintainers, and a contained dependency surface.
- ALicense: grade A, Excellent.
MIT — permissive, with no copyleft found in the dependency tree.
Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.
Install cost
What you actually take on by adding jest-util to a project.
Runtime packages this one declares itself.
Distinct packages in the full runtime tree, deduplicated the way a package manager would.
Unpacked size of this package plus its entire runtime tree.
Longest resolved dependency chain below this package.
Part of this dependency tree has not been crawled yet, so these figures are a lower bound rather than a final total.
Licenses in the dependency tree
Every license you inherit by installing jest-util, not just its own. Check this before a legal review, not after.
Compatibility
- Node.js
- node ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0
- Module format
- ESM + CommonJS
- TypeScript
- Types included
- Install scripts
- None
Dependencies
Declared by jest-util v30.5.1. Runtime dependencies are installed with the package; dev dependencies are not.
Runtime (6)
Dev (5)
Used by
Popular packages that depend on jest-util.
No description provided.
No description provided.
Jest's reporters
A module used internally by Jest to check which files have changed since you last committed in git or hg.
No description provided.
Parameterised tests for Jest
`jest-haste-map` is a module used by Jest, a popular JavaScript testing framework, to create a fast lookup of files in a project. It helps Jest efficiently locate and track changes in files during testing, making it particularly useful for large projects
No description provided.
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This package exports the `expect` function used in [Jest](https://jestjs.io/). You can find its documentation [on Jest's website](https://jestjs.io/docs/expect).
**Note:** More details on user side API can be found in [Jest documentation](https://jestjs.io/docs/mock-function-api).
No description provided.
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[type-definitions]: https://github.com/jestjs/jest/blob/main/packages/jest-types/src/Circus.ts
Delightful JavaScript Testing.
This module creates a function which is used for generating cache keys used by code transformers in Jest.
Delightful JavaScript Testing.
Module for executing heavy tasks under forked processes in parallel, by providing a `Promise` based interface, minimum overhead, and bound workers.
No description provided.
Delightful JavaScript Testing.
Stringify any JavaScript value.
Relationship graph
Dependencies (left) and dependents (right) of jest-util.
Frequently installed together
This package contains shared types of Jest's packages.
TypeScript definitions for node
A drop-in replacement for fs, making various improvements.
Convert Windows backslash paths to slash paths
No description provided.
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Stringify any JavaScript value.
Generic configuration validation tool that helps you with warnings, errors and deprecation messages as well as showing users examples of correct configuration.
No description provided.
`jest-haste-map` is a module used by Jest, a popular JavaScript testing framework, to create a fast lookup of files in a project. It helps Jest efficiently locate and track changes in files during testing, making it particularly useful for large projects
No description provided.
No description provided.
Release history
16 releases in the last two years, typically about 18 days apart.
| Version | Published | Size | License |
|---|---|---|---|
| 30.5.1latest | 9 days ago | 56 KB | MIT |
| 30.5.0 | 12 days ago | 56 KB | MIT |
| 30.4.1 | 4 months ago | 55 KB | MIT |
| 30.4.0 | 4 months ago | 55 KB | MIT |
| 30.3.0 | 6 months ago | 54 KB | MIT |
| 30.2.0 | 11 months ago | 63 KB | MIT |
| 30.0.5 | 1 year ago | 63 KB | MIT |
| 30.0.2 | 1 year ago | 54 KB | MIT |
| 30.0.1 | 1 year ago | 54 KB | MIT |
| 30.0.0 | 1 year ago | 51 KB | MIT |
| 30.0.0-rc.1 | 1 year ago | 51 KB | MIT |
| 30.0.0-beta.8 | 1 year ago | 51 KB | MIT |
| 30.0.0-beta.7 | 1 year ago | 51 KB | MIT |
| 30.0.0-beta.6 | 1 year ago | 51 KB | MIT |
| 30.0.0-beta.3 | 1 year ago | 47 KB | MIT |
Overview
jest-util is an npm package that this packages is a collection of utilities and helper functions. It is extremely widely used, with about 104M downloads per week and 23 known dependents in the graph. The latest version is 30.5.1, released under the MIT license.
Who should use it
Teams working in the npm ecosystem who need this packages is a collection of utilities and helper functions and value a battle-tested, widely-adopted solution.
When not to use it
Consider an alternative if you need to or if a more actively-maintained option better fits your npm stack.
Pros
- Large, well-established user base (104M weekly downloads).
- Ships TypeScript type definitions.
- Clear open-source license (MIT).
Cons
- No significant drawbacks detected from available metadata.
Auto-generated from collected registry metadata. No external claims are inferred.
Frequently asked questions
Should I use jest-util?
Yes — jest-util scores well across adoption, maintenance, weight, supply chain, and licensing. 104M downloads per week and 23 known dependents. Last published 9 days ago. 16 releases in the last 2 years.
How do I install jest-util?
Run `npm install jest-util` to add jest-util to your npm project.
How many dependencies does jest-util have?
jest-util declares 11 direct dependencies and pulls in 16 packages in total once its runtime tree is resolved totalling about 2.9 MB on disk.
What license is jest-util released under?
jest-util is distributed under the MIT license. Its dependency tree also includes: ISC, MIT.
How popular is jest-util?
jest-util has approximately 104,035,237 downloads per week and 23 known dependent packages.
Is jest-util still maintained?
The most recent release of jest-util (v30.5.1) was published 9 days ago.
Does jest-util run install scripts?
No. jest-util does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.