jestjs.io

• charset: UTF-8
• name: generator content: Docusaurus v3.9.1
• rh: true property: og:title content: Jest
• rh: true name: twitter:card content: summary_large_image
• rh: true property: og:image content: https://jestjs.io/img/opengraph.png
• rh: true name: twitter:image content: https://jestjs.io/img/opengraph.png
• rh: true property: og:url content: https://jestjs.io/
• rh: true property: og:locale content: en
• rh: true property: og:locale:alternate content: ja
• rh: true property: og:locale:alternate content: es_ES
• rh: true property: og:locale:alternate content: fr
• rh: true property: og:locale:alternate content: pt_BR
• rh: true property: og:locale:alternate content: ro
• rh: true property: og:locale:alternate content: ru
• rh: true property: og:locale:alternate content: uk
• rh: true property: og:locale:alternate content: zh_Hans
• rh: true name: docusaurus_locale content: en
• rh: true name: docusaurus_tag content: default
• rh: true name: docsearch:language content: en
• rh: true name: docsearch:docusaurus_tag content: default
• name: theme-color content: #FFF
• name: apple-mobile-web-app-capable content: yes
• name: apple-mobile-web-app-status-bar-style content: #000
• name: msapplication-TileImage content: /img/jest.png
• name: msapplication-TileColor content: #000
• name: viewport content: width=device-width, initial-scale=1.0 rh: true

• Skip to main content
• English
• Getting Started
• Next
• 29.7
• 24.x
• 23.x
• 22.x
• All versions
• API Reference
• Get help
• Blog
• http://jestjs.io/#
• 日本語
• Español
• Français
• Português (Brasil)
• Română
• Русский
• Українська
• 简体中文
• Config
• http://jestjs.io/docs/cli#--coverageboolean
• Mock Functions
• Guides

• Help Provide Humanitarian Aid to Ukraine
• 29.6
• 29.5
• 29.4
• 29.3
• 29.2
• 29.1
• 29.0
• 28.x
• 27.x
• 26.x
• 25.x
• GitHub
• https://twitter.com/intent/follow?screen_name=jestjs_&region=follow_link
• Babel
• TypeScript
• Node
• React
• Angular
• Vue
• Jest and Delightful JavaScript Testing
• Building High-Quality JavaScript Tools
• Jest as a Platform
• https://www.thordata.com/?ls=waOicIkB&lk=jest
• https://www.airbnb.com/
• https://www.principal.com/about-us
• https://datadoghq.com/
• opencollective.com
• 100m+ million
• 15,000,000
• https://www.facebook.com
• https://www.twitter.com
• http://www.nytimes.com/
• https://www.spotify.com
• https://www.instagram.com/
• Stack Overflow
• Reactiflux
• Twitter
• Privacy
• Terms
• https://openjsf.org/
• The OpenJS Foundation
• Trademark Policy
• Trademark List
• Terms of Use
• Privacy Policy
• Bylaws
• Code of Conduct
• Cookie Policy

            Domain Name: jestjs.io
Registry Domain ID: REDACTED
Registrar WHOIS Server: whois.1api.net
Registrar URL: http://www.1api.net
Updated Date: 2026-06-20T23:12:08Z
Creation Date: 2018-06-25T21:46:54Z
Registry Expiry Date: 2027-06-25T21:46:54Z
Registrar: 1API GmbH
Registrar IANA ID: 1387
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: renewPeriod https://icann.org/epp#renewPeriod
Registry Registrant ID: REDACTED
Registrant Name: REDACTED
Registrant Organization: Jest
Registrant Street: REDACTED
Registrant City: REDACTED
Registrant State/Province: CA
Registrant Postal Code: REDACTED
Registrant Country: US
Registrant Phone: REDACTED
Registrant Phone Ext: REDACTED
Registrant Fax: REDACTED
Registrant Fax Ext: REDACTED
Registrant Email: REDACTED
Registry Admin ID: REDACTED
Admin Name: REDACTED
Admin Organization: REDACTED
Admin Street: REDACTED
Admin City: REDACTED
Admin State/Province: REDACTED
Admin Postal Code: REDACTED
Admin Country: REDACTED
Admin Phone: REDACTED
Admin Phone Ext: REDACTED
Admin Fax: REDACTED
Admin Fax Ext: REDACTED
Admin Email: REDACTED
Registry Tech ID: REDACTED
Tech Name: REDACTED
Tech Organization: REDACTED
Tech Street: REDACTED
Tech City: REDACTED
Tech State/Province: REDACTED
Tech Postal Code: REDACTED
Tech Country: REDACTED
Tech Phone: REDACTED
Tech Phone Ext: REDACTED
Tech Fax: REDACTED
Tech Fax Ext: REDACTED
Tech Email: REDACTED
Name Server: stevie.ns.cloudflare.com
Name Server: tate.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://icann.org/wicf/
>>> Last update of WHOIS database: 2026-06-23T21:51:07Z         

Teknisk SEO

On-Page SEO

Innehåll och UX