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These browsers have bugs that occasionally cause typed array comparisons to pass when they should fail, or vice versa: * for...in loops sometimes omit keys, such that two typed arrays with different lengths appear to have the same set of keys. * Typed arrays sometimes have mulitple undefined keys (which is to say that the key itself is undefined). Two typed arrays with identical length and contents can compare unequal because of the spurious undefined keys.) Those problems could be avoided by comparing keys 0...length-1 rather than the actual set of exposed keys, but that would be a pretty nasty breaking change for anyone whose code tacks extra properties onto typed arrays. So far these bugs haven't been seen in anything newer than FF 128. Since the affected browsers are all past end of life, the most sensible thing is to just stop testing against them.
A JavaScript Testing Framework
Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, Node.js projects, or anywhere that JavaScript can run.
Upgrading from Jasmine 4.x? Check out the upgrade guide.
Contributing
Please read the contributors' guide.
Installation
There are several different ways to install Jasmine, depending on your environment and how you'd like to use it. See the Getting Started page for details.
Usage
See the documentation site, particularly the Your First Suite tutorial for information on writing specs, and the FAQ.
Supported environments
Jasmine tests itself across popular browsers (Safari, Chrome, Firefox, and Microsoft Edge) as well as Node.
| Environment | Supported versions |
|---|---|
| Node | 20, 22, 24 |
| Safari | 26* |
| Chrome | Evergreen |
| Firefox | Evergreen, 140 |
| Edge | Evergreen |
For evergreen browsers, each version of Jasmine is tested against the version of the browser that is available to us at the time of release. Other browsers, as well as older & newer versions of some supported browsers, are likely to work. However, Jasmine isn't tested against them and they aren't actively supported.
* Supported on a best-effort basis. Support for these versions may be dropped if it becomes impractical, and bugs affecting only these versions may not be treated as release blockers.
To find out what environments work with a particular Jasmine release, see the release notes.
Maintainers
Maintainers Emeritus
- Davis W. Frank
- Rajan Agaskar
- Greg Cobb
- Chris Amavisca
- Christian Williams
- Sheel Choksi
Copyright (c) 2008-2019 Pivotal Labs
Copyright (c) 2008-2026 The Jasmine developers
This software is licensed under the MIT License.