Jest is a delightful JavaScript Testing Framework created by Facebook. It's an open source project maintained by a community of developers and is used by companies like Airbnb, Facebook, and Twitter. It's fast, reliable, and feature-rich. Jest makes it easy to write tests for any JavaScript project. It has a great API that allows for mocking, stubbing, and spying. It also has a powerful assertion library, and it's easy to integrate with other libraries like Enzyme and Sinon. Jest is becoming more and more popular with developers who need to quickly and reliably test their projects. With its simple setup and robust features, Jest is the perfect choice for any JavaScript developer.
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