Description

Jest is a JavaScript testing framework created by Facebook. It is used to test React applications, as well as other JavaScript frameworks and libraries. It is an open-source project and is used by companies like Airbnb, Instagram, and Twitter. Jest provides features such as snapshot testing, code coverage, and parallel test execution. It also supports mocking, spying, and stubbing. Jest is easy to setup and provides strong assertions for making sure your code works as expected. It also provides a command line interface for running tests and is fully integrated with popular build systems such as Webpack and Babel. Jest is a great tool for developers to ensure their code is bug-free and works as expected.

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