# Jest🃏 Delightful JavaScript Testing-**👩🏻💻 Developer Ready**: Complete and ready to set-up JavaScript testing solution. Works out of the box for any React project.-**🏃🏽 Instant Feedback**: Failed tests run first. Fast interactive mode can switch between running all tests or only test files related to changed files.-**📸 Snapshot Testing**: Jest can [capture snapshots](https://jestjs.io/docs/snapshot-testing.html) of React trees or other serializable values to simplify UI testing.Read More: https://jestjs.io/