Jasmine is a popular behavior-driven development (BDD) testing framework for JavaScript. It provides a clean and expressive syntax for writing tests, allowing developers to define expectations and specifications in a human-readable format. Jasmine offers a comprehensive set of functions and matchers to perform assertions and test various scenarios. It supports both synchronous and asynchronous testing, making it suitable for testing different types of applications. With its easy setup and intuitive syntax, Jasmine promotes test-driven development (TDD) and helps ensure the reliability and quality of JavaScript code by providing a robust testing framework.