Cypress is a popular end-to-end testing framework for web applications, and JavaScript is the primary language used to write Cypress tests.
The combination of Cypress and JavaScript allows you to write powerful and expressive tests to automate interactions with your web application and verify its behavior.
Please see here in more detail [Cypress JavaScript Tutorial: A Step-By-Step Handbook - DZone](https://Cypress JavaScript Tutorial: A Step-by-Step Handbook For Beginners)