The tutorial on Cucumber.js explores the benefits of using this Behavior Driven Development (BDD) framework for Selenium JavaScript testing, highlighting its ability to make test scripts easily understandable for non-programmers through a given-when-then structure. It discusses the setup process involving Node.js, npm, and other necessary installations such as Selenium WebDriver and browser drivers. The article also explains how to organize a Cucumber.js project, create feature and step definition files, and execute tests, including running scripts on a cloud-based Selenium Grid like LambdaTest to enhance test coverage and efficiency. The tutorial emphasizes the advantages of parallel testing to reduce test execution time and suggests that Cucumber.js offers flexible, human-readable test descriptions that facilitate communication and collaboration among stakeholders. The tutorial concludes by acknowledging the framework's potential for extensive Selenium JavaScript testing and invites feedback on the content.