What are some common challenges faced by JavaScript testers when working with rapidly evolving codebases?

One frequent challenge for JavaScript Testers is ensuring test coverage and reliability in codebases that change quickly, especially in agile development environments. Testers must regularly update test scripts to accommodate new features or refactored code, which requires strong collaboration with developers and a proactive approach to keeping tests relevant. Additionally, maintaining compatibility across different browsers and devices can add complexity. Effective communication and use of automation tools can help mitigate these challenges and ensure quality.