The blog discusses advanced topics related to executing N1QL (SQL++) statements within JavaScript functions, covering the practicalities and limitations of calling functions directly, executing N1QL that calls user-defined functions (UDFs), and the implications of recursive function calls. It highlights that calling JavaScript functions directly bypasses the N1QL layer, saving resources, and addresses the challenges of nested UDF calls, which can exhaust JavaScript workers and lead to function failure. Additionally, it explains the role-based access control (RBAC) requirements for executing N1QL within JavaScript functions, emphasizing that privilege errors surface only at runtime. The blog also discusses side effects and transactional operations, noting that functions executed as part of expressions cannot have side effects, and transactional N1QL statements can be included in JavaScript functions if executed via the EXECUTE FUNCTION statement. The behavior of iterators and statements within transactions is explained, aligning with standard database engine practices. The article concludes by indicating future blog content on JavaScript library management.