This chapter highlights the importance of improving efficiency and security in web applications. Through class optimization, a problem in user management was addressed, proposing a solution using bcryptjs for password hashing and Browserify for code compatibility. This strengthened the protection of sensitive data and streamlined information handling.
In the context of an online store, optimized and non‑optimized versions of product management were analyzed. Practical examples demonstrated that a well‑optimized structure reduces loading times and improves user experience. This comparison highlighted the relevance of applying best practices in the development of e‑commerce applications.
Finally, the chapter emphasizes the value of technical documentation. Key reasons for documenting code are presented, and JSDoc is introduced as an effective tool. Generating HTML documentation directly from Visual Studio Code provides a clear reference for developers, improving maintainability and team collaboration.