9.5 Pure Functions and Immutability

In this section

• Writing Side-Effect-Free Code: Mastering Pure Functions and Immutability in JavaScript
  Explore the principles of writing side-effect-free code in JavaScript, focusing on pure functions and immutability. Learn how these practices enhance code reliability, maintainability, and testability.
• Testing and Scalability Benefits of JavaScript Design Patterns
  Explore the benefits of JavaScript design patterns for testing and scalability, focusing on pure functions, immutability, concurrency, and debugging.