Functions and Closures

JavaScript Mastery module 2 focuses on functions and closures in a practical engineering context.

Learning objectives

• Explain the role of functions and closures in a complete programming workflow.
• Apply the technique to a small, testable implementation.
• Evaluate trade-offs and communicate a production-minded decision.

Practice

Build a focused exercise for JavaScript Mastery, review the result against the module goals, and record one improvement for the capstone.