Modern JavaScript Patterns Comprehensive guide for mastering modern JavaScript (ES6+) features, functional programming patterns, and best practices for writing clean, maintainable, and performant code. When to Use This Skill - Refactoring legacy JavaScript to modern syntax - Implementing functional programming patterns - Optimizing JavaScript performance - Writing maintainable and readable code - Working with asynchronous operations - Building modern web applications - Migrating from callbacks to Promises/async-await - Implementing data transformation pipelines Detailed patterns and worked ex…