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Chapter 5: Mastering Functions in 2026
Deep dive into functions, scope, and the modern syntax that defines 2026 JavaScript.
Mastering Functions in 2026
Functions are the heart of JavaScript. We’ll explore functional programming patterns and modern arrow function syntax.
Key Topics
- Function Declarations vs Expressions
- Arrow Functions and Lexical
this - Rest Parameters and Spread Syntax
- Default Parameters and Destructuring