Week 4

Key Concepts

• Dynamic Typing: Variables can hold any type, type determined at runtime
• let vs const: let for reassignable, const for immutable references
• Type Coercion: JavaScript converts types automatically in operations
• Functions as Values: Functions can be assigned to variables and passed as arguments
• Callbacks: Functions passed to other functions to be executed later
• Array Methods: .forEach(), .map(), .filter(), .reduce()