Vue Composition API Master the Vue 3 Composition API for building scalable, maintainable Vue applications with better code organization and reusability. Setup Function Fundamentals The function is the entry point for using the Composition API: Script Setup Syntax Modern Vue 3 uses for cleaner syntax: Ref vs Reactive - When to Use Each Use Ref For Use Reactive For Avoid Reactive For Computed Properties Patterns Basic Computed Writable Computed Computed with Complex Logic Watch and WatchEffect Watch - Explicit Dependencies WatchEffect - Auto Tracking Advanced Watch Options Lifecycle Hooks in Co…