Best Practices and Performance Optimization of Vue 3 Composition API

The Composition API provides a more flexible way to organize component logic through the setup function, making it particularly suitable for the development of complex components.
Logical reuse mode
Customize Comptables
By creating custom composites, we can easily reuse component logic:
//Use in components
                    
Responsive system optimization
Reasonable use of ref and reactive
Choosing the appropriate responsive API is crucial for performance:
//Basic types use ref
//Consider using Shallow Reactive for large objects
Avoid unnecessary reactive conversions
//Using markRaw to avoid deep responsiveness
//Create a read-only proxy using readonly
Calculate attribute optimization
Reasonable use of computational properties can avoid unnecessary calculations:
//Recalculate only when dependencies change
//Use cached calculation properties
Best practices for lifecycle hooks
TypeScript Integration
Vue 3 has more comprehensive support for TypeScript:
Performance monitoring and debugging
Monitor application performance using Vue VNet and performance APIs:
//Monitor responsive data changes
//Performance markers
                   
Common pitfalls and solutions
Reactive Loss: Deconstructing Reactive Objects with toRefs
Memory leak: Clean up event listeners and timers in a timely manner
Overresponsive: Reasonable use of Shallow Ref and Shallow Reactive
Calculate attribute dependencies: Ensure that the dependencies of the calculated attributes are correct
summary
The Composition API of Vue 3 provides a more powerful and flexible approach to component development. By following best practices, we can write Vue applications that are easier to maintain and perform better. The key is to understand the working principle of responsive systems, choose APIs reasonably, and pay attention to performance optimization.