Vue 3: Modern Development Guide

Introduction to Vue 3

Vue 3 represents a significant evolution of the Vue.js framework, introducing the Composition API, improved TypeScript support, and better performance. This guide will help you master modern Vue development.

Composition API

The Composition API is Vue 3's new way of organizing component logic. It provides better code organization, reusability, and TypeScript support compared to the Options API.

Reactive References

Use ref() and reactive() to create reactive data. Understanding when to use each is crucial for effective Vue 3 development.

Computed Properties

Computed properties in the Composition API provide a clean way to derive values from reactive data with automatic caching and dependency tracking.

TypeScript Integration

Vue 3 has excellent TypeScript support. Learn how to properly type your components, props, and composables for better development experience and fewer runtime errors.

Advanced Features

Teleport

Teleport allows you to render component content in a different part of the DOM tree, perfect for modals, tooltips, and other overlay components.

Fragments

Vue 3 supports multiple root nodes in components, eliminating the need for wrapper elements and providing more flexibility in component structure.

Best Practices

• Use Composition API for complex components
• Leverage TypeScript for type safety
• Organize composables for reusability
• Optimize performance with proper reactivity
• Follow Vue 3 style guide recommendations

Conclusion

Vue 3 offers powerful new features and improved developer experience. By mastering the Composition API and TypeScript integration, you'll be able to build scalable, maintainable Vue applications.