Vue.js 3 Composition API: A Practical Guide
Apr 25, 2026
5 min read
The Vue.js 3 Composition API represents a significant shift in how we write Vue components. Unlike the Options API, the Composition API allows you to organize your code by feature rather than by lifecycle hooks.
In this comprehensive guide, we'll explore:
- The fundamentals of the Composition API
- How to create and use composables
- Managing state with ref, reactive, and computed
- Working with lifecycle hooks in the Composition API
- Testing Composition API components
Whether you're migrating an existing project or starting fresh, the Composition API offers a more flexible and powerful way to structure your Vue applications. Let's dive into practical examples that you can apply immediately.
In this comprehensive guide, we'll explore:
- The fundamentals of the Composition API
- How to create and use composables
- Managing state with ref, reactive, and computed
- Working with lifecycle hooks in the Composition API
- Testing Composition API components
Whether you're migrating an existing project or starting fresh, the Composition API offers a more flexible and powerful way to structure your Vue applications. Let's dive into practical examples that you can apply immediately.