🔗 Vue basics: state management in Vue

Learn how to scale Vue state management with ref/reactive, props/emits, provide/inject and Pinia as your app grows.

State is one of the first core concepts you’ll encounter when building anything interactive with Vue. Whether it’s the text in a form, the items in a cart or the logged-in user’s profile, managing that state properly is essential for keeping your app stable, reactive and easy to scale.

Vue 3 introduced the Composition API along with a revamped reactivity system, giving developers more powerful and flexible ways to manage state than ever before. In this guide, we’ll explore how Vue 3 handles state—starting from local state with ref and reactive, to sharing data with props and provide/inject, and finally leveling up to Pinia, Vue’s official state management library. By the end, you’ll have a clear roadmap for choosing the right tool for your app’s needs.