Vue 3 brings a new way to write code with the Composition API. You see how it works step by step. This course guides you from the basics to real examples you can use in your own apps.
What You Learn
You learn how to write clear logic with the Composition API. You also see how it differs from the Options API you may know already.
- How to start using the Composition API
- What a ref is and how it behaves
- The difference between ref and reactive
- How to use props, attrs, slots, and emit
- How to watch data and act on changes
- How to use lifecycle hooks
- How provide and inject work
- How to cut boilerplate with the setup attribute
- How to use async and await in setup
- How to write reusable composables
- How to use composables for shared state
Course Guide
Key Concepts
You start by learning how Vue tracks state. You work with refs and reactive objects. You see when each tool makes sense.
Component Features
You learn how to pass data in and out of components. You use props and emit to keep code clear and easy to follow.
Logic and Reactivity
You watch for data changes and run code when these changes happen. You also learn how to use lifecycle hooks for setup and cleanup.
Composables
You build small functions that hold shared logic. You reuse these functions across many components. This helps keep your code simple.
Requirements
You should know JavaScript and ES6 basics like arrow functions and imports. You also need a basic grasp of Vue and the Options API.
