What are some examples of using the Composition API in Vue 3?

What are some examples of using the Composition API in Vue 3?

The Composition API in Vue 3 allows for better organization of code. For example, you can create a reusable function to manage state.

Can you show me a simple example of a counter using the Composition API?

Sure! Here's a simple counter example:

import { ref } from 'vue';

export default {
  setup() {
    const count = ref(0);
    const increment = () => count.value++;
    return { count, increment };
  }
};

This creates a reactive count variable and an increment function.

How does this differ from the Options API?

The main difference is that the Composition API allows you to group related logic together, making it easier to manage and reuse code, while the Options API organizes code by options like data, methods, and lifecycle hooks.

Are there any best practices for using the Composition API?

Yes, some best practices include keeping your setup function clean, using composables for reusable logic, and leveraging TypeScript for better type safety.