How can I use the setup script in Vue 3 for advanced features?

How can I use the setup script in Vue 3 for advanced features?

The setup script in Vue 3 allows you to use Composition API features more effectively. What specific advanced features are you interested in?

I'm particularly interested in using reactive properties and computed properties.

You can create reactive properties using the ref or reactive functions. For computed properties, use the computed function. Would you like a code example?

Yes, please provide a code example for both.

Sure! Here's a simple example:

import { ref, computed } from 'vue';

export default {
  setup() {
    const count = ref(0);
    const doubleCount = computed(() => count.value * 2);

    return { count, doubleCount };
  }
};

This creates a reactive count and a computed doubleCount.