How does Vue 3 handle reactivity with Dexie.js?

How does Vue 3 handle reactivity with Dexie.js?

Vue 3 uses a reactivity system that can work seamlessly with Dexie.js, a wrapper for IndexedDB. When you fetch data from Dexie, you can use Vue's reactive properties to automatically update your UI when the data changes.

Can you give me an example of how to set this up?

Sure! First, you would create a reactive property in your Vue component. Then, you can fetch data from Dexie and assign it to that property. For instance:

import { ref } from 'vue';
import { db } from './db'; // your Dexie instance

export default {
  setup() {
    const items = ref([]);

    db.items.toArray().then(data => {
      items.value = data;
    });

    return { items };
  }
};

What happens if the data in Dexie changes?

If the data in Dexie changes, you can set up a listener to update your Vue reactive property. For example, you can use Dexie's table.on('changes', ...) method to react to changes in the database and update your Vue state accordingly.

Are there any performance considerations I should be aware of?

Yes, while Vue's reactivity is efficient, frequent updates from Dexie can lead to performance issues. It's best to batch updates or use computed properties to minimize re-renders.