How do I use emit in the setup function of Vue 3?

How do I use emit in the setup function of Vue 3?

In Vue 3, you can use the emit function inside the setup function to emit events. First, you need to define it as a parameter in the setup function.

Can you show me a code example?

Sure! Here's a simple example:

import { defineComponent } from 'vue';

export default defineComponent({
  setup(props, { emit }) {
    const handleClick = () => {
      emit('myEvent', 'Hello from setup!');
    };
    return { handleClick };
  }
});

What is the purpose of emitting events?

Emitting events allows child components to communicate with their parent components, enabling a more organized and reactive architecture.

Are there any best practices for using emit?

Yes, it's best to use clear and descriptive event names, and to document the events your component emits for better maintainability.