How do I use the emit function in Vue 3?

How do I use the emit function in Vue 3?

In Vue 3, the emit function is used to create custom events. You can use it to communicate from a child component to a parent component.

Can you show me an example of how to use it?

Sure! In your child component, you can emit an event like this: this.$emit('myEvent', data);. In the parent component, listen for it using @myEvent='handleEvent'.

What if I want to pass multiple arguments?

You can pass multiple arguments by including them in the data object: this.$emit('myEvent', arg1, arg2); and then handle them in the parent.

Is there a way to validate the emitted data?

Yes, you can validate the data in the parent component's method that handles the event before processing it.