How do I use custom props in Vue 3?

How do I use custom props in Vue 3?

In Vue 3, you can define custom props in your component by using the props option. You can specify the type and default values.

Can you give me an example of a component with custom props?

Sure! Here's a simple example:

export default {
  props: {
    title: {
      type: String,
      required: true
    },
    likes: {
      type: Number,
      default: 0
    }
  }
}

This component accepts a title prop and a likes prop with a default value.

What happens if I don't provide a required prop?

If you don't provide a required prop, Vue will issue a warning in the console during development, and the component may not function as expected.

Can I use custom validation for props?

Yes, you can use a custom validator function in the prop definition to enforce specific validation rules.