How can I create custom validators for props in Vue.js?

How can I create custom validators for props in Vue.js?

In Vue.js, you can create custom validators for props by defining a function that checks the prop's value. This function should return true if the value is valid and false otherwise.

Can you show me an example of a custom validator?

Sure! Here's a simple example:

props: {
  age: {
    type: Number,
    validator: function(value) {
      return value >= 18;
    }
  }
}

This validator checks if the age prop is 18 or older.

What happens if the validation fails?

If the validation fails, Vue will issue a warning in the console, and the component will not receive the invalid prop value.

Can I use multiple validators for a single prop?

Yes, you can use multiple validators by combining them in a single function or by creating an array of validator functions.