How can I create custom validation rules in Vuelidate for Vue.js forms?

How can I create custom validation rules in Vuelidate for Vue.js forms?

You can create custom validation rules in Vuelidate by defining a function that returns a boolean value based on your validation logic.

Can you show me an example of a custom rule?

Sure! Here's a simple example: you can create a rule that checks if a value is an even number. Define it like this: isEven: value => value % 2 === 0.

How do I integrate this custom rule into my form?

You can integrate it by adding it to your validation object in the component. For example: validations: { numberField: { isEven } }.

What if I want to display a custom error message?

You can use the $error property to check for validation errors and display a custom message in your template.