What is Vuelidate and how do I use it in Vue.js?

What is Vuelidate and how do I use it in Vue.js?

Vuelidate is a model-based validation library for Vue.js that allows you to validate form inputs easily. You can use it by installing the package and defining validations in your Vue components.

Can you show me a simple example of how to implement Vuelidate?

Sure! First, install Vuelidate using npm. Then, in your component, import it and define your validations like this:

import { required, minLength } from 'vuelidate/lib/validators';

export default {
  validations: {
    name: { required, minLength: minLength(3) }
  }
};

This will validate that the 'name' field is required and has a minimum length of 3 characters.

How do I display validation errors in my template?

You can display validation errors by checking the validation state in your template. For example:

<input v-model="name" />
<span v-if="!$v.name.$pending && !$v.name.required">Name is required.</span>
<span v-if="!$v.name.$pending && !$v.name.minLength">Name must be at least 3 characters long.</span>

Is Vuelidate compatible with Vue 3?

Yes, Vuelidate is compatible with Vue 3. Just make sure to install the latest version of Vuelidate that supports Vue 3.