What are the steps to utilize vee validate in conjunction with a textarea?

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Here are the steps to utilize vee-validate in conjunction with a textarea:

1. Install the vee-validate package using npm install vee-validate.

2. Import the necessary libraries in your component script:

import { ValidationObserver, ValidationProvider } from 'vee-validate';
import { required } from 'vee-validate/dist/rules';
import { extend } from 'vee-validate'; 

1. Register the vee-validate plugin in your main.js or entry point according to the documentation.

2. Register the required rule with vee-validate:

extend('required', { ...required, message: 'This field is required' });

1. In your template, wrap your form in the ValidationObserver component:

<ValidationObserver>
  <form>
    <!-- your form fields -->
  </form>
</ValidationObserver>

1. Add a ValidationProvider block around your textarea input, and specify the rule you want to apply:

<ValidationProvider rules="required" name="textarea">
  <textarea v-model="text"></textarea>
  <span slot="error">This field is required</span>
</ValidationProvider>

1. You can add other validation rules as you need them. For example:

<ValidationProvider rules="required|min:10|max:100" name="textarea">
  <textarea v-model="text"></textarea>
  <span slot="error">Please enter between 10 and 100 characters.</span>
</ValidationProvider>

1. Finally, you can submit the form and check if it is valid using the ValidationObserver component's validate() method:

<ValidationObserver @submit.prevent="onSubmit">
  <form>
    <!-- your form fields -->
    <button type="submit" :disabled="errors.any()">Submit</button>
  </form>
</ValidationObserver>

// method in component script
methods: {
  onSubmit () {
    this.$refs.observer.validate().then(success => {
      if (success) {
        // form is valid, do something
      } else {
        // form is invalid, show error messages
      }
    });
  }
}

That's it! You should now be able to use vee-validate with a textarea input in your Vue.js app.