How can I handle errors in Vue.js using Vuelidate?

How can I handle errors in Vue.js using Vuelidate?

You can handle errors in Vue.js using Vuelidate by defining validation rules for your form inputs. When a user submits the form, you can check if the inputs are valid and display error messages accordingly.

Can you show me a code example?

Sure! Here's a simple example:

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

export default {
  validations: {
    name: { required },
    password: { required, minLength: minLength(6) }
  },
  methods: {
    submit() {
      this.$v.$touch(); // Mark all fields as touched
      if (this.$v.$invalid) {
        // Handle the error
        console.log('Form is invalid!');
      } else {
        // Proceed with form submission
        console.log('Form submitted!');
      }
    }
  }
};

This code sets up validations for a name and password field.

What if I want to customize the error messages?

You can customize error messages by using computed properties or methods to return specific messages based on the validation state. For example:

computed: {
  nameError() {
    if (!this.$v.name.$pending && !this.$v.name.required) {
      return 'Name is required!';
    }
    return '';
  }
}