Vue.js 2 Design Patterns and Best Practices: Build enterprise-ready, modular Vue.js applications with Vuex and Nuxt by Halliday Paul

Author:Halliday, Paul [Halliday, Paul]
Language: eng
Format: azw3
Tags: COM060180 - COMPUTERS / Web / Web Services and APIs, COM051260 - COMPUTERS / Programming Languages / JavaScript, COM060080 - COMPUTERS / Web / General
Publisher: Packt Publishing
Published: 2018-03-13T16:00:00+00:00

<p class="error-message" v-if="!$v.email.email">Please enter a valid email address</p>

</div>

// Omitted

<style>

.error-message {

color: red;

}

</style>

As we can see from the representation of our $v object, the email Boolean is true when the field has a valid email address, and if not, is false. While this checks to see if email is correct, it doesn't check to see whether the field is empty. Let's add another error message that checks this based on the required validator:

<p class="error-message" v-if="!$v.email.email">Please enter a valid email address.</p>

<p class="error-message" v-if="!$v.email.required">Email must not be empty.</p>

If we wanted to, we could even take this a step further and create our own wrapper component that would render the various error messages of each field. Let's fill in the rest of our error messages along with a check to see whether the form element has been touched (is $dirty):

<div class="input">

<label for="email">Email</label>

<input

:class="{ error: $v.email.$error }"

type="email"

id="email"

@input="$v.email.$touch()"

v-model.trim="email">

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