Form Validation made with Easiest JS Validator


This library offers a simple way to validate your forms, without complicated logic. You can bind with Vue to your data object and define a rules object and then a messages one, to display them if validation fails. The easiest way to validate your forms without 3rd party packages. Also, the library is written in ES2015.



npm i easiest-js-validator


import Validator from 'easiest-js-validator'

export default {
data () {
    return {
        errors: {},
        //form object
        profile: {},
        //rules object
        rules: {
            email: 'required,email',
            last_name: 'required,alpha',
            first_name: 'required,alpha'
        //error messages
        messages: {
            'required': 'The field is required.',
            'email': 'The field must be a valid email address.'
methods: {
    // submit the form.
    submit: function () {
        // check for validation rules.
        let validate = Validator.make(this.profile, this.rules, this.messages)

        if (Object.keys(validate).length > 0) {
            this.errors = validate
            return false
        this.errors = []
        console.log('Do something amazing!')
    // look up possibles validation errors.
    hasError: function (key) {
        return typeof this.errors[key] !== 'undefined'

A part of the form used for validation

<form class="form-horizontal" role="form" @submit.prevent="submit">
<div v-bind:class = "{ 'has-error': hasError('first_name')  }">
     <label class="col-sm-3 control-label">First Name</label>
     <div class="col-sm-9">
             <input type="text" class="form-control" placeholder="First Name"
             v-model = "profile.first_name">
             <span class="help-block" 
             v-if = "hasError('first_name')">{{ errors.first_name }}
<button type="submit">
 <i class="fa fa-paper-plane"></i>

Check the Demo, and find the source code on GitHub.