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Form Validation made with Easiest JS Validator

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[前端(javascript) 所属分类 前端(javascript) | 发布者 店小二03 | 时间 2017 | 作者 红领巾 ] 0人收藏点击收藏
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.

Example Installation npm i easiest-js-validator

App.vue

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 }} </span> </div> </div> <button type="submit"> <i class="fa fa-paper-plane"></i> Submit </button> </form>

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

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