vue表单自定义校验规则介绍

<div id="app">
<el-form :model="ruleForm2" :rules="rules2" ref="ruleForm2" label-width="100px" class="demo-ruleForm">
 <el-form-item label="密码" prop="pass">
 <el-input type="password" v-model="ruleForm2.pass" auto-complete="off"></el-input>
 </el-form-item>
 <el-form-item label="确认密码" prop="checkPass">
 <el-input type="password" v-model="ruleForm2.checkPass" auto-complete="off"></el-input>
 </el-form-item>
 <el-form-item label="年龄" prop="age">
 <el-input v-model.number="ruleForm2.age"></el-input>
 </el-form-item>
 <el-form-item>
 <el-button type="primary" @click="submitForm('ruleForm2')">提交</el-button>
 <el-button @click="resetForm('ruleForm2')">重置</el-button>
 </el-form-item>
</el-form>
</div>

var Main = {
 data() {
 var checkAge = (rule, value, callback) => {
 if (!value) {
 return callback(new Error('年龄不能为空'));
 }
 setTimeout(() => {
 if (!Number.isInteger(value)) {
 callback(new Error('请输入数字值'));
 } else {
 if (value < 18) {
 callback(new Error('必须年满18岁'));
 } else {
 callback();
 }
 }
 }, 1000);
 };
 var validatePass = (rule, value, callback) => {
 if (value === '') {
 callback(new Error('请输入密码'));
 } else {
 if (this.ruleForm2.checkPass !== '') {
 this.$refs.ruleForm2.validateField('checkPass');
 }
 callback();
 }
 };
 var validatePass2 = (rule, value, callback) => {
 if (value === '') {
 callback(new Error('请再次输入密码'));
 } else if (value !== this.ruleForm2.pass) {
 callback(new Error('两次输入密码不一致!'));
 } else {
 callback();
 }
 };
 return {
 ruleForm2: {
 pass: '',
 checkPass: '',
 age: ''
 },
 rules2: {
 pass: [
 { validator: validatePass, trigger: 'blur' }
 ],
 checkPass: [
 { validator: validatePass2, trigger: 'blur' }
 ],
 age: [
 { validator: checkAge, trigger: 'blur' }
 ]
 }
 };
 },
 methods: {
 submitForm(formName) {
 this.$refs[formName].validate((valid) => {
 if (valid) {
 alert('submit!');
 } else {
 console.log('error submit!!');
 return false;
 }
 });
 },
 resetForm(formName) {
 this.$refs[formName].resetFields();
 }
 }
 }
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')

<template>
 <div class="taxi-appointment-dairen">
 <el-form :model="ruleForm" :rules="rules" ref="ruleForm">
 <div class="dairen-input">
 <el-form-item>
 <el-input
 v-model="ruleForm.name"
 placeholder="请输入乘车人姓名（选填）">
 </el-input>
 </el-form-item>
 <i class="fa fa-user fa-2x"></i>
 </div>
 <div class="dairen-input">
 <el-form-item prop="number">
 <el-input
 v-model="ruleForm.number"
 placeholder="请输入乘车人手机号码">
 </el-input>
 </el-form-item>
 <i class="fa fa-mobile-phone fa-2x"></i>
 </div>
 <div class="popover-btn">
 <el-button @click="submitForm('ruleForm')" type="primary">确定</el-button>
 </div>
 </el-form>
 </div>
</template>

<script>
 export default {
 data () {
 var ruleNumber = (rule, value, callback) => {
 var myreg = /^[1][3,4,5,7,8][0-9]{9}$/;
 if (value === '') {
 callback(new Error('请输入乘车人手机号码'));
 } else if(!myreg.test(value)) {
 callback(new Error('请输入正确乘车人手机号码'));
 }else {
 callback(); //重点在这 如果在验证通过后不添加callback()函数在验证时是条件会为false
 }
 };
 return {
 ruleForm: {
 name: '',
 number: ''
 },
 rules: {
 number: [{ validator: ruleNumber, trigger: 'blur' }]
 }
 }
 },
 methods: {
 submitForm (formName) {
 this.$refs[formName].validate((valid) => {
 if (valid) { //在验证通过时时不返回callback()时 这一步进不来
 console.log(valid)
 } else {
 return false
 }
 });
 }
 }
 }
</script>