微信小程序实现基于三元运算验证手机号/姓名功能示例

<view class="fl_form" style="position:relative;padding-top:20rpx;">
 <text><text style="color:red;padding-right:10rpx">*</text>您的姓名</text>
 <input type="text" placeholder='请输入您的姓名' value="{{trueName}}" bindblur='userNameInput'></input>
 <text class="{{isName=='1'?'show':'hidden'}}">姓名不能为空</text>
</view>
<view class="fl_form">
 <text><text style="color:red;padding-right:10rpx">*</text>所属部门</text>
 <input type="text" placeholder='请输入所属部门' value="{{deparment}}" bindblur='userBranchInput'></input>
 <text class="{{isDeparment=='1'?'show':'hidden'}}">部门不能为空</text>
</view>
<view class="fl_form" style="padding-bottom:20rpx;">
 <text><text style="color:red;padding-right:10rpx">*</text>联系电话</text>
 <input type="number" placeholder='请输入联系电话' maxlength='11' value="{{phone}}" bindblur='userTellInput'></input>
 <text class="{{isPhone=='1'?'show':'hidden'}}" style="width:35%">请输入有效的手机号</text>
</view>

data: {
 trueName: "",
 deparment: "",
 phone: "",
 isName: "",
 isDeparment: "",
 isPhone: "",
 },
 //事件处理函数
 userNameInput: function (e) {
 //用户姓名
 if (e.detail.value) {
 console.log(e.detail.value)
 this.setData({
 isName: '',
 trueName: e.detail.value
 })
 } else {
 this.setData({
 isName: '1'
 })
 }
 },
 userBranchInput: function (e) {
 //所属部门
 if (e.detail.value) {
 this.setData({
 isDeparment: '',
 deparment: e.detail.value
 })
 } else {
 this.setData({
 isDeparment: '1'
 })
 }
 },
 userTellInput: function (e) {
 //联系电话
 if (/^1[3|4|5|6|7|8|9]\d{9}$/.test(e.detail.value)) {
 this.setData({
 phone: e.detail.value,
 isPhone: ""
 })
 } else {
 this.setData({
 isPhone: "1"
 })
 }
 }