How to implement form verification in WeChat mini program

This article mainly introduces the form verification function of WeChat applet, and analyzes the view and logic operation skills involved in completing the form verification function of WeChat applet in the form of a complete example. Friends who need it can refer to it

This article describes the form verification function of the WeChat applet with an example. Share it with everyone for your reference, the details are as follows:

Wxml

<form bindsubmit="formSubmit" bindreset="formReset">
 <input name="name" class="{{whoClass==&#39;name&#39;?&#39;placeholderClass&#39;:&#39;inputClass&#39;}}" placeholder="请填写您的姓名" type="text" confirm-type="next" focus="{{whoFocus==&#39;name&#39;?true:false}}" bindblur="nameBlurFocus" />
 <radio-group name="gender" bindchange="radioChange">
  <radio value="0" checked />女士
  <radio value="1" />先生
 </radio-group>
 <input name="mobile" class="{{whoClass==&#39;mobile&#39;?&#39;placeholderClass&#39;:&#39;inputClass&#39;}}" type="number" maxlength="11" placeholder="请填写您的手机号" bindblur="mobileBlurFocus" focus="{{whoFocus==&#39;mobile&#39;?true:false}}" />
 <input name="company" class="{{whoClass==&#39;company&#39;?&#39;placeholderClass&#39;:&#39;inputClass&#39;}}" placeholder="公司名称" type="text" confirm-type="next" focus="{{whoFocus==&#39;company&#39;?true:false}}" />
 <input name="client" class="{{whoClass==&#39;client&#39;?&#39;placeholderClass&#39;:&#39;inputClass&#39;}}" placeholder="绑定客户" type="text" confirm-type="done" focus="{{whoFocus==&#39;client&#39;?true:false}}" />
 <button formType="submit">提交</button>
</form>
<loading hidden="{{submitHidden}}">
 正在提交...
</loading>

app.js

import wxValidate from 'utils/wxValidate'
App({
  wxValidate: (rules, messages) => new wxValidate(rules, messages)
})

news.js

var appInstance = getApp()
//表单验证初始化
onLoad: function () {
    this.WxValidate = appInstance.WxValidate(
      {
        name: {
          required: true,
          minlength: 2,
          maxlength: 10,
        },
        mobile: {
          required: true,
          tel: true,
        },
        company: {
          required: true,
          minlength: 2,
          maxlength: 100,
        },
        client: {
          required: true,
          minlength: 2,
          maxlength: 100,
        }
      }
      , {
        name: {
          required: '请填写您的姓名姓名',
        },
        mobile: {
          required: '请填写您的手机号',
        },
        company: {
          required: '请输入公司名称',
        },
        client: {
          required: '请输入绑定客户',
        }
      }
    )
  },
  //表单提交
   formSubmit: function (e) {
     //提交错误描述
    if (!this.WxValidate.checkForm(e)) {
      const error = this.WxValidate.errorList[0]
      // `${error.param} : ${error.msg} `
      wx.showToast({
        title: `${error.msg} `,
        image: '/pages/images/error.png',
        duration: 2000
      })
      return false
    }
    this.setData({ submitHidden: false })
    var that = this
    //提交
    wx.request({
      url: '',
      data: {
        Realname: e.detail.value.name,
        Gender: e.detail.value.gender,
        Mobile: e.detail.value.mobile,
        Company: e.detail.value.company,
        client: e.detail.value.client,
        Identity: appInstance.userState.identity
      },
      method: 'POST',
      success: function (requestRes) {
        that.setData({ submitHidden: true })
        appInstance.userState.status = 0
        wx.navigateBack({
          delta: 1
        })
      },
      fail: function () {
      },
      complete: function () {
      }
    })
  }

The above is what I compiled for everyone Yes, I hope it will be helpful to everyone in the future.

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