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表单验证如何做到只在一行显示所有的错误信息?

1

表单验证

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<form name="loginForm" novalidate ng-submit="myLogin()">
            <p class="head">后台登录</p>
            <div class="unames">
                <img src="../images/name.png">
                <input type="text"
                       name="unames"
                       ng-model="params.name"
                       ng-minlength="3"
                       ng-maxlength="10"
                       placeholder="请输入用户名" required>
            </div>
            <div class="error" ng-messages="loginForm.unames.$error">
                <!--<div ng-message="required">用户名不能为空</div>-->
                <div ng-message="minlength">用户名长度至少为3</div>
                <div ng-message="maxlength">用户名长度不能超过10</div>
            </div>
            <div class="unames">
                <img src="../images/password.png">
                <input type="password"
                       name="upwd"
                       ng-model="params.pwd"
                       ng-minlength="6"
                       ng-maxlength="16"
                       placeholder="请输入密码" required>
            </div>
            <div class="error" ng-messages="loginForm.upwd.$error">
                <!--<div ng-message="required">密码不能为空</div>-->
                <div ng-message="minlength">密码长度至少为6位</div>
                <div ng-message="maxlength">密码长度不能超过16位</div>
            </div>
            <p id="hint"></p>
            <button id="login" type="submit" value="登录">登录</button>
        </form>

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关于在小程序中进行加密解密的操作？

0

1

小程序网络请求

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

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小程序如何更改wxml内的数据，如何实现双向绑定？

2

1

小程序语言基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

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如何获取到picker的index

1

小程序语言基础小程序界面构建

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

<!--pages/home/home.wxml-->
 <text>试试什么职业最适合你</text>  

<view wx:for="{{objectTheArray}}">
  
  {{item.name}}

   <picker bindchange='bindCareerChange' value='theCareerValue' range='{{item.option}}' range-key='name' >
     <view class='picker'>{{item.option[theCareerIndex].name}}</view> 
  </picker> 

</view>
<button>选好了，点击查看</button>

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在点击登陆的时候，遇到了好多不懂得东西，比如说接口的问题，还不是很能理解关于接口

1

Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

// 获取input的数值
var ID = document.getElementById('ID');
// 第二个input的数值
var password = document.getElementsByClassName('password')[0];
var show = document.getElementById('show');
// 声明一个请求
var xhr;
// 点击事件，点击的时候获取到输入框输入的数值
function NEWbutton() {
    console.log(ID.value);
    console.log(password.value);
    if (ID.value == '') {
        show.innerHTML = '请输入账号'
        return false;
    } else if (password.value == '') {
        show.innerHTML = '请输入密码'
        return false;
    } else {
        // 请求参数
        var data = 'name=' + ID.value + '&pwd=' + password.value;
        var lin = '/carrots-admin-ajax/a/login';
        xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function () {
            // 通信成功时，状态值为4
            if (xhr.readyState === 4 && xhr.status === 200) {
                var xuan = JSON.parse(xhr.responseText);
                console.log(xuan)
                if (xuan.code == 0) {
                    location.href = 'http://dev.admin.carrots.ptteng.com/#/dashboard'
                } else {
                    show.innerHTML = xuan.message;
                }
            } 
        }
    };
    xhr.open('POST', lin, true);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xhr.send(data);
    return false;
}

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js在算法中涉及到自增量会影响到变量的赋值吗？

0

1

变量函数

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

var i, temp; // temp is "rval", which may not be an actual variable. 
i = 1;
temp = i;
i = i + 1;
i = temp;
var i = 1;

i = (i++, i); // 2
var i, temp; // temp is "rval", which may not be an actual variable. 
i = 1;
temp = i;
i = i + 1;
i = i;

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如何限制只能输入数字，不能输入字母，逗号，+号等等其他非数字或空格

3

1

正则表达式

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function input() { //输入框输入事件
    let n = number.value; //变量n赋值为输入框输入的值
    let killer = document.getElementById('killer'); //获取杀手人数节点
    let villager = document.getElementById('villager'); //获取平民人数节点
   
    switch (true) { //判断输入数字进行动态人数分配
        case n >= 4 && n <= 14 || n >= 16 && n <= 17:
            killer.innerHTML = Math.floor(n / 3);
            villager.innerHTML = n - killer.innerHTML;
            break;
        case n == 15 || n == 18:
            killer.innerHTML = Math.ceil(n / 4);
            villager.innerHTML = n - killer.innerHTML;
            break;
        default: //除以上外人数为空
            killer.innerHTML = "";
            villager.innerHTML = "";
    };

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angular-ui-bootstrap两组日期选择器的选择范围

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

<div class="form-group lain">
        <label for="exampleInputEmail2">创建时间</label>
        <input ng-click="open1()" type="text" class="form-control" ng-model="dt1"
          value="{{dt1 | date:'sss'}}"
          uib-datepicker-popup  
          is-open              = "popup1.opened" 
          datepicker-options   = "dateOptions" 
          ng-required          = "true" 
          clear-text           = "清空"
          current-text         = "今天"
          close-text           = "关闭" 
          datepicker-options   ="{maxDate:(dt2)}"
          alt-input-formats    = "altInputFormats" />
      </div>
      <div class="form-group lain">
        <label for="exampleInputEmail2">——</label>
        <input ng-click="open2()" type="text" class="form-control" ng-model="dt2" 
          value="{{dt2 | date:'sss'}}"
          uib-datepicker-popup  
          is-open              = "popup2.opened" 
          datepicker-options   = "dateOptions" 
          ng-required          = "true" 
          datepicker-options   = "{minDate:(dt1)}"
          clear-text           = "清空"
          current-text         = "今天"
          close-text           = "关闭" />
      </div>

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在ajax设置了type为post。为什么提交后显示405不支持get？

1

跨域

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function login() {
    var name = $("input").eq(0).val();
    var pwd = $("input").eq(1).val();
    if (name == "") {
        $(".prompt").text("用户名不能为空");
        $(".prompt").css("color", "red");
        return false;
    }
    if (pwd == "") {
        $(".prompt").text("密码不能为空");
        $(".prompt").css("color", "red");
        return false;
    }
    $(".prompt").css("color", "black");
    var userTemp = "name=" + name + "&pwd=" + pwd;
    console.log(userTemp);
    $.ajax({
        type: "POST",
        url: "/carrots-admin-ajax/a/login",
        data: userTemp,
        dataType: "json",
        success: function (result, status, xhr) {
            if (result.message == "success") {
                $(".prompt").text("登陆成功");
                location.href = "http://dev.admin.carrots.ptteng.com/a/login"
            } else {
                $(".prompt").text(result.message);
            }
        },
        error: function (xhr) {
            alert(xhr.status);
        }
    })
}

$(function () {
    $(".login").on("click", login)
})

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在路由文件之中如何配置懒加载

1

angular基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

myApp.config(function($stateProvider, $urlRouterProvider) {
  $urlRouterProvider.when("", "home/hello");
  $stateProvider
    // 登录页
    .state("login", { url: "/login", templateUrl: "./html/Login.html" })
    // 列表主页
    .state("home", {
      url: "/home",
      templateUrl: "./html/Home.html",
      controller: "homeCtrl",
      resolve: {
        loadMyCtrl: function($ocLazyLoad) {
          return $ocLazyLoad.load(["./JS/Home.js", "./style/Home.css"]);
        }
      }
    })