Angular validation function implementation steps-JS Tutorial-php.cn

Angular validation function implementation steps

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Release： 2018-04-14 09:26:38

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This time I will bring you the steps to implement the Angular verification function. What are the precautions for implementing the Angular verification function? The following is a practical case, let's take a look.

The complete example code is as follows:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>angular验证功能</title>
    <script src="angular.min.js"></script>
    <style>
      input{
        display: block;
      }
      ul li{
        color: red;
      }
    </style>
    <script>
      angular.module("myapp",[])
      .controller("demoC",function($scope){
        $scope.datas = [{
            id: 10011120,
            name: "iphoneX",
            num: 99
          },
          {
            id: 10011121,
            name: "华为mate10",
            num: 20
          },
          {
            id: 10011122,
            name: "vivoR12",
            num: 55
          }
        ]; //定义一个数组
        $scope.save=function(){
          //创建一个存放错误信息数组
          $scope.error_val=[];
          var reg_id=/^\d{8,8}$/; //只能8位数字
          if(!reg_id.test($scope.id)){
            $scope.error_val.push("资产编号格式，必须为数字，且长度为8位");
          }
          //资产名称
          if($scope.name==undefined||$scope.name==""){
            $scope.error_val.push("资产名称不能为空!");
          }else{
            for(var i in $scope.datas){
              if($scope.name==$scope.datas[i].name){
                $scope.error_val.push("资产名称已经存在");
                break; //结束循环,已经查找到资产名称不合法
              }
            }
          }
          //资产数量
          var reg_num=/^\d{1,}$/; //只能8位数字
          if(!reg_num.test($scope.num)){
            $scope.error_val.push("资产编号数量，必须为数字");
          }else{
            if($scope.num<=0){
              $scope.error_val.push("资产编号数量必须大于0");
            }
          }
          //何时添加进行,何时不添加
          if($scope.error_val.length==0){
            $scope.datas.push({
              id:$scope.id,
              name:$scope.name,
              num:$scope.num
            });
          }
        }
      })
    </script>
  </head>
  <body ng-app="myapp" ng-controller="demoC">
    <table border="1px solid">
      <tr>
        <td>资产编号</td>
        <td>资产名称</td>
        <td>资产数量</td>
      </tr>
      <tr ng-repeat="d in datas">
        <td>{{d.id}}</td>
        <td>{{d.name}}</td>
        <td>{{d.num}}</td>
      </tr>
    </table>
    <p>
      <form>
        资产编号<input ng-model="id" />
        资产名称<input ng-model="name" />
        资产数量<input ng-model="num" />
        <p>
          <ul>
            <li ng-repeat="e in error_val">
              {{e}}
            </li>
          </ul>
        </p>
        <button ng-click="save()">
        资产录入  
        </button>
      </form>
    </p>
  </body>
</html>

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I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!