【angular】angular如何让传递变量参数+ng-change的使用

HTML：

  1  <div  class = "  form-group  " >
  2      <label  class = "  col-sm-2 control-label  " >商户名称</label>
  3      <div  class = "  col-sm-4  " >
  4           <input type= "  text  "   class = "  form-control   "  id= "  merchantName  "  ng-model= "  merchant.name  " 
  5                  ng-init= "  123  "  value= "  {{name}}  "  placeholder= "  请输入商户名称  "  
  6                  ng- class = "  {'red-border':merchantNameState}  "  
  7                  ng-change= "  tipState(this,'merchantNameState')  " >
  8       </div>
  9       <div  class = "  col-md-4 red-font  "  ng-show= "  merchantNameState  " >请输入商户名称</div>
 10  </div>

 

JS：

 1  $scope.tipState= function (x,stateName) {
  2         if (x.value!== ''  ){
  3             $scope[stateName]= false  ;
  4         }
  5   };

 

 

传递变量参数 ;

         $scope [ stateName ]= false

ng-change的使用

        必须定义 ng-model

 

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