Javascript 如何在ng中单独重复$watch输入并将结果附加到angular js中的特定行？_Javascript_Angularjs_Indexing_Angularjs Ng Repeat_Angularjs Watch

Javascript 如何在ng中单独重复$watch输入并将结果附加到angular js中的特定行？

javascript angularjs indexing

Javascript 如何在ng中单独重复$watch输入并将结果附加到angular js中的特定行？,javascript,angularjs,indexing,angularjs-ng-repeat,angularjs-watch,Javascript,Angularjs,Indexing,Angularjs Ng Repeat,Angularjs Watch,我有两个输入字段b_price和s_price在ng repeat中。我需要观察这两个模型中的变化并添加估计值。我的代码片段： html {{list.symbol} {{list.todays{u rate} {{估计值} js var-app=angular.module（'testthis'，[]）； app.controller（'testCtrl'，函数（$scope，$http）{ $scope.testList={}； $scope.testList.lists=[{id:1，

我有两个输入字段b_price和s_price在ng repeat中。我需要观察这两个模型中的变化并添加估计值。我的代码片段： html


{{list.symbol}
{{list.todays{u rate}
{{估计值}

var-app=angular.module（'testthis'，[]）；
app.controller（'testCtrl'，函数（$scope，$http）{
$scope.testList={}；
$scope.testList.lists=[{id:1，符号：“assas”，总计：123}，
{编号：2，文号：“as”，总数：103}]；
对于（var i=0；i
<body ng-app="testthis" ng-controller="testCtrl">
    <table>
    <tr  ng-repeat="list in testList.lists track by $index">

                <td>{{list.symbol}}</td>
                <td>{{list.todays_rate}}</td>
                <td><input type="text" ng-model="testList.b_price"></td>
                <td><input type="text" ng-model="testList.s_price"></td>
                <td>{{estimated}}</td>

            </tr>
                    </table>
        </body>

var app = angular.module('testthis', []);
app.controller('testCtrl', function($scope, $http) {

  $scope.testList ={};
    $scope.testList.lists = [{id: 1,symbol: "assas", total: 123},
                                {id: 2,symbol: "as", total: 103}];



 for (var i=0; i<$scope.testList.lists.length; i++){

  $scope.estimated =0;
  $scope.$watch('testList.b_price + testList.s_price', function() {
    console.log('watch');
    if ($scope.testList.b_price){
      console.log('as');
      $scope.testList.s_price = "";
      $scope.estimated = 100 - $scope.testList.b_price;
    }else if ($scope.testList.s_price){
      $scope.testList.b_price = "";
      $scope.estimated = $scope.testList.s_price - 100;
    } 
  });
 }

});