如何在角度js中應用ng-if

Question

我正在從表單中的服務中檢索數據。

[["Sql Injection",0],["Proxy Abuse",0],["Spam",0],["Information and Source Code Leakage",0],["System Command Injection",0],["Cross-Site Request Forgery",0],["Session Hijacking",0],["PHP Injection",0],["Request Anomaly",0],["Local/Remote File Inclusion",0],["Cross-Site Scripting",0]].

現在我希望如果每種攻擊類型的計數為零，則不顯示任何內容。 我如何通過ng-if來處理這個問題。 模板代碼：

<div class="col-md-6 b-r b-light no-border-xs" ng-show="webSummary[0]">
    <highchart id="chart1" config="webConfig" class="span9" ></highchart>           
</div>

Answer 1

你可以做：

 angular .module('MyApp', []) .controller('MyController', function($scope) { $scope.webSummary = [["Sql Injection",0],["Proxy Abuse",0],["Spam",0],["Information and Source Code Leakage",0],["System Command Injection",0],["Cross-Site Request Forgery",0],["Session Hijacking",0],["PHP Injection",0],["Request Anomaly",0],["Local/Remote File Inclusion",0],["Cross-Site Scripting",0]]; }); 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="MyApp" ng-controller="MyController"> <div class="col-md-6 br b-light no-border-xs" ng-repeat="ws in webSummary" ng-if="ws[1]"> <highchart id="chart1" config="webConfig" class="span9"></highchart> </div> </div> 

Answer 2

你可以做

<div class="col-md-6 b-r b-light no-border-xs" ng-if="checkAttackCount()">
    <highchart id="chart1" config="webConfig" class="span9" ></highchart>           
</div>

在控制器中

function checkAttackCount(){    
  for(var i=0;i<webSummary.length;i++){
    if(webSummary[i][1]>0){
      return true;
    }
  }       
  return false;
}