javascript - 使用indexOf查看AngularJS中的对象是否存在匹配

Question

我想循环遍历应用程序编号数组以查看是否使用indexOf 匹配。

目前我的数组看起来像..

数组:

"applications":[  
         "123456",
         "224515",
         "658454",
         "784123"
      ]

我的 Controller :

$scope.hasApplicationNumber = function (appNo) {
        var applicationsArray = applications;
        return applicationsArray.indexOf(appNo);
      }

html:

<span ng-if="hasApplicationNumber(784123)">Its a Match!</span>

Answer 1

DEMO

var myApp = angular.module('myApp',[]);

myApp.controller('MyCtrl', function($scope) {
    $scope.applications = [  
         "123456",
         "224515",
         "658454",
         "784123"
      ];

    $scope.hasApplicationNumber = function (appNo) {
        var res = $scope.applications.filter(item => { return item.indexOf(appNo) != -1; });
        return (res.length) ? true : false;
      }  
});

<div ng-app="myApp" ng-controller="MyCtrl">
  <span ng-if="hasApplicationNumber(784123)">Its a Match!</span>
</div>