javascript - angularjs 避免 ngrepeat 中的空字段

Question

删除|后该功能似乎没问题货币:“£” 过滤器。是否有任何选项可以仅显示当前用户数量？

(function() {
  var app = angular.module('myApp', []);
  app.controller('roomController', function($scope) {
    $scope.users = [{
      id: 1,
      firstname: 'member',
      spent: 206.98
    }, {
      id: 2,
      firstname: 'member',
      spent: 12.23
    }, {
      id: 3,
      firstname: 'member',
      spent: 302.12
    }, {
      id: 4,
      firstname: 'member',
      spent: 198.21
    }, {
      id: 5,
      firstname: 'member',
      spent: 85.85
    }];
    $scope.currentuser = 4;
  });
})();

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
  <div ng-controller="roomController">
    <h2 ng-repeat="user in users"><i class="fa fa-gbp"></i> {{ user.id === currentuser ? user.spent: '' | currency:"£"}}</h2>
  </div>
</div>

Answer 1

如果我理解正确的话，你不需要三元运算符，而是输入 ng-if在 <h2>这正在重复。

见下文:

(function() {
  var app = angular.module('myApp', []);
  app.controller('roomController', function($scope) {
    $scope.users = [{
      id: 1,
      firstname: 'member',
      spent: 206.98
    }, {
      id: 2,
      firstname: 'member',
      spent: 12.23
    }, {
      id: 3,
      firstname: 'member',
      spent: 302.12
    }, {
      id: 4,
      firstname: 'member',
      spent: 198.21
    }, {
      id: 5,
      firstname: 'member',
      spent: 85.85
    }];
    $scope.currentuser = 4;
  });
})();

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
  <div ng-controller="roomController">
    <h2 ng-repeat="user in users" ng-if="user.id === currentuser"><i class="fa fa-gbp"></i> {{ user.spent | currency:"£"}}</h2>
  </div>
</div>