angularjs - 在ControllerAs AngularJS中调用子函数

Question

嘿，我是 angularjs 的新手，我在 angularjs 中使用 controlleras 样式，因为代码是可展示的和网络的。我的问题是在控制器中调用子函数我的代码如下

 //AngularJS CODE
      (function(){
         'use strict';

         angular.module('mAPP', ['ngMaterial']);

         function helpM(){
            var vm = this; 
            vm.SaveM = function(){
                alert('Save Me Now');
            }
         }

        function SaveCTRL(){
          var vm = this; 

          vm.nineOne = helpM.SaveM;
        }

        angular.module('mAPP')
                .controller('SaveCTRL', [SaveCTRL]); 

      })();

//HTML代码

     <div ng-controller="SaveCTRL as main" layout="column" ng-cloak="" class="md-inline-form" ng-app="mAPP">


     <md-button class="md-raised md-primary" ng-click="main.nineOne()">Submit</md-button>

     </div>

但是警报没有执行，非常感谢:(

score 0 · Accepted Answer

你必须做一个实例helpM否则this将是undefined

(function() {
  'use strict';

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

  function helpM() {
    var vm = this;
    vm.SaveM = function() {
      alert('Save Me Now');
    }
    return vm;
  }


  function SaveCTRL() {
    var vm = this;

    vm.nineOne = new helpM().SaveM;

    return vm;
  }

  angular.module('myApp')
    .controller('SaveCTRL', SaveCTRL);

})();

<body ng-app="myApp">
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
  <div ng-controller="SaveCTRL as main" layout="column" ng-cloak="" class="md-inline-form">


    <md-button class="md-raised md-primary" ng-click="main.nineOne()">Submit</md-button>

  </div>
</body>

score 0 · Accepted Answer

您需要实例化 helpM 类：

代替：

vm.nineOne = helpM.SaveM

至：

var helpObj = new helpM();
vm.nineOne = helpObj.SaveM.bind(helpObj);

angularjs - 在ControllerAs AngularJS中调用子函数

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