Question

如果我使用＆＃34;这个＆＃34;代码可以正常工作公开变量的方法。但是，在代码中包含范围之后。该页面仅显示控制器范围之外的元素。

UiAtomator

App.js：

<!DOCTYPE html>
<html lang="en" ng-app="myApp">

<head>
     <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- The above 3 meta tags *must* come first in the head; any other head
         content must come *after* these tags -->
    <title>Ristorante Con Fusion: Menu</title>
        <!-- Bootstrap -->
    <link href="bower_components/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="bower_components/bootstrap/dist/css/bootstrap-theme.min.css" rel="stylesheet">
    <link href="bower_components/font-awesome/css/font-awesome.min.css" rel="stylesheet">
    <link href="styles/bootstrap-social.css" rel="stylesheet">
    <link href="styles/mystyles.css" rel="stylesheet">

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
</head>

<body>

    <div class="container">
        <div class="row row-content" ng-controller="myctrl">
            <div class="col-xs-12">
                <div class="tab-content">
            <ul class="nav nav-tabs" role="tablist">
                    <li role="presentation" ng-class="{active: isSelected(1)}">
                    <a href="" ng-click="select(1)"
                     aria-controls="all menu"
                     role="tab">The Menu</a></li>
                    <li role="presentation" ng-class="{active: isSelected(2)}">
                    <a href="" ng-click="select(2)"
                     aria-controls="appetizers"
                     role="tab">Appetizers</a></li>
                    <li role="presentation" ng-class="{active: isSelected(3)}">
                    <a href="" ng-click=" select(3)"
                     aria-controls="mains"
                     role="tab">Mains</a></li>
                    <li role="presentation" ng-class="{active: isSelected(4)}">
                    <a href="" ng-click=" select(4)"
                     aria-controls="desserts"
                     role="tab">Desserts</a></li>
                </ul>
                </div>
            <ul>
            <li class="media" ng-repeat="dish in dishes|filter:filtText">
                    <div class="media-left media-middle">
                        <a href="#">
                        <img class="media-object img-thumbnail"
                         ng-src={{dish.image}} alt="Uthappizza">
                        </a>
                    </div>
                    <div class="media-body">
                        <h2 class="media-heading">{{dish.name}}
                         <span class="label label-danger">{{dish.label}}</span>
                         <span class="badge">{{dish.price | currency}}</span></h2>
                          <p>{{dish.description}}</p>
                        <p>Comment: {{dish.comment}}</p>
                        </div>
                </li>
                </ul>
            </div>
            </div>
        </div>

<script src="bower_components/angular/angular.min.js"></script>
<script src="scripts/app.js"></script>
<script src="scripts/controller.js"></script>
</body>

</html>

Controller.js：

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

Answer 1

您正在覆盖/重新定义行中的变量：

$scope.dishes = dishes;

Answer 2

删除以下代码行

$scope.dishes = dishes;

您在此处执行的操作是将$scope.dishes的值设置为等于变量dishes的值，但dishes未在任何地方初始化或定义，因此您可能会覆盖您使用值undefined创建的菜肴数组。

$ scope在Angular js中不起作用

2 个答案: