The ng-switch function is not generating the desired code output

In my Ionic app, I have the following code snippet that I am currently viewing with ionic serve. However, when the initial ng-switch statement triggers... 

<span ng-switch="post.enclosure">
    <span ng-switch-when="[]">
        <p>def</p>
        <img ng-src="{{defaultImage}}" style="max-width: 80%!important;">
    </span>
    <span ng-switch-default>
        <img ng-src="{{post.enclosure.link}}" style="max-width: 90%!important;">
    </span>
</span>

Upon executing this code, I encounter a generated output - but why?

<span ng-switch="post.enclosure">
    <!-- ngSwitchWhen: [] -->
    <!-- ngSwitchDefault:  -->
    <span ng-switch-default="">
        <img style = "max-width: 90%!important;">
    </span>
    <!—end ngSwitchWhen: -->
</span>

Why is the image source not being displayed as expected?

Is there an alternative method that can be used instead of using ng-switch?

javascriptangularjsionic-frameworkng-switch

Answer №1

The reason you are seeing the second set of HTML code is because of the ng-switch-when="[]". Here is a corrected version of the code:

This code is not compatible with angular 1.5.0. Please update to angular 1.6.0

angular.module("myApp", [])
  .controller('MainCtrl', function($scope){
      $scope.postList = ['post1', 'post2'];
      $scope.defaultImage ="https://material.angularjs.org/latest/img/icons/angular-logo.svg";
      $scope.postImage = "https://itxdesign-itxdesign.netdna-ssl.com/wp-content/uploads/2014/01/wordpress-post.jpg";
  })
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.0/angular.min.js"></script>
<div ng-app="myApp">
 <div ng-controller="MainCtrl">
  <select ng-model="selectedPost" ng-options="post for post in postList">
  </select>
  <br>
 -------------------- Switching ---------------
  <div ng-switch on="selectedPost">
      <div ng-switch-when="post1|post2" ng-switch-when-separator="|">                 <img ng-src="{{postImage}}" style="max-width: 90%!important;">
      </div>
      
      <div ng-switch-default>
        <div>Default Image:</div>
        <img ng-src="{{defaultImage}}"style="max-width: 80%!important;"> 
      </div>
  </div>
</div>

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