如何使用ng-hide仅显示基于angularjs中特定条件的选定div元素

Question

目的是根据我的喜好显示或隐藏下面的div元素

<div ng-repeat="data_training in data.training track by $index">
                                        <h4 ng-hide="data_training.list == [] && data_training.note == '' ">WHAT TYPE OF TRAINING IS REQUIRED TO START THIS VENTURE</h4> 
                                        {{data_training.note}}
                                            <ul ng-repeat="data_training_lists in data_training.list track by $index ">
                                                <li>
                                                    {{data_training_lists}}
                                                </li>
                                            </ul>
                                    </div>

这只是我的index.html的一个片段，下面是我的json数据的一个片段

 "training": [
      {
        "note": "",
        "list": [
          "Agricultural extension officers ",
          "Agricultural shops ",
          "Non Government Organisations, Community Based Organisations ",
          "Other farmers "
        ]
      }
    ],

如果且仅当training.note或training.list具有价值时，希望显示h4元素。 提前致谢

Answer 1

只需检查长度是否> 0：

<h4 ng-hide="data_training.list.length && data_training.note.length">WHAT TYPE OF TRAINING IS REQUIRED TO START THIS VENTURE</h4>

Answer 2

尝试这个

<h4 ng-if="data_training.list.length && data_training.note.length">WHAT TYPE OF TRAINING IS REQUIRED TO START THIS VENTURE</h4>

或与ng-show

<h4 ng-show="data_training.list.length && data_training.note.length">WHAT TYPE OF TRAINING IS REQUIRED TO START THIS VENTURE</h4>

或搭配ng-hide

<h4 ng-hide="data_training.list.length && data_training.note.length">WHAT TYPE OF TRAINING IS REQUIRED TO START THIS VENTURE</h4>

我更喜欢使用ng-if不是ng-show

ng-if指令从页面中删除内容，而ng-show / ng-hide使用CSS display属性隐藏内容。