Question

我正在尝试用字符串“ Yup”和“”替换表中的数据：如果字符串等于“ yes”，则显示“ Yup”，否则不显示，对不起，我是新手，我看到了一些解决方案，但我尝试了一下，但没有用：{{ person.value ? "Yup":" "}} ..请提供任何帮助

angular.module('selectExample', [])
  .controller('ExampleController', ['$scope', function($scope) {
    $scope.register = {
      value: [
        {value:"Yes"},{value:"no"},{value:"yes"},
        {value:"No"},{value:"no"}
      ],
    };
  }]);

<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<div ng-app="selectExample" ng-controller="ExampleController">
<table id="example" width="100%">
    <thead>
       <tr align="center">
         <th>Value</th>
         <th>Replace</th>
       </tr>
    </thead>			
    <tbody>
       <tr ng-repeat="person in register.value">
         <td align="center">{{ person.value }}</td>
         <td align="center">{{ person.value ? "Yup":" "}}</td>
       </tr>
    </tbody>
</table> 
</div>

Answer 1

如果您无法更改值，则可以在值上调用toLowerCase()以确保其为小写字母，然后将其与"yes"进行比较

angular.module('selectExample', [])
  .controller('ExampleController', ['$scope', function($scope) {
    $scope.register = {
      value: [
        {value:"Yes"},{value:"no"},{value:"yes"},
        {value:"No"},{value:"no"}
      ],
    };
  }]);

<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<div ng-app="selectExample" ng-controller="ExampleController">
<table id="example" width="100%">
    <thead>
       <tr align="center">
         <th>Value</th>
         <th>Replace</th>
       </tr>
    </thead>			
    <tbody>
       <tr ng-repeat="person in register.value">
         <td align="center">{{ person.value }}</td>
         <td align="center">{{ person.value.toLowerCase() == "yes" ? "Yup":" "}}</td>
       </tr>
    </tbody>
</table> 
</div>

代码不起作用的原因是，当您使用三进制(? :)时，它将值转换为真实值，并且非空字符串将始终为true，因此每个值均为true，并将始终成为"Yup"

Answer 2

angular.module('selectExample', [])
  .controller('ExampleController', ['$scope', function($scope) {
    $scope.register = {
      value: [
        {value:"Yes"},{value:"no"},{value:"yes"},
        {value:"No"},{value:"no"}
      ],
    };
  }]);
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<div ng-app="selectExample" ng-controller="ExampleController">
<table id="example" width="100%">
    <thead>
       <tr align="center">
         <th>Value</th>
         <th>Replace</th>
       </tr>
    </thead>            
    <tbody>
       <tr ng-repeat="person in register.value">
         <td align="center">{{ person.value }}</td>
         <td align="center">{{ person.value.toLowerCase() == "yes" ? "Yup":" "}}</td>
       </tr>
    </tbody>
</table> 
</div>

如果value ==“ string”，否则如何显示ng-repeat中的值，否则不显示

2 个答案: