Javascript Angular js ng class错误条件在ng repeat中不起作用
如果选择了该收音机,我想突出显示li。 在ng repeat内,ng类真实条件有效,但虚假条件无效,请检查下面的代码Javascript Angular js ng class错误条件在ng repeat中不起作用,javascript,html,angularjs,angularjs-ng-repeat,ng-class,Javascript,Html,Angularjs,Angularjs Ng Repeat,Ng Class,如果选择了该收音机,我想突出显示li。 在ng repeat内,ng类真实条件有效,但虚假条件无效,请检查下面的代码 <div ng-init="friends = [ {name:'John', age:25, gender:'boy'}, {name:'Jessie', age:30, gender:'girl'}, {name:'Johanna', age:28, gender:'girl'}, {name:'Joy',
<div ng-init="friends = [
{name:'John', age:25, gender:'boy'},
{name:'Jessie', age:30, gender:'girl'},
{name:'Johanna', age:28, gender:'girl'},
{name:'Joy', age:15, gender:'girl'},
{name:'Mary', age:28, gender:'girl'},
{name:'Peter', age:95, gender:'boy'},
{name:'Sebastian', age:50, gender:'boy'},
{name:'Erika', age:27, gender:'girl'},
{name:'Patrick', age:40, gender:'boy'},
{name:'Samantha', age:60, gender:'girl'}
]">
<ul class="example-animate-container">
<li class="animate-repeat" ng-repeat="friend in friends" ng-class="{true:'hightlight',false:''}[radioBox==friend.name]">
<input type="radio" name="friends" ng-model="radioBox" value="{{friend.name}}" />
</li>
</ul>
</div>
如果表达式的计算结果为对象,则对于具有truthy值的对象的每个键值对,相应的键将用作类名
如果表达式的计算结果为对象,则对于具有truthy值的对象的每个键值对,相应的键将用作类名
这是因为ng repeat为每个li元素创建了一个新的子作用域,因此每个li元素在其自己的作用域中将有自己的radioBox值
有关更多详细信息,请阅读
你可以通过一个简单的方法来避免这个问题。在ng模型中,例如使用model.radioBox,如下所示:
<li class="animate-repeat" ng-repeat="friend in friends" ng-class="{true:'hightlight',false:''}[model.radioBox==friend.name]">
<input type="radio" name="friends" ng-model="model.radioBox" value="{{friend.name}}" />
</li>
示例:这是因为ng repeat为每个li元素创建了一个新的子作用域,因此每个li元素在自己的作用域中都有自己的radioBox值
有关更多详细信息,请阅读
你可以通过一个简单的方法来避免这个问题。在ng模型中,例如使用model.radioBox,如下所示:
<li class="animate-repeat" ng-repeat="friend in friends" ng-class="{true:'hightlight',false:''}[model.radioBox==friend.name]">
<input type="radio" name="friends" ng-model="model.radioBox" value="{{friend.name}}" />
</li>
示例Plunker:
$scope.model = {
radioBox: undefined
};