Javascript 如何使用AngularJS添加和删除类?
我有几个按钮,像开关一样工作。如果单击其中一个按钮,它将变为活动状态并“关闭”其他按钮。我使用jQuery实现了这一点,但希望使用AngularJS。这是我的密码: HTMLJavascript 如何使用AngularJS添加和删除类?,javascript,jquery,angularjs,angularjs-ng-click,angularjs-ng-class,Javascript,Jquery,Angularjs,Angularjs Ng Click,Angularjs Ng Class,我有几个按钮,像开关一样工作。如果单击其中一个按钮,它将变为活动状态并“关闭”其他按钮。我使用jQuery实现了这一点,但希望使用AngularJS。这是我的密码: HTML <div class="button-bar"> <a class="button button-energized" id="weak">weak</a> <a class="button button-energized" id="normal">norm
<div class="button-bar">
<a class="button button-energized" id="weak">weak</a>
<a class="button button-energized" id="normal">normal</a>
<a class="button button-energized" id="strong">strong</a>
</div>
您可以使用
ng click
来切换selected
标志,该标志可与ng类
一起用于绑定/解除绑定类
标记
<div class="button-bar">
<a class="button button-energized" id="weak"
ng-class="{active: $parent.selected=='weak'}" ng-click="$parent.selected='weak'">
weak
</a>
<a class="button button-energized" id="normal"
ng-class="{active: selected=='normal'}" ng-click="selected='normal'">
normal
</a>
<a class="button button-energized" id="strong"
ng-class="{active: selected=='strong'}" ng-click="selected='strong'">
strong
</a>
</div>
$scope.strengths = ["weak","normal","strong"];
代码
<div class="button-bar">
<a class="button button-energized" id="{{strength}}"
ng-class="{active: $parent.selected == strength}"
ng-click="$parent.selected=strength"
ng-repeat="strength in strengths">
{{strength}}
</a>
</div>
{{强度}}
您可以使用
元素(document.querySelector(“#cntrlID”).removeClass(“customclass”)
HTML:
<div class="button-bar">
<a class="button button-energized" id="weak" ng-click=removeNS()>weak</a>
<a class="button button-energized" id="normal" ng-click=removeWS()>normal</a>
<a class="button button-energized" id="strong" ng-click=removeWN()>strong</a>
</div>
为了进一步优化,您只需创建一个函数,并将查询选择器和要删除的类作为函数参数传递,如:
function(id1,id2,removeClassName)
@Soosma感谢mate的提琴第一个例子很酷,我怎么才能让第一个选项默认为“主动”类?@souleater默认为“主动”类是什么意思?@PankajParkar我的意思是如果我想要第一个选项(在提琴例子中:“弱”)在打开页面时显示为红色:默认情况下已选择第一个选项。
$scope.removeNS = function(){
angular.element(document.querySelector("#normal")).removeClass("active");
angular.element(document.querySelector("#strong")).removeClass("active");
}
$scope.removeWS = function(){
angular.element(document.querySelector("#weak")).removeClass("active");
angular.element(document.querySelector("#strong")).removeClass("active");
}
$scope.removeWN = function(){
angular.element(document.querySelector("#weak")).removeClass("active");
angular.element(document.querySelector("#normal")).removeClass("active");
}
function(id1,id2,removeClassName)