如何添加和删除类AngularJS? [英] How to add and remove class with AngularJS?
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问题描述
我有工作就像切换几个按钮。如果您单击之一,它变得活跃和关闭按钮等。我这样做是使用jQuery而是想使用AngularJS。这里是我的code:
HTML
< DIV CLASS =按钮栏>
<一类=按钮按钮通电ID =弱>弱LT; / A>
&下;一类=按钮按键断电ID =正常>正常&下; / A>
<一类=按钮按钮通电ID =强>强< / A>
< / DIV>
的JavaScript
.controller('AppCtrl',函数($范围,$ stateParams){ $('#弱')。点击(函数(){
$('#弱')addClass(激活)。
$('#正常)removeClass移除(激活)。
$('#强)removeClass移除(激活)。
}); $('#正常')。点击(函数(){
$('#正常')addClass(激活)。
$('#弱)removeClass移除(激活)。
$('#强)removeClass移除(激活)。
}); $('#强)。点击(函数(){
$('#强')addClass(激活)。
$('#正常)removeClass移除(激活)。
$('#弱)removeClass移除(激活)。
}); });
解决方案
您可以有 NG-点击
,可以切换选
标记,这可能是与纳克级
使用绑定/解除绑定类。
标记
< DIV CLASS =按钮栏>
<一类=按钮按钮通电ID =弱
NG-CLASS ={活跃:$ parent.selected =='弱'}NG点击=$ parent.selected =弱>
弱
&所述; / A>
<一类=按钮按钮通电ID =正常
NG-CLASS ={活跃:选择=='正常'}NG点击=选择='正常'>
正常
&所述; / A>
<一类=按钮按钮通电ID =强
NG-CLASS ={活跃:选择=='强'}NG点击=选择='强'>
强大
&所述; / A>
< / DIV>
更好的办法
您可以很容易地通过使用做到这一点 NG-重复
这将减少你的code系列。
标记
$ scope.strengths =弱,正常,强];
code
< DIV CLASS =按钮栏>
<一类=按钮按钮通电ID =弱
NG-CLASS ={活跃:$ parent.selected ==实力}
NG-点击=$ parent.selected =实力
NG-重复=实力优势>
{{强度}}
&所述; / A>
< / DIV>
I have a few buttons that work like switchers. If you click one it becomes active and "shuts down" other buttons. I did this using jQuery but would like to use AngularJS. Here is my code:
HTML
<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>
JavaScript
.controller('AppCtrl', function($scope, $stateParams) {
$('#weak').click(function() {
$('#weak').addClass('active');
$('#normal').removeClass('active');
$('#strong').removeClass('active');
});
$('#normal').click(function() {
$('#normal').addClass('active');
$('#weak').removeClass('active');
$('#strong').removeClass('active');
});
$('#strong').click(function() {
$('#strong').addClass('active');
$('#normal').removeClass('active');
$('#weak').removeClass('active');
});
});
解决方案
You could have ng-click
that can toggle selected
flag, that could be use with ng-class
to bind / unbind class.
Markup
<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>
Better way
You could easily do this by using ng-repeat
which will reduce your line of code.
Markup
$scope.strengths = ["weak","normal","strong"];
Code
<div class="button-bar">
<a class="button button-energized" id="weak"
ng-class="{active: $parent.selected == strength}"
ng-click="$parent.selected=strength"
ng-repeat="strength in strengths">
{{strength}}
</a>
</div>
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