Change class of just one element in an ngRepeat
Solution 1
Continuing from the comments. Than you can't use $scope variable for that, because, as you said, it will be the same. TO solve this you need to use ng-class properly. Docs: https://docs.angularjs.org/api/ng/directive/ngClass (see an example at the bottom of the page)
<button ng-class="{'btn-on' : tube.toggled, 'btn-off' : !tube.toggled}" ng-repeat="tube in node.Tubes" ng-click="toggleBtn(tube)">{{"Tube " + ($index + 1)}}</button>
http://plnkr.co/edit/WKLJ45yRYu1583C2ZnfT?p=preview
Solution 2
I'm not sure I understand if that's what you want, but you can use:
<button class="btn" ng-repeat="tube in node.Tubes" ng-class="{'btn-off':!toggled, 'btn-on':toggled}" ng-click="toggled = !toggled">{{"Tube " + ($index + 1)}}</button>
no need to add any code to the controller in this case.
Solution 3
These other answers are excellent. However, I would like to point out another method for this. Let's say you were looping through an array of receipts. For example, in the controller you had receipts in scope:
$scope.receipts = [ ... ];
And on the front-end you were looping through these receipts:
<div ng-repeat="receipt in receipts">{{ receipt.[attribute] }}</div>
One way to keep track of unique classes is to add a "class" key to the receipt objects. For example a receipt would look like:
receipt { 'id': '1', 'class' : ' ... ' }
On the front-end, you would determine the class using ng-class:
<div ng-repeat="receipt in receipts">
<div ng-class="receipt.class"></div>
</div>
And then, you could pass the receipt and its ID to a toggleButton() method like so:
<div ng-repeat="receipt in receipts">
<div class="btn" ng-click="toggleClass(receipt.id)"></div>
<div ng-class="receipt.class"></div>
</div>
And then within the controller you could simply update the class for that particular receipt (assuming here there is a method getReceipt() that gets a receipt from the array $scope.receipts):
$scope.toggleClass = function(id) {
getReceipt(id).class = { ... }
}
This would dynamically change the class for that single receipt based on the logic within the toggleClass() function.
Jon Harding
Web Developer. Interested in AngularJS as well as WebAPI right now
Updated on June 06, 2022Comments
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Jon Harding about 2 years
I have an ng-repeat. And I would like to change the class of just that element vs the entire group.
<button ng-class="defaultClass" ng-repeat="tube in node.Tubes" ng-click="toggleBtn(tube)">{{"Tube " + ($index + 1)}}</button>
with the above HTML on my
ng-click
I can pass the tube, which really only gives me the data passed from the API, if Iconsole.log(this)
I see the class name in an element called$$watchers
but that seems odd to change it from there.$scope.toggleBtn = function (element) { console.log(element); console.log(this); }
In my controller I have
$scope.defaultClass = "btn btn-off";
but if I change that with the function it changes every element.How can I only change the class of the element clicked?