The solution is actually described here: http://www.anujgakhar.com/2013/06/15/duplicates-in-a-repeater-are-not-allowed-in-angularjs/ AngularJS does not allow duplicates in a ng-repeat directive. This means if you are trying to do the following, you will get an error. // This code throws the error “Duplicates in a repeater are not allowed. // Repeater: row in [1,1,1] key: number:1″ <div ng-repeat=”row in [1,1,1]”> … Read more
Specify the property (i.e. colour) where you want the filter to be applied: <div ng-repeat=”product in products | filter:{ colour: by_colour }”>
After some diving through some documentation and source code, I think I got it working. Perhaps this will be useful for someone else? I added the following to my module configuration: angular.module(…) .config( [‘$routeProvider’, function($routeProvider) {…}] ) .run( function($rootScope, $location) { // register listener to watch route changes $rootScope.$on( “$routeChangeStart”, function(event, next, current) { if … Read more
Depends on your use case but to summarise the difference: ng-if will remove elements from DOM. This means that all your handlers or anything else attached to those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed … Read more
Compile : This is the phase where Angular actually compiles your directive. This compile function is called just once for each references to the given directive. For example, say you are using the ng-repeat directive. ng-repeat will have to look up the element it is attached to, extract the html fragment that it is attached … Read more
The app router specified navigation to MyController like so: $routeProvider.when(“https://stackoverflow.com/”, { templateUrl: ‘pages/home.html’, controller: MyController }); But I also had this in home.html: <div data-ng-controller=”MyController”> This digested the controller twice. Removing the data-ng-controller attribute from the HTML resolved the issue. Alternatively, the controller: property could have been removed from the routing directive. This problem also … Read more
ng-bind has one-way data binding ($scope –> view). It has a shortcut {{ val }} which displays the scope value $scope.val inserted into html where val is a variable name. ng-model is intended to be put inside of form elements and has two-way data binding ($scope –> view and view –> $scope) e.g. <input ng-model=”val”/>.
To apply different classes when different expressions evaluate to true: <div ng-class=”{class1 : expression1, class2 : expression2}”> Hello World! </div> To apply multiple classes when an expression holds true: <!– notice expression1 used twice –> <div ng-class=”{class1 : expression1, class2 : expression1}”> Hello World! </div> or quite simply: <div ng-class=”{‘class1 class2’ : expression1}”> Hello World! … Read more
All angular services are singletons: Docs (see Services as singletons): https://docs.angularjs.org/guide/services Lastly, it is important to realize that all Angular services are application singletons. This means that there is only one instance of a given service per injector. Basically the difference between the service and factory is as follows: app.service(‘myService’, function() { // service is … Read more
Inject $filter to your controller function myCtrl($scope, $filter) { } Then wherever you want to use that filter, just use it like this: $filter(‘filtername’); If you want to pass arguments to that filter, do it using separate parentheses: function myCtrl($scope, $filter) { $filter(‘filtername’)(arg1,arg2); } Where arg1 is the array you want to filter on and … Read more