Created
March 31, 2014 12:54
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AngularJS watch array length change.
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| angular.module('myApp', []); | |
| angular.module('myApp').controller('watcherCtrl', ['$scope', function($scope) { | |
| $scope.myArray = []; | |
| var index = 42; | |
| $scope.push = function () { | |
| $scope.myArray.push(index++); | |
| } | |
| $scope.$watch('myArray.length', function() { | |
| if ($scope.myArray.length > 0) { | |
| alert('Index pushed into myArray'); | |
| } | |
| }); | |
| }]); |
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| <div ng-app='myApp'> | |
| <div ng-controller='watcherCtrl'> | |
| <input type='button' title='Push' ng-click='push()'/> | |
| <ul> | |
| <li ng-repeat='item in myArray'>{{item}}</li> | |
| </ul> | |
| </div> | |
| </div> |
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