javascript - How to know add element to an array if checkbox is checked and remove it if unchecked? -

here code on html. find on google can use this.

<input type="checkbox" ng-true-value="addtitle(cpportfolioitem)" ng-false-value="removetitle(cpportfolioitem)"> 

here angularjs controller.

$scope.addtitle = function(cpportfolioitem){         $scope.selectedtitles.push(cpportfolioitem.id);         console.log('$scope.selectedtitles', $scope.selectedtitles);      };       $scope.removetitle = function(cpportfolioitem){         $scope.selectedtitles.splice(cpportfolioitem.id,1);         console.log('$scope.selectedtitles', $scope.selectedtitles);      }; 

it doesn't work. have logged in console can see neither push or splice array. maybe ng-true-value not valid directive? can me on this? appreciate it.

base on documentation ng-true-value , ng-false-value value not event handlers. these value set model when input checked(ng-true-value) or unchecked(ng-false-value).

use this instead or use ng-model , attach $watch model.