AngularJS filter basic

AngularJS filter basic

HTML

<div ng-app="myApp">
    <div ng-controller='Ctrl'>
        <textarea ng-model="textmainboardJSON" ng-change="updateMainboard()"></textarea>
    </div>
</div>

JavaScript

var app = angular.module('myApp', []);

app.controller('Ctrl',['$scope','$rootScope',function($scope,$rootScope) {
$scope.textmainboard = {"jsontype":"object"};
$scope.textmainboardJSON = angular.toJson($scope.textmainboard);

    $scope.updateMainboard=function() {
    
    $scope.textmainboard = angular.fromJson($scope.textmainboardJSON);
    
    
        alert('changed:'+$scope.textmainboard[Object.keys($scope.textmainboard)[0]]);
    }
}]);

    app.filter('test', function() {
        return function(input) {
         return input;
        };
    });