$scope variable undefined in angular controller

Question

Hi ,

I have the following example code in my app:

Go

 

Now i have Angular controller like this :

 

angular.module('WidgetsApp').controller('Widgetscontroller', function ($scope, factory) {

$scope.getData = function () {

$scope.d = {};

var txt = $scope.d.txt_chart;

var res = factory.getData(txt);

});

})();

 

 but var txt = $scope.d.txt_chart; this gives undefined value. how to resolve this. i m new to angular