JOSN Filter

Question

hello Experts,

 

i am new in angularjs  i have following JSON data

$scope.countries = {

'India': {

'Maharashtra': ['Pune', 'Mumbai', 'Nagpur', 'Akola'],

'Madhya Pradesh': ['Indore', 'Bhopal', 'Jabalpur'],

'Rajasthan': ['Jaipur', 'Ajmer', 'Jodhpur']

},

'USA': {

'Alabama': ['Montgomery', 'Birmingham'],

'California': ['Sacramento', 'Fremont'],

'Illinois': ['Springfield', 'Chicago']

},

'Australia': {

'New South Wales': ['Sydney'],

'Victoria': ['Melbourne']

}

};

 

i want only list of country, only list of States

 

ng-options="country for (country, states) in countries" by using this i got whole JSON data..i want only list of country, only list of States.

 

please help...thank u