angularjs - How to assign Boolean value to model -

i have following view 2 input radio buttons:

<label>     <input type="radio" name="test" ng-model="foobar"          value="true" ng-change="logconsole()">     true </label>  <label>     <input type="radio" name="test" ng-model="foobar"          value="false" ng-change="logconsole()">     false </label> 

and controller looks like:

//initialization $scope.foobar = false;  $scope.logconsole = function () {     console.log("value : " + $scope.foobar);     console.log("type : " + typeof $scope.foobar); //always displays 'string' }; 

my problem when user selects either of radio buttons, type of foobar model string, value either string 'true' or string 'false' - want type boolean true value or boolean false value. how can store boolean value (from within view) onto model?

edit: tried out , still not work. value attribute, passed function return boolean true or false, this:

<input type="text" value="{{getboolean('true')}}....> 

$scope.getboolean = function (value) { if (value === 'true') return true; else return false; };

it still results in string when radio buttons selected...

one of comments in the documentation says:

while ng-value not documented, useful directive, when binding boolean value.

<input ng-model="foo" type="radio" value="true">  

may not work

<input ng-model="foo" ng-value="true" type="radio">  

does.