I am not getting any solution for having combobox as select as well as input. That means if user selection in not there in per-populated list , then use should be able to enter
I also was looking for the same thing and didn't find a good solution, so I ended up creating angular-combo-box directive which lets you do what you are looking for. Here's an example.
angular.module('ngComboBoxExample', ['ngComboBox'])
.controller('myController', function($scope) {
$scope.options = [
'Blue',
'Red',
'Pink',
'Purple',
'Green'
];
$scope.color = '';
});
Selected Color:
Hope it helps!