key-value pairs in ng-options
use ng-option:
<select ng-model="blah" ng-options="key as value for (key , value) in data"></select>or use ng-repeat:
<select> <option ng-repeat="(key, value) in data" value="{{key}}">{{value}}</option></select>data in controller:
$scope.data = { "key1": "val1", "key2": "val2", "key3": "val3", ...};
The following article discusses the variety of ways that you can use ngOptions (by far the clearest, most thorough explanation I've ever seen): http://www.undefinednull.com/2014/08/11/a-brief-walk-through-of-the-ng-options-in-angularjs/
Answer by Chen-Tsu Lin actually gives both ways of accessing objects. Just want to add few more lines -
Because the ng-repeat directive repeats a block of HTML code for each item in an array, it can be used to create options in a dropdown list, but the ng-options directive was made especially for filling a dropdown list with options and has at least one important advantage:
Dropdowns made with
ng-optionsallows the selected value to be an object, while dropdowns made fromng-repeathas to be a string.
Adding an example for the reference:
ng-repeat : http://www.w3schools.com/angular/tryit.asp?filename=try_ng_select_repeat_selected
ng-options: http://www.w3schools.com/angular/tryit.asp?filename=try_ng_select_object
For complete reference, head onto http://www.w3schools.com/angular/angular_select.asp