How do I set the value property in AngularJS' ng-options?

Question

Here is what seems to be bothering a lot of people (including me).

When using the ng-options directive in AngularJS to fill in the options for a &

Answer 1

For an object:

<select ng-model="mySelect" ng-options="key as value for (key, value) in object"></select>

Answer 2

The tutorial ANGULAR.JS: NG-SELECT AND NG-OPTIONS helped me solve the problem:

<select id="countryId"
  class="form-control"
  data-ng-model="entity.countryId"
  ng-options="value.dataValue as value.dataText group by value.group for value in countries"></select>

Answer 3

The ng-options directive does not set the value attribute on the <options> elements for arrays:

Using limit.value as limit.text for limit in limits means:

set the <option>'s label as limit.text
save the limit.value value into the select's ng-model

See Stack Overflow question AngularJS ng-options not rendering values.