accessing returned promise object array values

Question

I'm trying to access the length of an array returned from the promise object. However, I'm not getting any luck for it to work as it returns undefined when i check the array itself, and i try to access the specific element its says cannot read property

from the chrome console

f {$promise: Object, $resolved: false, $get: function, $save: function, $query: function…}
$promise: Object
$resolved: true
address: "1600 amphitheatre way , Mountain View, CA 94043"
address_1: "1600 amphitheatre way "
address_2: "Mountain View, CA 94043"
affiliation_attributes: Array[0]
award_attributes: Array[0]
certification_attributes: Array[0]
description: ""
description_read_more: false
education_attributes: Array[1]
id: 1
lat: "37.422003"
lng: "-122.083978"
name: "Gio Wong"
phone: "650-701-6411"
photos: Array[3]
practice_name: "Super Doctor"
rating: null
rating_url: null
salutation: "DDS"
services: Array[4]
specialty: "Pediatrician"
__proto__: f

I'm trying to access education,affiliation, award and certification attributes. The following code is how i print to console and how the promise object is get

$scope.provider = Provider.get($routeParams.name);
console.log($scope.provider)

how do i access $scope.provider.education_attributes.length? or even $scope.provider.education_attributes[0]? both returned cannot read property.

Maybe this helps to learn how promises work: andyshora.com/promises-angularjs-explained-as-cartoon.html — Felix Kling
– Felix Kling, Commented Aug 19, 2014 at 23:25

Noah Solomon · Accepted Answer · 2014-08-19 23:32:25Z

4

The provider function returns an Angular Promise object. It does not directly return your data. Instead you provide the Promise with a function to call once the Promise has resolved.

You should instead do:

Provider.get($routeParams.name).then(function(resolveData) {
  //access stuff on resolveData here
});

See "The Promise API" section of Angular's $q service.

answered Aug 19, 2014 at 23:32

Noah Solomon

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