Checking if object is empty, works with ng-show but not from controller?

angularjs angularjs-scope
Martin picture Martin · Jul 24, 2013 · Viewed 331k times · Source

I have a JS object declared like so

$scope.items = {};

I also have a $http request that fills this object with items. I would like to detect if this item is empty, it appears that ng-show supports this... I enter 

ng-show="items"

and magically it works,I would also like to do the same from a controller but i can't seem to get it to work, it appears I may have to iterate over the object to see if it has any properties or use lodash or underscore.

Is there an alternative?

I did try 

alert($scope.items == true);

but it always returns false , when the object is created and when populated with $http, so its not working that way.

Answer

testing123 picture testing123 · May 9, 2014

Or you could keep it simple by doing something like this:

alert(angular.equals({}, $scope.items));

Related questions

How do I use $scope.$watch and $scope.$apply in AngularJS?

I don't understand how to use $scope.$watch and $scope.$apply. The official documentation isn't helpful. What I don't understand specifically: Are they connected to the DOM? How can I update DOM changes to the model? What is the connection …

Read More
How do I access the $scope variable in browser's console using AngularJS?

I would like to access my $scope variable in Chrome's JavaScript console. How do I do that? I can neither see $scope nor the name of my module myapp in the console as variables.

Read More
What is the difference between '@' and '=' in directive scope in AngularJS?

I've read the AngularJS documentation on the topic carefully, and then fiddled around with a directive. Here's the fiddle. And here are some relevant snippets: From the HTML: <pane bi-title="title" title="{{title}}">{{text}}</pane> From …

Read More