Ember.computed.setDiff()

A computed property which returns a new array with all the properties from the first dependent array that are not in the second dependent array.

Example

let Hamster = Ember.Object.extend({
  likes: ['banana', 'grape', 'kale'],
  wants: Ember.computed.setDiff('likes', 'fruits')
});

let hamster = Hamster.create({
  fruits: [
    'grape',
    'kale',
  ]
});

hamster.get('wants'); // ['banana']