Function

union (propertyKey) Ember.ComputedProperty public

Defined in packages/ember-runtime/lib/computed/reduce_computed_macros.js:482

import { union } from '@ember/object/computed';

propertyKey

String

returns

Ember.ComputedProperty

computes a new array with all the unique elements from the dependent array

A computed property which returns a new array with all the unique elements from one or more dependent arrays.

Example

let Hamster = Ember.Object.extend({
  uniqueFruits: Ember.computed.union('fruits', 'vegetables')
});

let hamster = Hamster.create({
  fruits: [
    'banana',
    'grape',
    'kale',
    'banana',
    'tomato'
  ],
  vegetables: [
    'tomato',
    'carrot',
    'lettuce'
  ]
});

hamster.get('uniqueFruits'); // ['banana', 'grape', 'kale', 'tomato', 'carrot', 'lettuce']