Function

uniqBy (dependentKey, propertyKey) ComputedProperty public

Defined in packages/@ember/object/lib/computed/reduce_computed_macros.js:457

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

dependentKey

String

propertyKey

String

returns

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 an array, with uniqueness determined by specific key.

Example

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import { uniqBy } from '@ember/object/computed';
import EmberObject from '@ember/object';

let Hamster = EmberObject.extend({
  uniqueFruits: uniqBy('fruits', 'id')
});
let hamster = Hamster.create({
  fruits: [
    { id: 1, 'banana' },
    { id: 2, 'grape' },
    { id: 3, 'peach' },
    { id: 1, 'banana' }
  ]
});
hamster.get('uniqueFruits'); // [ { id: 1, 'banana' }, { id: 2, 'grape' }, { id: 3, 'peach' }]