Function

collect (dependentKey) ComputedProperty public

Module: @ember/object

Defined in packages/@ember/object/lib/computed/reduce_computed_macros.js:1193 

import { collect } from '@ember/object/computed';
dependentKey
String
returns
ComputedProperty
computed property which maps values of all passed in properties to an array.

A computed property that returns the array of values for the provided dependent properties.

Example:

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import { set } from '@ember/object';
import { collect } from '@ember/object/computed';

class Hamster {
  @collect('hat', 'shirt') clothes;
}

let hamster = new Hamster();

hamster.clothes; // [null, null]

set(hamster, 'hat', 'Camp Hat');
set(hamster, 'shirt', 'Camp Shirt');
hamster.clothes; // ['Camp Hat', 'Camp Shirt']

Classic Class Example:

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import EmberObject, { set } from '@ember/object';
import { collect } from '@ember/object/computed';

let Hamster = EmberObject.extend({
  clothes: collect('hat', 'shirt')
});

let hamster = Hamster.create();

hamster.clothes; // [null, null]

set(hamster, 'hat', 'Camp Hat');
set(hamster, 'shirt', 'Camp Shirt');
hamster.clothes; // ['Camp Hat', 'Camp Shirt']