Function

bool (dependentKey) ComputedProperty public

Module:	@ember/object

Defined in packages/@ember/object/lib/computed/computed_macros.js:321

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

dependentKey

String

returns

ComputedProperty

computed property which converts to boolean the original value for property

A computed property that converts the provided dependent property into a boolean value.

Example:

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


class Hamster {
  @bool('numBananas') hasBananas
}

let hamster = new Hamster();

hamster.hasBananas; // false

set(hamster, 'numBananas', 0);
hamster.hasBananas; // false

set(hamster, 'numBananas', 1);
hamster.hasBananas; // true

set(hamster, 'numBananas', null);
hamster.hasBananas; // false

Classic Class Example:

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


let Hamster = EmberObject.extend({
  hasBananas: bool('numBananas')
});

let hamster = Hamster.create();

hamster.hasBananas; // false

set(hamster, 'numBananas', 0);
hamster.hasBananas; // false

set(hamster, 'numBananas', 1);
hamster.hasBananas; // true

set(hamster, 'numBananas', null);
hamster.hasBananas; // false