Function

map (dependentKey, callback) ComputedProperty public

Defined in packages/@ember/object/lib/computed/reduce_computed_macros.js:186

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

dependentKey

String

callback

Function

returns

ComputedProperty

an array mapped via the callback

Returns an array mapped via the callback

The callback method you provide should have the following signature. item is the current item in the iteration. index is the integer index of the current item in the iteration.

1

function(item, index);

Example

1
2
3
4
5
6
7
8
9
10
11
12
13
14

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

let Hamster = EmberObject.extend({
  excitingChores: map('chores', function(chore, index) {
    return chore.toUpperCase() + '!';
  })
});

let hamster = Hamster.create({
  chores: ['clean', 'write more unit tests']
});

hamster.get('excitingChores'); // ['CLEAN!', 'WRITE MORE UNIT TESTS!']