deeply set an object

controllers.application.js

import Ember from 'ember';
import deeplySet from '../utils/deeply-set';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  hierarchy: {},
  
  init() {
    this._super(...arguments);
    deeplySet(this.get('hierarchy'), 'company.region.department.employee.name', 'Jim Bob');
    deeplySet(this.get('hierarchy'), 'company.region.department.employee.age', 25);
    deeplySet(this.get('hierarchy'), 'company.region.department.name', 'Accounting');
  }                                    
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

{{hierarchy.company.region.department.name}}
{{hierarchy.company.region.department.employee.name}}
{{hierarchy.company.region.department.employee.age}}
<br>
<br>

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {}
}

utils.deeply-set.js

// see https://gist.github.com/poteto/c32e1e48b63da58d64225b861389b709

import Ember from 'ember';

const { set, get } = Ember;

export default function deeplySet(obj, key, value) {
  let keys = key.split('.');
  let prev;
  while (keys.length > 1) {
    let next = keys.shift();
    if (prev) {
      next = `${prev}.${next}`;
    }
    set(obj, next, get(obj, next) || {});
    prev = next;
  }
  set(obj, key, value);
  return obj;
}