flat vs nested get

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  flat = {
  	'some.nested.keys': 'flat'
	};
	
	nested = {
    some: {
      nested: {
        keys: 'nested'
      }
    }
  }
}

helpers.better-get\.js

import { helper } from '@ember/component/helper';

function safeRead(obj, selector) {
  if (obj == null) { return null; }
  if (!selector || selector.length === 0) { return obj; }
  if (selector in obj) {
    return obj[selector];
  } else {
    let parts = selector.split('.');
    return safeRead(obj[parts.shift()], parts.join('.'));
  }
}

export default helper(function betterGet([obj, selector]) {
  return safeRead(obj, selector);
});

templates.application\.hbs

{{! this will work}}
Flat: "{{better-get this.flat 'some.nested.keys'}}"

{{! this will work}}
Nested: "{{better-get this.nested 'some.nested.keys'}}"

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}