SO#53309437

components.each-in-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  objectProperties: Ember.computed('object', function() {
    let object = this.get('object');
    return Object.keys(object).map(key => {
        return {
            'key': key,
            'value': Ember.get(object, key)
        };
    });
  }),
  
  tagName: ''
}).reopenClass({
  positionalParams: ['object']
});

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  init() {
    this._super(...arguments);
    this.attributes = {
        'SKU': '123',
        'UPC': 'ABC',
        'Title': 'Hour Glass'
       }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{my-component}}
<br>
<br>

templates.components.each-in-component.hbs

{{#each objectProperties as |objectProperty|}}
    {{yield objectProperty.key objectProperty.value}}
{{/each}}

templates.components.my-component.hbs

{{#each-in-component attributes as |key value|}}
    {{key}} : {{value}}<br>
{{/each-in-component}}

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}