component demo

components.my-component.js

import Ember from 'ember';
import {
  computed
} from '@ember/object';
export default Ember.Component.extend({
      init() {
      this._super(...arguments);
      this.dataSorting = ['total_customers']
      this.dataSortingDesc = ['total_customers:desc']

    },

  sortedDataDesc: computed.sort('unsortedData', 'dataSortingDesc'),
  sortedData: computed.sort('unsortedData', 'dataSorting'),
  unsortedData: computed('model', function () {
    return this.get('model');

  
  }),
  

  actions: {
      columnsort(property) {
      if (!this.get('tableSorted')) {  

        this.set('dataSortingDesc', [`${property}:desc`])
        this.set('model', this.get('sortedDataDesc'))
        this.set('tableSorted', true)
  
      } else {
        this.set('dataSorting', [property])
        this.set('model', this.get('sortedData'))
        this.set('tableSorted', null)
     }

        
  
      },
  }
  
});

components.second-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions: {
    updateFrank(){
      let model = this.get('model');
      let frank = model.find((it) => it.name === 'Frank');
      if(frank){
         frank.set('age', 122); 
      }
    }
  }
});

routes.application.js

import Ember from 'ember';
import EmberObject from '@ember/object';

export default Ember.Route.extend({
  model(){
    return [EmberObject.create({name: "Frank", age: 22}), EmberObject.create({name: "Alan", age: 43}), EmberObject.create({name: "Bob", age: 56})] 
  },
  setupController(controller, model){
    controller.set('model', model);
    controller.set('tableModel', model.slice(0));
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{my-component model=tableModel}}

{{second-component model=model}}
<br>
<br>

<button {{action 'updateFrank'}}>Update Frank</button>

templates.components.my-component.hbs

<table>
<thead>
<th {{action "columnsort" "name"}}>Name</th>
<th {{action "columnsort" "age"}}>Age</th>
</thead>

<tbody>
{{#each model as |model|}}
<tr>
<td>
{{model.name}}
</td>
<td>{{model.age}}</td>
</tr>
{{/each}}
</tbody>
</table>

templates.components.second-component.hbs

{{#each model as |model|}}
<ul>
<li>{{model.name}} - {{model.age}} </li>

</ul>
{{/each}}

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"
  }
}