Associating components through association of parent data and actions

components.number-changer.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',
  init(){
    this._super(...arguments);
    this.set('numbers', [1,2,3,4,5]);
  },
  actions: {
    doubleAssociatedNumbers(clickedNumber){
      this.set('numbers', this.get('numbers').map((num) => {
       	
        if(num % 2 === clickedNumber % 2){
          return num * 5;
        }else{
          return num;
        }
      }));
    }
  }
});

templates.application.hbs

{{#each numbers as |num|}}
	<NumberChanger @num={{num}} @changeNumber={{action "doubleAssociatedNumbers"}} @buttonText="Multiply Me and my fellow odds/evens by 5"/>
{{/each}}

templates.components.number-changer.hbs

<div>{{num}} <button {{action changeNumber num}}>{{buttonText}}</button></div>

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"
  }
}