Live array sorting

controllers.application.js

import Ember from 'ember';

let nextNum = 1;

export default Ember.Controller.extend({
  sort: Object.freeze(['tag:asc']),
  things: Ember.computed.sort('model', 'sort'),
  
  actions: {
    add() {
      this.store.createRecord('my-model', {
        name: `Name ${nextNum++}`,
        tag: `${Math.floor(Math.random() * 100000000)}`
      });
    }
  }
});

models.my-model.js

import Model from 'ember-data/model';
import attr from 'ember-data/attr';
import { belongsTo, hasMany } from 'ember-data/relationships';

export default Model.extend({
  name: attr('string'),
  tag: attr('string')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
    return this.store.peekAll('my-model');
  }
});

templates.application.hbs

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

<button {{action "add"}}>Add</button>

<ul>
  {{#each things as |thing|}}
    <li>{{thing.name}} (tag: {{thing.tag}})</li>
  {{else}}
    <li>No things yet</li>
  {{/each}}
</ul>

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"
  }
}