so-52484561/ember-if-lastitem-in-each

controllers.application.js

import Ember from 'ember';
import { computed } from '@ember/object';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  items: computed(function() {
    return ['a', 'b', 'c', 'd'];
  })
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<ul>
  {{#each items as |item index|}}
    <li>
    	{{item}}
      {{#unless index}}(first){{/unless}}
      {{#if (eq index (sub items.length 1))}}(last){{/if}}
    </li>
  {{/each}}
</ul>
<br>

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
    "ember-data": "3.2.0",
    "ember-math-helpers": "2.7.0",
    "ember-truth-helpers": "2.1.0"
  }
}